diff options
author | Henning Brauer <henning@cvs.openbsd.org> | 2003-11-17 18:57:07 +0000 |
---|---|---|
committer | Henning Brauer <henning@cvs.openbsd.org> | 2003-11-17 18:57:07 +0000 |
commit | 66021c48874d524af4d9b1d5807a8e1f3078980b (patch) | |
tree | 7ccfcbbc9e45e270b42b5fb132dc6a8f8ad371fb /usr.sbin/httpd/htdocs | |
parent | ed5b84743439c7f38484022cbfbb2552141d51fc (diff) |
merge apache 1.3.29 and mod_ssl 2.8.16
ok brad@
Diffstat (limited to 'usr.sbin/httpd/htdocs')
-rw-r--r-- | usr.sbin/httpd/htdocs/manual/cygwin.html | 6 | ||||
-rw-r--r-- | usr.sbin/httpd/htdocs/manual/howto/ssi.html.ja.jis | 13 | ||||
-rw-r--r-- | usr.sbin/httpd/htdocs/manual/install-tpf.html | 23 | ||||
-rw-r--r-- | usr.sbin/httpd/htdocs/manual/install.html.en | 8 | ||||
-rw-r--r-- | usr.sbin/httpd/htdocs/manual/install.html.html | 8 | ||||
-rw-r--r-- | usr.sbin/httpd/htdocs/manual/install.html.ja.jis | 12 | ||||
-rw-r--r-- | usr.sbin/httpd/htdocs/manual/misc/API.html | 2 | ||||
-rw-r--r-- | usr.sbin/httpd/htdocs/manual/misc/FAQ.html | 3861 | ||||
-rw-r--r-- | usr.sbin/httpd/htdocs/manual/mod/core.html.en | 48 | ||||
-rw-r--r-- | usr.sbin/httpd/htdocs/manual/mod/core.html.html | 48 | ||||
-rw-r--r-- | usr.sbin/httpd/htdocs/manual/mod/directives.html.ja.jis | 7 | ||||
-rw-r--r-- | usr.sbin/httpd/htdocs/manual/mod/mod_access.html.en | 8 | ||||
-rw-r--r-- | usr.sbin/httpd/htdocs/manual/mod/mod_access.html.html | 8 | ||||
-rw-r--r-- | usr.sbin/httpd/htdocs/manual/mod/mod_proxy.html | 118 | ||||
-rw-r--r-- | usr.sbin/httpd/htdocs/manual/windows.html.en | 14 | ||||
-rw-r--r-- | usr.sbin/httpd/htdocs/manual/windows.html.ja.jis | 18 |
16 files changed, 252 insertions, 3950 deletions
diff --git a/usr.sbin/httpd/htdocs/manual/cygwin.html b/usr.sbin/httpd/htdocs/manual/cygwin.html index cf134065896..8bc9ac08415 100644 --- a/usr.sbin/httpd/htdocs/manual/cygwin.html +++ b/usr.sbin/httpd/htdocs/manual/cygwin.html @@ -181,7 +181,7 @@ DocumentRoot "/usr/local/apache/htdocs" </pre> - <p><strong>What about performance?</strong><br/> + <p><strong>What about performance?</strong><br /> Apache for Cygwin is not as high-performance as Apache for Windows on the same hardware.</p> @@ -222,10 +222,10 @@ The site lists the current release, any more recent development versions, and information on any mirror sites.</p> - <p><strong>What about Cygwin Net Distribution binaries?</strong><br/> + <p><strong>What about Cygwin Net Distribution binaries?</strong><br /> Apache for Cygwin is also available as pre-compiled binary package for the Cygwin Net Distribution available at - <href="http://www.cygwin.com">http://www.cygwin.com</a> and it's + <a href="http://www.cygwin.com/">http://www.cygwin.com/</a> and it's <a href="http://www.cygwin.com/setup.exe"><code>setup.exe</code></a> installation process.</p> diff --git a/usr.sbin/httpd/htdocs/manual/howto/ssi.html.ja.jis b/usr.sbin/httpd/htdocs/manual/howto/ssi.html.ja.jis index 536257637c9..3273f9a7630 100644 --- a/usr.sbin/httpd/htdocs/manual/howto/ssi.html.ja.jis +++ b/usr.sbin/httpd/htdocs/manual/howto/ssi.html.ja.jis @@ -7,7 +7,7 @@ <title>Apache $B%A%e!<%H%j%"%k(B: Server Side Includes $BF~Lg(B</title> </head> - <!-- English revision: 1.11 --> + <!-- English revision: 1.14 --> <!-- Background white, links blue (unvisited), navy (visited), red (active) --> <body bgcolor="#ffffff" text="#000000" link="#0000ff" @@ -112,11 +112,6 @@ </tr> </table> - <p>$B$3$NJ8=q$O:G=i!"(BApache Today (http://www.apachetoday.com/) - $B$K;02s$NO":\5-;v$H$7$F7G:\$5$l$^$7$?!#$3$3$G$O!"(BApcheToday $B$H(B - Internet.com $B$H$N6(Dj$K$h$j:\$;$F$$$^$9!#(B - </p> - <p>$B$3$N5-;v$O!"DL>o$OC1$K(B SSI $B$H8F$P$l$k(B Server Side Includes $B$r07$$$^$9!#$3$N5-;v$K$*$$$F$O!"%5!<%P$G$N(B SSI $B$r5v2D$9$k$?$a$N@_Dj$H!"(B $B8=:_$N(B HTML $B%Z!<%8$KF0E*$J%3%s%F%s%D$r2C$($k$?$a$N$$$/$D$+$N4pK\E*$J(B @@ -149,8 +144,10 @@ name="configuringyourservertopermitssi">SSI $B$r5v2D$9$k$?$a$N%5!<%P$N@_Dj(B</a></h2> - <p>$B%5!<%P$G(B SSI $B$r5v2D$9$k$K$O!"(B<code>httpd.conf</code> - $B%U%!%$%k$^$?$O(B <code>.htaccess</code> + <p>$B%5!<%P$G(B SSI $B$r5v2D$9$k$K$O!"(B<a + href="../mod/mod_include.html">mod_include</a> + $B$r%$%s%9%H!<%k!"M-8z2=$9$kI,MW$,$"$j$^$9!#$5$i$K!"(B + <code>httpd.conf</code> $B%U%!%$%k$^$?$O(B <code>.htaccess</code> $B%U%!%$%k$K<!$N%G%#%l%/%F%#%V$r;XDj$9$kI,MW$,$"$j$^$9(B:</p> <pre> Options +Includes diff --git a/usr.sbin/httpd/htdocs/manual/install-tpf.html b/usr.sbin/httpd/htdocs/manual/install-tpf.html index 06ee1972305..604ca4866e4 100644 --- a/usr.sbin/httpd/htdocs/manual/install-tpf.html +++ b/usr.sbin/httpd/htdocs/manual/install-tpf.html @@ -119,7 +119,7 @@ <li><b><tt>cd apache_1.3.<em>xx</em>/src/lib</tt></b></li> <li><b><tt>rm -r expat-lite sdbm</tt></b></li> <li><b><tt>cd ../os</tt></b></li> - <li><b><tt>rm -r bs2000 cygwin mpeix netware os2 os390 win32</tt></b></li> + <li><b><tt>rm -fr bs2000 cygwin mpeix netware os2 os390 unix win32</tt></b></li> <li><b><tt>cd ..</tt></b></li> </ul> @@ -369,6 +369,7 @@ + configured for TPF platform + setting C compiler to c89 + setting C pre-processor to c89 -E + + using "tr [a-z] [A-Z]" to uppercase + checking for system header files + adding selected modules + checking sizeof various data types @@ -462,20 +463,13 @@ <ul> <li> - The following two compilation warnings may or may not occur. - They should be ignored:<br /> - <br /> - util_uri.c: <tt>Function argument - assignment between types "unsigned char*" and "const - unsigned char*" is not allowed.</tt> - <br /> + The following compilation warning may or may not occur. + It should be ignored:<br /> <br /> main/http_main.c: <tt>Infinite loop detected in function child_main. Program may not stop.</tt> <br /> - <br /> - </li> <li>If during compilation you get a warning about a @@ -598,14 +592,12 @@ <li> Using either TFTP or FTP, transfer the configuration file, icons, and web pages to your TPF system. A typical - directory structure for Apache is as follows:<br /> -<pre> -<tt> /usr/local/apache/conf + directory structure for Apache is as follows: +<pre><tt> /usr/local/apache/conf /usr/local/apache/logs /usr/local/apache/icons /usr/local/apache/htdocs -</tt> -</pre> +</tt></pre> All gif, jpg, and zip files should be transferred as binary; the configuration file and html pages should be transferred as text. <br /> @@ -670,7 +662,6 @@ <tt><b>http://<i>xx.xx.xx.xx</i></b></tt> (where <i>xx.xx.xx.xx</i> is your IP address)</li> - </ol> <a id="visualage" name="visualage"></a> diff --git a/usr.sbin/httpd/htdocs/manual/install.html.en b/usr.sbin/httpd/htdocs/manual/install.html.en index 207d64ca5c5..67558688dd0 100644 --- a/usr.sbin/httpd/htdocs/manual/install.html.en +++ b/usr.sbin/httpd/htdocs/manual/install.html.en @@ -56,13 +56,7 @@ <h2><a id="download" name="download">Downloading Apache</a></h2> <p>You may download the latest version of Apache either directly from the - Apache web site, at <a - href="http://www.apache.org/dist/httpd/">http://www.apache.org/dist/httpd/</a>, - or from one of the many mirror sites, listed at <a - href="http://www.apache.org/dyn/closer.cgi">http://www.apache.org/dyn/closer.cgi</a>. - These sites will list the current release, and more recent beta releases, - and have links to older versions, and binary distributions for a variety - of platforms.</p> + <a href="http://httpd.apache.org/download.cgi">Download Page</a>.</p> <h2><a id="intro" name="intro">Introduction</a></h2> diff --git a/usr.sbin/httpd/htdocs/manual/install.html.html b/usr.sbin/httpd/htdocs/manual/install.html.html index 3352a08fbed..256b94a71ad 100644 --- a/usr.sbin/httpd/htdocs/manual/install.html.html +++ b/usr.sbin/httpd/htdocs/manual/install.html.html @@ -58,13 +58,7 @@ <h2><a id="download" name="download">Downloading Apache</a></h2> <p>You may download the latest version of Apache either directly from the - Apache web site, at <a - href="http://www.apache.org/dist/httpd/">http://www.apache.org/dist/httpd/</a>, - or from one of the many mirror sites, listed at <a - href="http://www.apache.org/dyn/closer.cgi">http://www.apache.org/dyn/closer.cgi</a>. - These sites will list the current release, and more recent beta releases, - and have links to older versions, and binary distributions for a variety - of platforms.</p> + <a href="http://httpd.apache.org/download.cgi">Download Page</a>.</p> <h2><a id="intro" name="intro">Introduction</a></h2> diff --git a/usr.sbin/httpd/htdocs/manual/install.html.ja.jis b/usr.sbin/httpd/htdocs/manual/install.html.ja.jis index 70eff7bbd66..26170b179bf 100644 --- a/usr.sbin/httpd/htdocs/manual/install.html.ja.jis +++ b/usr.sbin/httpd/htdocs/manual/install.html.ja.jis @@ -7,7 +7,7 @@ <title>Compiling and Installing Apache</title> </head> - <!-- English revision: 1.39 --> + <!-- English revision: 1.40 --> <!-- Background white, links blue (unvisited), navy (visited), red (active) --> <body bgcolor="#ffffff" text="#000000" link="#0000ff" vlink="#000080" alink="#ff0000"> @@ -56,13 +56,9 @@ <h2><a id="download" name="download">Apache $B$N%@%&%s%m!<%I(B</a></h2> - <p>Apache $B$N:G?7HG$O(B Apache $B%&%'%V%5%$%H(B <a - href="http://www.apache.org/dist/httpd/">http://www.apache.org/dist/httpd/</a> - $B$^$?$O(B <a href="http://www.apache.org/dyn/closer.cgi" - >http://www.apache.org/dyn/closer.cgi</a> - $B$K%j%9%H$5$l$?B?$/$N%_%i!<%5%$%H$+$iD>@\%@%&%s%m!<%I$9$k$3$H$b=PMh$^$9!#(B - $B$3$l$i$N%5%$%H$K$O8=:_$N%j%j!<%9HG$d:G?7$N%Y!<%?HG!"8E$$%P!<%8%g%s$X$N%j%s%/!"(B - $B$$$m$$$m$J%W%i%C%H%[!<%`MQ$N%P%$%J%jG[I[$,%j%9%H$5$l$^$9!#(B</p> + <p>Apache $B$N:G?7HG$O(B <a + href="http://httpd.apache.org/download.cgi">Download Page</a> + $B$+$iD>@\%@%&%s%m!<%I$9$k$3$H$,=PMh$^$9!#(B</p> <h2><a id="intro" name="intro">$BF3F~(B</a></h2> diff --git a/usr.sbin/httpd/htdocs/manual/misc/API.html b/usr.sbin/httpd/htdocs/manual/misc/API.html index a5ad83840f7..15ed67c12ba 100644 --- a/usr.sbin/httpd/htdocs/manual/misc/API.html +++ b/usr.sbin/httpd/htdocs/manual/misc/API.html @@ -496,7 +496,7 @@ int default_handler (request_rec *r) if (r->method_number != M_GET) return DECLINED; if (r->finfo.st_mode == 0) return NOT_FOUND; - if ((errstatus = ap_set_content_length (r, r->finfo.st_size)) { + if ((errstatus = ap_set_content_length (r, r->finfo.st_size))) { return errstatus; } diff --git a/usr.sbin/httpd/htdocs/manual/misc/FAQ.html b/usr.sbin/httpd/htdocs/manual/misc/FAQ.html index e25fe07b58d..ac9d65b5f75 100644 --- a/usr.sbin/httpd/htdocs/manual/misc/FAQ.html +++ b/usr.sbin/httpd/htdocs/manual/misc/FAQ.html @@ -6,7 +6,7 @@ <meta name="generator" content="HTML Tidy, see www.w3.org" /> <title>Apache Server Frequently Asked Questions</title> - + <!--#set var="FAQMASTER" value="YES" --> </head> <!-- Background white, links blue (unvisited), navy (visited), red (active) --> @@ -86,3886 +86,27 @@ <ol type="A"> - - - - - - - - - - - <li value="1"> - <strong>Background</strong> - - <ol> - <li><a href="#what">What is Apache?</a></li> - - <li><a href="#why">How and why was Apache - created?</a></li> - - <li><a href="#name">Why the name "Apache"?</a></li> - - <li><a href="#compare">OK, so how does Apache compare to - other servers?</a></li> - - <li><a href="#tested">How thoroughly tested is - Apache?</a></li> - - <li><a href="#future">What are the future plans for - Apache?</a></li> - - <li><a href="#support">Whom do I contact for - support?</a></li> - - <li><a href="#more">Is there any more information on - Apache?</a></li> - - <li><a href="#where">Where can I get Apache?</a></li> - - <li><a href="#logo">May I use the Apache logo on my - product or Web site?</a></li> - </ol> - </li> - - - - - </body> -</html> - - - - - - - - - - - - - - <li value="2"> - <strong>General Technical Questions</strong> - - <ol> - <li><a href="#what2do">"Why can't I ...? Why won't ... - work?" What to do in case of problems</a></li> - - <li><a href="#compatible">How compatible is Apache with - my existing NCSA 1.3 setup?</a></li> - - <li><a href="#year2000">Is Apache Year 2000 - compliant?</a></li> - - <li><a href="#submit_patch">How do I submit a patch to - the Apache Group?</a></li> - - <li><a href="#domination">Why has Apache stolen my - favourite site's Internet address?</a></li> - - <li><a href="#apspam">Why am I getting spam mail from the - Apache site?</a></li> - - <li><a href="#redist">May I include the Apache software - on a CD or other package I'm distributing?</a></li> - - <li><a href="#zoom">What's the best hardware/operating - system/... How do I get the most out of my Apache Web - server?</a></li> - - <li><a href="#regex">What are "regular - expressions"?</a></li> - - <li><a href="#binaries">Why isn't there a binary for my - platform?</a></li> - </ol> - </li> - - - - - </body> -</html> - - - - - - - - - - - - - - <li value="3"> - <strong>Building Apache</strong> - - <ol> - <li><a href="#bind8.1">Why do I get an error about an - undefined reference to "<samp>__inet_ntoa</samp>" or - other <samp>__inet_*</samp> symbols?</a></li> - - <li><a href="#cantbuild">Why won't Apache compile with my - system's <samp>cc</samp>?</a></li> - - <li><a href="#linuxiovec">Why do I get complaints about - redefinition of "<code>struct iovec</code>" when - compiling under Linux?</a></li> - - <li><a href="#broken-gcc">I'm using gcc and I get some - compilation errors, what is wrong?</a></li> - - <li><a href="#glibc-crypt">I'm using RedHat Linux 5.0, or - some other <samp>glibc</samp>-based Linux system, and I - get errors with the <code>crypt</code> function when I - attempt to build Apache 1.2.</a></li> - </ol> - </li> - - - - - </body> -</html> - - - - - - - - - - - - - - <li value="4"> - <strong>Error Log Messages and Problems Starting - Apache</strong> - - <ol> - <li><a href="#setgid">Why do I get "<samp>setgid: Invalid - argument</samp>" at startup?</a></li> - - <li><a href="#nodelay">Why am I getting "<samp>httpd: - could not set socket option TCP_NODELAY</samp>" in my - error log?</a></li> - - <li><a href="#peerreset">Why am I getting - "<samp>connection reset by peer</samp>" in my error - log?</a></li> - - <li><a href="#wheres-the-dump">The errorlog says Apache - dumped core, but where's the dump file?</a></li> - - <li><a href="#linux-shmget">When I run it under Linux I - get "shmget: function not found", what should I - do?</a></li> - - <li><a href="#nfslocking">Server hangs, or fails to - start, and/or error log fills with "<samp>fcntl: - F_SETLKW: No record locks available</samp>" or similar - messages</a></li> - - <li><a href="#aixccbug">Why am I getting "<samp>Expected - </Directory> but saw </Directory></samp>" - when I try to start Apache?</a></li> - - <li><a href="#redhat">I'm using RedHat Linux and I have - problems with httpd dying randomly or not restarting - properly</a></li> - - <li><a href="#stopping">I upgraded from an Apache version - earlier than 1.2.0 and suddenly I have problems with - Apache dying randomly or not restarting properly</a></li> - - <li><a href="#setservername">When I try to start Apache - from a DOS window, I get a message like "<samp>Cannot - determine host name. Use ServerName directive to set it - manually.</samp>" What does this mean?</a></li> - - <li><a href="#ws2_32dll">When I try to start Apache for - Windows, I get a message like "<samp>Unable To Locate - WS2_32.DLL...</samp>". What should I do?</a></li> - - <li><a href="#WSADuplicateSocket">Apache for Windows does - not start. Error log contains this message "<samp>[crit] - (10045) The attempted operation is not supported for the - type of object referenced: Parent: WSADuplicateSocket - failed for socket ###</samp>". What does this - mean?</a></li> - - <li><a href="#err1067">When I try to start Apache on - Windows, I get a message like "<code>System error 1067 - has occurred. The process terminated - unexpectedly.</code>" What does this mean?</a></li> - - <li><a href="#suseFDN">On a SuSE Linux system, I try and - configure access control using basic authentication. - Although I follow the example exactly, authentication - fails, and an error message "<code>admin: not a valid - FDN: ....</code>" is logged.</a></li> - - <li><a href="#codered">Why do I have weird entries in my - logs asking for <code>default.ida</code> and - <code>cmd.exe</code>?</a></li> - - <li><a href="#restart">Why am I getting server restart - messages periodically, when I did not restart the - server?</a></li> - - <li><a href="#modulemagic">Why am I getting "module - <em>module-name</em> is not compatible with this version of - Apache" messages in my error log?</a></li> - - </ol> - </li> - - - - - </body> -</html> - - - - - - - - - - - - - - <li value="5"> - <strong>Configuration Questions</strong> - - <ol> - <li><a href="#fdlim">Why can't I run more than - <<em>n</em>> virtual hosts?</a></li> - - <li><a href="#freebsd-setsize">Can I increase - <samp>FD_SETSIZE</samp> on FreeBSD?</a></li> - - <li><a href="#errordoc401">Why doesn't my - <code>ErrorDocument 401</code> work?</a></li> - - <li><a href="#cookies1">Why does Apache send a cookie on - every response?</a></li> - - <li><a href="#cookies2">Why don't my cookies work, I even - compiled in <samp>mod_cookies</samp>?</a></li> - - <li><a href="#jdk1-and-http1.1">Why do my Java app[let]s - give me plain text when I request an URL from an Apache - server?</a></li> - - <li><a href="#midi">How do I get Apache to send a MIDI - file so the browser can play it?</a></li> - - <li><a href="#addlog">How do I add browsers and referrers - to my logs?</a></li> - - <li><a href="#set-servername">Why does accessing - directories only work when I include the trailing "/" - (<em>e.g.</em>, <samp>http://foo.domain.com/~user/</samp>) - but not when I omit it - (<em>e.g.</em>, <samp>http://foo.domain.com/~user</samp>)?</a></li> - - <li><a href="#no-info-directives">Why doesn't mod_info - list any directives?</a></li> - - <li><a href="#namevhost">I upgraded to Apache 1.3 and now - my virtual hosts don't work!</a></li> - - <li><a href="#redhat-htm">I'm using RedHat Linux and my - .htm files are showing up as HTML source rather than - being formatted!</a></li> - - <li><a href="#htaccess-work">My <code>.htaccess</code> - files are being ignored.</a></li> - - <li><a href="#forbidden">Why do I get a - "<samp>Forbidden</samp>" message whenever I try to access - a particular directory?</a></li> - - <li><a href="#malfiles">Why do I get a - "<samp>Forbidden/You don't have permission to access / on - this server</samp>" message whenever I try to access my - server?</a></li> - - <li><a href="#ie-ignores-mime">Why do my files appear - correctly in Internet Explorer, but show up as source or - trigger a save window with Netscape; or, Why doesn't - Internet Explorer render my text/plain document - correctly?</a></li> - - <li><a href="#canonical-hostnames">My site is accessible - under many different hostnames; how do I redirect clients - so that they see only a single name?</a></li> - - <li><a href="#firewall">Why can I access my website from the - server or from my local network, but I can't access it from - elsewhere on the Internet?</a></li> - - <li><a href="#indexes">How do I turn automatic directory listings - on or off?</a></li> - - <li><a href="#options">Why do my Options directives not have - the desired effect?</a></li> - - <li><a href="#serverheader">How can I change the information - that Apache returns about itself in the headers?</a></li> - - <li><a href="#proxyscan">Why do I see requests for other sites - appearing in my log files?</a></li> - - </ol> - </li> - - - - - </body> -</html> - - - - - - - - - - - - - - <li value="6"> - <strong>Dynamic Content (CGI and SSI)</strong> - - <ol> - <li><a href="#CGIoutsideScriptAlias">How do I enable CGI - execution in directories other than the - ScriptAlias?</a></li> - - <li><a href="#premature-script-headers">What does it mean - when my CGIs fail with "<samp>Premature end of script - headers</samp>"?</a></li> - - <li><a href="#POSTnotallowed">Why do I keep getting - "Method Not Allowed" for form POST requests?</a></li> - - <li><a href="#nph-scripts">How can I get my script's - output without Apache buffering it? Why doesn't my server - push work?</a></li> - - <li><a href="#cgi-spec">Where can I find the "CGI - specification"?</a></li> - - <li><a href="#fastcgi">Why isn't FastCGI included with - Apache any more?</a></li> - - <li><a href="#ssi-part-i">How do I enable SSI (parsed - HTML)?</a></li> - - <li><a href="#ssi-part-ii">Why don't my parsed files get - cached?</a></li> - - <li><a href="#ssi-part-iii">How can I have my script - output parsed?</a></li> - - <li><a href="#ssi-part-iv">SSIs don't work for - VirtualHosts and/or user home directories</a></li> - - <li><a href="#errordocssi">How can I use - <code>ErrorDocument</code> and SSI to simplify customized - error messages?</a></li> - - <li><a href="#remote-user-var">Why is the environment - variable <samp>REMOTE_USER</samp> not set?</a></li> - - <li><a href="#user-cgi">How do I allow each of my user - directories to have a cgi-bin directory?</a></li> - </ol> - </li> - - - - - </body> -</html> - - - - - - - - - - - - - <li value="7"> - <strong>Authentication and Access Restrictions</strong> - - <ol> - <li><a href="#dnsauth">Why isn't restricting access by - host or domain name working correctly?</a></li> - - <li><a href="#user-authentication">How do I set up Apache - to require a username and password to access certain - documents?</a></li> - - <li><a href="#remote-auth-only">How do I set up Apache to - allow access to certain documents only if a site is - either a local site <em>or</em> the user supplies a - password and username?</a></li> - - <li><a href="#authauthoritative">Why does my - authentication give me a server error?</a></li> - - <li><a href="#auth-on-same-machine">Do I have to keep the - (mSQL) authentication information on the same - machine?</a></li> - - <li><a href="#msql-slow">Why is my mSQL authentication - terribly slow?</a></li> - - <li><a href="#passwdauth">Can I use my - <samp>/etc/passwd</samp> file for Web page - authentication?</a></li> - - <li><a href="#prompted-twice">Why does Apache ask for my - password twice before serving a file?</a></li> - - <li><a href="#image-theft">How can I prevent people from - "stealing" the images from my web site?</a></li> - - </ol> - </li> - - - </body> -</html> - - - - - - - - - - - - - <li value="8"> - <strong>URL Rewriting</strong> - - <ol> - <li><a href="#rewrite-more-config">Where can I find - mod_rewrite rulesets which already solve particular - URL-related problems?</a></li> - - <li><a href="#rewrite-article">Where can I find any - published information about URL-manipulations and - mod_rewrite?</a></li> - - <li><a href="#rewrite-complexity">Why is mod_rewrite so - difficult to learn and seems so complicated?</a></li> - - <li><a href="#rewrite-dontwork">What can I do if my - RewriteRules don't work as expected?</a></li> - - <li><a href="#rewrite-prefixdocroot">Why don't some of my - URLs get prefixed with DocumentRoot when using - mod_rewrite?</a></li> - - <li><a href="#rewrite-nocase">How can I make all my URLs - case-insensitive with mod_rewrite?</a></li> - - <li><a href="#rewrite-virthost">Why are RewriteRules in - my VirtualHost parts ignored?</a></li> - - <li><a href="#rewrite-envwhitespace">How can I use - strings with whitespaces in RewriteRule's ENV - flag?</a></li> - </ol> - </li> - - - </body> -</html> - - - - - - - - - - - - - - <li value="9"> - <strong>Features</strong> - - <ol> - <li><a href="#proxy">Does or will Apache act as a Proxy - server?</a></li> - - <li><a href="#multiviews">What are "multiviews"?</a></li> - - <li><a href="#putsupport">Why can't I publish to my - Apache server using PUT on Netscape Gold and other - programs?</a></li> - - <li><a href="#SSL-i">Why doesn't Apache include - SSL?</a></li> - - <li><a href="#footer">How can I attach a footer to my - documents without using SSI?</a></li> - - <li><a href="#search">Does Apache include a search - engine?</a></li> - - <li><a href="#rotate">How can I rotate my log - files?</a></li> - - <li><a href="#conditional-logging">How do I keep certain - requests from appearing in my logs?</a></li> - - <li><a href="#dbinteg">Does Apache include any sort of - database integration?</a></li> - - <li><a href="#asp">Can I use Active Server Pages (ASP) - with Apache?</a></li> - - <li><a href="#java">Does Apache come with Java - support?</a></li> - </ol> - </li> - - - </body> -</html> - - </ol> <hr /> <h2>The Answers</h2> - - - - - - - - - - - - - <h3>A. Background</h3> - - <ol> - <li> - <a id="what" name="what"><strong>What is - Apache?</strong></a> - - <p>The Apache httpd server</p> - - <ul> - <li>is a powerful, flexible, HTTP/1.1 compliant web - server</li> - - <li>implements the latest protocols, including HTTP/1.1 - (RFC2616)</li> - - <li>is highly configurable and extensible with - third-party modules</li> - - <li>can be customised by writing 'modules' using the - Apache module API</li> - - <li>provides full source code and comes with an - unrestrictive license</li> - - <li>runs on Windows NT/9x, Netware 5.x and above, OS/2, and most - versions of Unix, as well as several other operating - systems</li> - - <li>is actively being developed</li> - - <li>encourages user feedback through new ideas, bug - reports and patches</li> - - <li> - implements many frequently requested features, - including:<br /> - <br /> - - - <dl> - <dt>DBM databases for authentication</dt> - - <dd>allows you to easily set up password-protected - pages with enormous numbers of authorized users, - without bogging down the server.</dd> - - <dt>Customized responses to errors and problems</dt> - - <dd>Allows you to set up files, or even CGI scripts, - which are returned by the server in response to - errors and problems, e.g. setup a script to intercept - <strong>500 Server Error</strong>s and perform - on-the-fly diagnostics for both users and - yourself.</dd> - - <dt>Multiple DirectoryIndex directives</dt> - - <dd>Allows you to say <code>DirectoryIndex index.html - index.cgi</code>, which instructs the server to - either send back <code>index.html</code> or run - <code>index.cgi</code> when a directory URL is - requested, whichever it finds in the directory.</dd> - - <dt>Unlimited flexible URL rewriting and - aliasing</dt> - - <dd>Apache has no fixed limit on the numbers of - Aliases and Redirects which may be declared in the - config files. In addition, a powerful rewriting - engine can be used to solve most URL manipulation - problems.</dd> - - <dt>Content negotiation</dt> - - <dd>i.e. the ability to automatically serve clients - of varying sophistication and HTML level compliance, - with documents which offer the best representation of - information that the client is capable of - accepting.</dd> - - <dt>Virtual Hosts</dt> - - <dd>A much requested feature, sometimes known as - multi-homed servers. This allows the server to - distinguish between requests made to different IP - addresses or names (mapped to the same machine). - Apache also offers dynamically configurable - mass-virtual hosting.</dd> - - <dt>Configurable Reliable Piped Logs</dt> - - <dd>You can configure Apache to generate logs in the - format that you want. In addition, on most Unix - architectures, Apache can send log files to a pipe, - allowing for log rotation, hit filtering, real-time - splitting of multiple vhosts into separate logs, and - asynchronous DNS resolving on the fly.</dd> - </dl> - </li> - </ul> - <hr /> - </li> - - <li> - <a id="why" name="why"><strong>How and why was Apache - created?</strong></a> - - <p>The <a - href="http://httpd.apache.org/ABOUT_APACHE.html">About - Apache</a> document explains how the Apache project evolved - from its beginnings as an outgrowth of the NCSA httpd - project to its current status as one of the fastest, most - efficient, and most functional web servers in - existence.</p> - <hr /> - </li> - - <li> - <a id="name" name="name"><strong>Why the name - "Apache"?</strong></a> - - <p>The name 'Apache' was chosen from respect for - the Native American Indian tribe of Apache (Indé), - <a href="http://www.indians.org/welker/apache.htm">well-known - for their superior skills in warfare strategy and their - inexhaustible endurance</a>. For more information on the - Apache Nation, we suggest searching - <a href="http://www.google.com/search?q=Apache+Nation">Google</a>, - <a href="http://www.northernlight.com/nlquery.fcg?qr=Apache+Nation" - >Northernlight</a>, or - <a href="http://www.alltheweb.com/cgi-bin/asearch?query=Apache+Nation" - >AllTheWeb</a>.</p> - - <p>Secondarily, and more popularly (though incorrectly) accepted, - it's a considered cute name which stuck. Apache is "<strong>A - PA</strong>t<strong>CH</strong>y server". It was based on - some existing code and a series of "patch files".</p> - - <hr /> - </li> - - <li> - <a id="compare" name="compare"><strong>OK, so how does - Apache compare to other servers?</strong></a> - - <p>For an independent assessment, see <a - href="http://webcompare.internet.com/">Web - Compare</a>.</p> - - <p>Apache has been shown to be substantially faster, more - stable, and more feature-full than many other web servers. - Although certain commercial servers have claimed to surpass - Apache's speed (it has not been demonstrated that any of - these "benchmarks" are a good way of measuring WWW server - speed at any rate), we feel that it is better to have a - mostly-fast free server than an extremely-fast server that - costs thousands of dollars. Apache is run on sites that get - millions of hits per day, and they have experienced no - performance difficulties.</p> - <hr /> - </li> - - <li> - <a id="tested" name="tested"><strong>How thoroughly tested - is Apache?</strong></a> - - <p>Apache is run on over 6 million Internet servers (as of - February 2000). It has been tested thoroughly by both - developers and users. The Apache Group maintains rigorous - standards before releasing new versions of their server, - and our server runs without a hitch on over one half of all - WWW servers available on the Internet. When bugs do show - up, we release patches and new versions as soon as they are - available.</p> - <hr /> - </li> - - <li> - <a id="future" name="future"><strong>What are the future - plans for Apache?</strong></a> - - <ul> - <li>to continue to be an "open source" no-charge-for-use - HTTP server,</li> - - <li>to keep up with advances in HTTP protocol and web - developments in general,</li> - - <li>to collect suggestions for fixes/improvements from - its users,</li> - - <li>to respond to needs of large volume providers as well - as occasional users.</li> - </ul> - <hr /> - </li> - - <li> - <a id="support" name="support"><strong>Whom do I contact - for support?</strong></a> - - <p>There is no official support for Apache. None of the - developers want to be swamped by a flood of trivial - questions that can be resolved elsewhere. Bug reports and - suggestions should be sent <em>via</em> <a - href="http://httpd.apache.org/bug_report.html">the bug - report page</a>. Other questions should be directed to the - <a href="http://httpd.apache.org/userslist.html">Apache HTTP - Server Users List</a> or the - <a - href="news:comp.infosystems.www.servers.unix">comp.infosystems.www.servers.unix</a> - or <a - href="news:comp.infosystems.www.servers.ms-windows">comp.infosystems.www.servers.ms-windows</a> - newsgroup (as appropriate for the platform you use), where - some of the Apache team lurk, in the company of many other - httpd gurus who should be able to help.</p> - - <p>Commercial support for Apache is, however, available - from a number of third parties.</p> - <hr /> - </li> - - <li> - <a id="more" name="more"><strong>Is there any more - information available on Apache?</strong></a> - - <p>Indeed there is. See the main <a - href="http://httpd.apache.org/">Apache web site</a>. There - is also a regular electronic publication called <a - href="http://www.apacheweek.com/" rel="Help"><cite>Apache - Week</cite></a> available. Links to relevant <cite>Apache - Week</cite> articles are included below where appropriate. - There are also some <a - href="http://httpd.apache.org/info/apache_books.html">Apache-specific - books</a> available.</p> - <hr /> - </li> - - <li> - <a id="where" name="where"><strong>Where can I get - Apache?</strong></a> - - <p>You can find out how to download the source for Apache - at the project's <a href="http://httpd.apache.org/">main - web page</a>.</p> - <hr /> - </li> - - <li> - <a id="logo" name="logo"><b>May I use the Apache logo on my - product or Web site?</b></a> - - <p>You may <b>NOT</b> use any original artwork from the - Apache Software Foundation, nor make or use modified - versions of such artwork, except under the following - conditions:</p> - - <ul> - <li>You may use the <a - href="../../apache_pb.gif">'Powered by Apache' - graphic</a> on a Web site that is being served by the - Apache HTTP server software.</li> - - <li>You may use the aforementioned 'Powered by Apache' - graphic or the <a - href="http://www.apache.org/images/asf_logo.gif"> - Apache Software Foundation logo</a> in product - description and promotional material <b>IF and ONLY - IF</b> such use can in no way be interpreted as anything - other than an attribution. Using the Apache name and - artwork in a manner that implies endorsement of a product - or service is <b>strictly forbidden</b>.</li> - </ul> - <hr /> - </li> - </ol> - - - </body> -</html> - - - - - - - - - - - - - - - - <h3>B. General Technical Questions</h3> - - <ol> - <li> - <a id="what2do" name="what2do"><strong>"Why can't I ...? - Why won't ... work?" What to do in case of - problems</strong></a> - - <p>If you are having trouble with your Apache server - software, you should take the following steps:</p> - - <ol> - <li> - <strong>Check the errorlog!</strong> - - <p>Apache tries to be helpful when it encounters a - problem. In many cases, it will provide some details by - writing one or messages to the server error log. - Sometimes this is enough for you to diagnose & fix - the problem yourself (such as file permissions or the - like). The default location of the error log is - <samp>/usr/local/apache/logs/error_log</samp>, but see - the <a - href="../mod/core.html#errorlog"><samp>ErrorLog</samp></a> - directive in your config files for the location on your - server.</p> - </li> - - <li> - <strong>Check the <a - href="http://httpd.apache.org/docs/misc/FAQ.html">FAQ</a>!</strong> - - - <p>The latest version of the Apache Frequently-Asked - Questions list can always be found at the main Apache - web site.</p> - </li> - - <li> - <strong>Check the Apache bug database</strong> - - <p>Most problems that get reported to The Apache Group - are recorded in the <a - href="http://bugs.apache.org/">bug database</a>. - <em><strong>Please</strong> check the existing reports, - open <strong>and</strong> closed, before adding - one.</em> If you find that your issue has already been - reported, please <em>don't</em> add a "me, too" report. - If the original report isn't closed yet, we suggest - that you check it periodically. You might also consider - contacting the original submitter, because there may be - an email exchange going on about the issue that isn't - getting recorded in the database.</p> - </li> - - <li> - <strong>Ask in a user support group.</strong> - - <p>A lot of common problems never make it to the bug - database because there's already high Q&A traffic - about them in the <a - href="http://httpd.apache.org/userslist.html">Users - mailing list</a> or <a - href="news:comp.infosystems.www.servers.unix"><samp>comp.infosystems.www.servers.unix</samp></a> - and related newsgroups. These newsgroups are also - available via <a - href="http://groups.google.com/groups?group=comp.infosystems.www.servers"> - Google</a>. Many Apache users, and some of the developers, - can be found roaming their virtual halls, so it is suggested - that you seek wisdom there. The chances are good that - you'll get a faster answer there than from the bug - database, even if you <em>don't</em> see your question - already posted.</p> - </li> - - <li> - <strong>If all else fails, report the problem in the - bug database</strong> - - <p>If you've gone through those steps above that are - appropriate and have obtained no relief, then please - <em>do</em> let The Apache Group know about the problem - by <a - href="http://httpd.apache.org/bug_report.html">logging - a bug report</a>.</p> - - <p>If your problem involves the server crashing and - generating a core dump, please include a backtrace (if - possible). As an example,</p> - - <dl> - <dd><code># cd <em>ServerRoot</em><br /> - # dbx httpd core<br /> - (dbx) where</code></dd> - </dl> - - <p>(Substitute the appropriate locations for your - <samp>ServerRoot</samp> and your <samp>httpd</samp> and - <samp>core</samp> files. You may have to use - <code>gdb</code> instead of <code>dbx</code>.)</p> - </li> - </ol> - <hr /> - </li> - - <li> - <a id="compatible" name="compatible"><strong>How compatible - is Apache with my existing NCSA 1.3 setup?</strong></a> - - <p>Apache attempts to offer all the features and - configuration options of NCSA httpd 1.3, as well as many of - the additional features found in NCSA httpd 1.4 and NCSA - httpd 1.5.</p> - - <p>NCSA httpd appears to be moving toward adding - experimental features which are not generally required at - the moment. Some of the experiments will succeed while - others will inevitably be dropped. The Apache philosophy is - to add what's needed as and when it is needed.</p> - - <p>Friendly interaction between Apache and NCSA developers - should ensure that fundamental feature enhancements stay - consistent between the two servers for the foreseeable - future.</p> - <hr /> - </li> - - <li> - <a id="year2000" name="year2000"><strong>Is Apache Year - 2000 compliant?</strong></a> - - <p>Yes, Apache is Year 2000 compliant.</p> - - <p>Apache internally never stores years as two digits. On - the HTTP protocol level RFC1123-style addresses are - generated which is the only format a HTTP/1.1-compliant - server should generate. To be compatible with older - applications Apache recognizes ANSI C's - <code>asctime()</code> and RFC850-/RFC1036-style date - formats, too. The <code>asctime()</code> format uses - four-digit years, but the RFC850 and RFC1036 date formats - only define a two-digit year. If Apache sees such a date - with a value less than 70 it assumes that the century is - <samp>20</samp> rather than <samp>19</samp>.</p> - - <p>Although Apache is Year 2000 compliant, you may still - get problems if the underlying OS has problems with dates - past year 2000 (<em>e.g.</em>, OS calls which accept or - return year numbers). Most (UNIX) systems store dates - internally as signed 32-bit integers which contain the - number of seconds since 1<sup>st</sup> January 1970, so the - magic boundary to worry about is the year 2038 and not - 2000. But modern operating systems shouldn't cause any - trouble at all.</p> - - <p>Users of Apache 1.2.x should upgrade to a current - version of Apache 1.3 (see <a - href="../new_features_1_3.html#misc">year-2000 improvements - in Apache 1.3</a> for details).</p> - - <p>The Apache HTTP Server project is an open-source - software product of the Apache Software Foundation. The - project and the Foundation <b>cannot</b> offer legal - assurances regarding any suitability of the software for - your application. There are several commercial Apache - support organizations and derivative server products - available that may be able to stand behind the software and - provide you with any assurances you may require. You may - find links to some of these vendors at <samp><<a - href="http://www.apache.org/info/support.cgi">http://www.apache.org/info/support.cgi</a>></samp>.</p> - - <p>The Apache HTTP server software is distributed with the - following disclaimer, found in the software license:</p> -<pre> - THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY - EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE GROUP OR - ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - OF THE POSSIBILITY OF SUCH DAMAGE. - -</pre> - <hr /> - </li> - - <li> - <a id="submit_patch" name="submit_patch"><strong>How do I - submit a patch to the Apache Group?</strong></a> - - <p>The Apache Group encourages patches from outside - developers. There are 2 main "types" of patches: small - bugfixes and general improvements. Bugfixes should be - submitting using the Apache <a - href="http://httpd.apache.org/bug_report.html">bug report - page</a>. Improvements, modifications, and additions should - follow the instructions below.</p> - - <p>In general, the first course of action is to be a member - of the <samp>dev@httpd.apache.org</samp> mailing list. This - indicates to the Group that you are closely following the - latest Apache developments. Your patch file should be - generated using either '<code>diff -c</code>' or - '<code>diff -u</code>' against the latest CVS tree. To - submit your patch, send email to - <samp>dev@httpd.apache.org</samp> with a - <samp>Subject:</samp> line that starts with - <samp>[PATCH]</samp> and includes a general description of - the patch. In the body of the message, the patch should be - clearly described and then included at the end of the - message. If the patch-file is long, you can note a URL to - the file instead of the file itself. Use of MIME - enclosures/attachments should be avoided.</p> - - <p>Be prepared to respond to any questions about your - patches and possibly defend your code. If your patch - results in a lot of discussion, you may be asked to submit - an updated patch that incorporates all changes and - suggestions.</p> - <hr /> - </li> - - <li> - <a id="domination" name="domination"><strong>Why has Apache - stolen my favourite site's Internet address?</strong></a> - - <p>The simple answer is: "It hasn't." This misconception is - usually caused by the site in question having migrated to - the Apache Web server software, but not having migrated the - site's content yet. When Apache is installed, the default - page that gets installed tells the Webmaster the - installation was successful. The expectation is that this - default page will be replaced with the site's real content. - If it doesn't, complain to the Webmaster, not to the Apache - project -- we just make the software and aren't responsible - for what people do (or don't do) with it.</p> - <hr /> - </li> - - <li> - <a id="apspam" name="apspam"><strong>Why am I getting spam - mail from the Apache site?</strong></a> - - <p>The short answer is: "You aren't." Usually when someone - thinks the Apache site is originating spam, it's because - they've traced the spam to a Web site, and the Web site - says it's using Apache. See the <a - href="#domination">previous FAQ entry</a> for more details - on this phenomenon.</p> - - <p>No marketing spam originates from the Apache site. The - only mail that comes from the site goes only to addresses - that have been <em>requested</em> to receive the mail.</p> - <hr /> - </li> - - <li> - <a id="redist" name="redist"><strong>May I include the - Apache software on a CD or other package I'm - distributing?</strong></a> - - <p>The detailed answer to this question can be found in the - Apache license, which is included in the Apache - distribution in the file <code>LICENSE</code>. You can also - find it on the Web at <samp><<a - href="http://www.apache.org/LICENSE.txt">http://www.apache.org/LICENSE.txt</a>></samp>.</p> - <hr /> - </li> - - <li> - <a id="zoom" name="zoom"><strong>What's the best - hardware/operating system/... How do I get the most out of - my Apache Web server?</strong></a> - - <p>Check out Dean Gaudet's <a - href="perf-tuning.html">performance tuning page</a>.</p> - <hr /> - </li> - - <li> - <a id="regex" name="regex"><strong>What are "regular - expressions"?</strong></a> - - <p>Regular expressions are a way of describing a pattern - - for example, "all the words that begin with the letter A" - or "every 10-digit phone number" or even "Every sentence - with two commas in it, and no capital letter Q". Regular - expressions (aka "regex"s) are useful in Apache because - they let you apply certain attributes against collections - of files or resources in very flexible ways - for example, - all .gif and .jpg files under any "images" directory could - be written as /\/images\/.*(jpg|gif)$/.</p> - - <p>The best overview around is probably the one which comes - with Perl. We implement a simple subset of Perl's regex - support, but it's still a good way to learn what they mean. - You can start by going to the <a - href="http://www.perl.com/doc/manual/html/pod/perlre.html">CPAN - page on regular expressions</a>, and branching out from - there.</p> <hr /> - </li> - - <li> - <a id="binaries" name="binaries"><b>Why isn't there a - binary for my platform?</b></a> - - <p>The developers make sure that the software builds and - works correctly on the platforms available to them; this - does <i>not</i> necessarily mean that <i>your</i> platform - is one of them. In addition, the Apache HTTP server project - is primarily source oriented, meaning that distributing - valid and buildable source code is the purpose of a - release, not making sure that there is a binary package for - all of the supported platforms.</p> - - <p>If you don't see a kit for your platform listed in the - binary distribution area (<URL:<a - href="http://httpd.apache.org/dist/httpd/binaries/">http://httpd.apache.org/dist/httpd/binaries/</a>>), - it means either that the platform isn't available to any of - the developers, or that they just haven't gotten around to - preparing a binary for it. As this is a voluntary project, - they are under no obligation to do so. Users are encouraged - and expected to build the software themselves.</p> - - <p>The sole exception to these practices is the Windows - package. Unlike most Unix and Unix-like platforms, Windows - systems do not come with a bundled software development - environment, so we <i>do</i> prepare binary kits for - Windows when we make a release. Again, however, it's a - voluntary thing and only a limited number of the developers - have the capability to build the InstallShield package, so - the Windows release may lag somewhat behind the source - release. This lag should be no more than a few days at - most.</p> - <hr /> - </li> - </ol> - </body> -</html> - - - - - - - - - - - - - - <h3>C. Building Apache</h3> - - <ol> - <li> - <a id="bind8.1" name="bind8.1"><strong>Why do I get an - error about an undefined reference to - "<samp>__inet_ntoa</samp>" or other <samp>__inet_*</samp> - symbols?</strong></a> - - <p>If you have installed <a - href="http://www.isc.org/bind.html">BIND-8</a> then this is - normally due to a conflict between your include files and - your libraries. BIND-8 installs its include files and - libraries <code>/usr/local/include/</code> and - <code>/usr/local/lib/</code>, while the resolver that comes - with your system is probably installed in - <code>/usr/include/</code> and <code>/usr/lib/</code>. If - your system uses the header files in - <code>/usr/local/include/</code> before those in - <code>/usr/include/</code> but you do not use the new - resolver library, then the two versions will conflict.</p> - - <p>To resolve this, you can either make sure you use the - include files and libraries that came with your system or - make sure to use the new include files and libraries. - Adding <code>-lbind</code> to the - <code>EXTRA_LDFLAGS</code> line in your - <samp>Configuration</samp> file, then re-running - <samp>Configure</samp>, should resolve the problem. (Apache - versions 1.2.* and earlier use <code>EXTRA_LFLAGS</code> - instead.)</p> - - <p><strong>Note:</strong>As of BIND 8.1.1, the bind - libraries and files are installed under - <samp>/usr/local/bind</samp> by default, so you should not - run into this problem. Should you want to use the bind - resolvers you'll have to add the following to the - respective lines:</p> - - <dl> - <dd><code>EXTRA_CFLAGS=-I/usr/local/bind/include<br /> - EXTRA_LDFLAGS=-L/usr/local/bind/lib<br /> - EXTRA_LIBS=-lbind</code></dd> - </dl> - <hr /> - </li> - - <li> - <a id="cantbuild" name="cantbuild"><strong>Why won't Apache - compile with my system's <samp>cc</samp>?</strong></a> - - <p>If the server won't compile on your system, it is - probably due to one of the following causes:</p> - - <ul> - <li><strong>The <samp>Configure</samp> script doesn't - recognize your system environment.</strong><br /> - This might be either because it's completely unknown or - because the specific environment (include files, OS - version, <em>et cetera</em>) isn't explicitly handled. If - this happens, you may need to port the server to your OS - yourself.</li> - - <li><strong>Your system's C compiler is - garbage.</strong><br /> - Some operating systems include a default C compiler that - is either not ANSI C-compliant or suffers from other - deficiencies. The usual recommendation in cases like this - is to acquire, install, and use <samp>gcc</samp>.</li> - - <li><strong>Your <samp>include</samp> files may be - confused.</strong><br /> - In some cases, we have found that a compiler - installation or system upgrade has left the C header - files in an inconsistent state. Make sure that your - include directory tree is in sync with the compiler and - the operating system.</li> - - <li><strong>Your operating system or compiler may be out - of revision.</strong><br /> - Software vendors (including those that develop operating - systems) issue new releases for a reason; sometimes to - add functionality, but more often to fix bugs that have - been discovered. Try upgrading your compiler and/or your - operating system.</li> - </ul> - - <p>The Apache Group tests the ability to build the server - on many different platforms. Unfortunately, we can't test - all of the OS platforms there are. If you have verified - that none of the above issues is the cause of your problem, - and it hasn't been reported before, please submit a <a - href="http://httpd.apache.org/bug_report.html">problem - report</a>. Be sure to include <em>complete</em> details, - such as the compiler & OS versions and exact error - messages.</p> - <hr /> - </li> - - <li> - <a id="linuxiovec" name="linuxiovec"><strong>Why do I get - complaints about redefinition of "<code>struct - iovec</code>" when compiling under Linux?</strong></a> - - <p>This is a conflict between your C library includes and - your kernel includes. You need to make sure that the - versions of both are matched properly. There are two - workarounds, either one will solve the problem:</p> - - <ul> - <li>Remove the definition of <code>struct iovec</code> - from your C library includes. It is located in - <code>/usr/include/sys/uio.h</code>. - <strong>Or,</strong></li> - - <li>Add <code>-DNO_WRITEV</code> to the - <code>EXTRA_CFLAGS</code> line in your - <samp>Configuration</samp> and reconfigure/rebuild. This - hurts performance and should only be used as a last - resort.</li> - </ul> - <hr /> - </li> - - <li> - <a id="broken-gcc" name="broken-gcc"><strong>I'm using gcc - and I get some compilation errors, what is - wrong?</strong></a> - - <p>GCC parses your system header files and produces a - modified subset which it uses for compiling. This behavior - ties GCC tightly to the version of your operating system. - So, for example, if you were running IRIX 5.3 when you - built GCC and then upgrade to IRIX 6.2 later, you will have - to rebuild GCC. Similarly for Solaris 2.4, 2.5, or 2.5.1 - when you upgrade to 2.6. Sometimes you can type "gcc -v" - and it will tell you the version of the operating system it - was built against.</p> - - <p>If you fail to do this, then it is very likely that - Apache will fail to build. One of the most common errors is - with <code>readv</code>, <code>writev</code>, or - <code>uio.h</code>. This is <strong>not</strong> a bug with - Apache. You will need to re-install GCC.</p> - <hr /> - </li> - - <li> - <a id="glibc-crypt" name="glibc-crypt"><strong>I'm using - RedHat Linux 5.0, or some other <samp>glibc</samp>-based - Linux system, and I get errors with the <code>crypt</code> - function when I attempt to build Apache 1.2.</strong></a> - - <p><samp>glibc</samp> puts the <code>crypt</code> function - into a separate library. Edit your - <code>src/Configuration</code> file and set this:</p> - - <dl> - <dd><code>EXTRA_LIBS=-lcrypt</code></dd> - </dl> - - <p>Then re-run <samp>src/Configure</samp> and re-execute - the make.</p> - <hr /> - </li> - </ol> - </body> -</html> - - - - - - - - - - - - - - <h3>D. Error Log Messages and Problems Starting Apache</h3> - - <ol> - <li> - <a id="setgid" name="setgid"><strong>Why do I get - "<samp>setgid: Invalid argument</samp>" at - startup?</strong></a> - - <p>Your <a - href="../mod/core.html#group"><samp>Group</samp></a> - directive (probably in <samp>conf/httpd.conf</samp>) needs - to name a group that actually exists in the - <samp>/etc/group</samp> file (or your system's equivalent). - This problem is also frequently seen when a negative number - is used in the <code>Group</code> directive (<em>e.g.</em>, - "<code>Group #-1</code>"). Using a group name -- not - group number -- found in your system's group database - should solve this problem in all cases.</p> - <hr /> - </li> - - <li> - <a id="nodelay" name="nodelay"><strong>Why am I getting - "<samp>httpd: could not set socket option - TCP_NODELAY</samp>" in my error log?</strong></a> - - <p>This message almost always indicates that the client - disconnected before Apache reached the point of calling - <code>setsockopt()</code> for the connection. It shouldn't - occur for more than about 1% of the requests your server - handles, and it's advisory only in any case.</p> - <hr /> - </li> - - <li> - <a id="peerreset" name="peerreset"><strong>Why am I getting - "<samp>connection reset by peer</samp>" in my error - log?</strong></a> - - <p>This is a normal message and nothing about which to be - alarmed. It simply means that the client canceled the - connection before it had been completely set up - such as - by the end-user pressing the "Stop" button. People's - patience being what it is, sites with response-time - problems or slow network links may experience this more - than high capacity ones or those with large pipes to the - network.</p> - <hr /> - </li> - - <li> - <a id="wheres-the-dump" name="wheres-the-dump"><strong>The - errorlog says Apache dumped core, but where's the dump - file?</strong></a> - - <p>In Apache version 1.2, the error log message about - dumped core includes the directory where the dump file - should be located. However, many Unixes do not allow a - process that has called <code>setuid()</code> to dump core - for security reasons; the typical Apache setup has the - server started as root to bind to port 80, after which it - changes UIDs to a non-privileged user to serve - requests.</p> - - <p>Dealing with this is extremely operating - system-specific, and may require rebuilding your system - kernel. Consult your operating system documentation or - vendor for more information about whether your system does - this and how to bypass it. If there <em>is</em> a - documented way of bypassing it, it is recommended that you - bypass it only for the <samp>httpd</samp> server process if - possible.</p> - - <p>The canonical location for Apache's core-dump files is - the <a href="../mod/core.html#serverroot">ServerRoot</a> - directory. As of Apache version 1.3, the location can be - set <em>via</em> the <a - href="../mod/core.html#coredumpdirectory"><samp>CoreDumpDirectory</samp></a> - directive to a different directory. Make sure that this - directory is writable by the user the server runs as (as - opposed to the user the server is <em>started</em> as).</p> - <hr /> - </li> - - <li> - <a id="linux-shmget" name="linux-shmget"><strong>When I run - it under Linux I get "shmget: function not found", what - should I do?</strong></a> - - <p>Your kernel has been built without SysV IPC support. You - will have to rebuild the kernel with that support enabled - (it's under the "General Setup" submenu). Documentation for - kernel building is beyond the scope of this FAQ; you should - consult the <a - href="http://www.redhat.com/mirrors/LDP/HOWTO/Kernel-HOWTO.html"> - Kernel HOWTO</a>, or the documentation provided with your - distribution, or a <a - href="http://www.redhat.com/mirrors/LDP/HOWTO/META-FAQ.html"> - Linux newsgroup/mailing list</a>. As a last-resort - workaround, you can comment out the - <code>#define USE_SHMGET_SCOREBOARD</code> definition - in the <samp>LINUX</samp> section of - <samp>src/conf.h</samp> and rebuild the server (prior to - 1.3b4, simply removing - <code>#define HAVE_SHMGET</code> would have sufficed). - This will produce a server which is slower and less - reliable.</p> - <hr /> - </li> - - <li> - <a id="nfslocking" name="nfslocking"><strong>Server hangs, - or fails to start, and/or error log fills with - "<samp>fcntl: F_SETLKW: No record locks available</samp>" - or similar messages</strong></a> - - <p>These are symptoms of a fine locking problem, which - usually means that the server is trying to use a - synchronization file on an NFS filesystem.</p> - - <p>Because of its parallel-operation model, the Apache Web - server needs to provide some form of synchronization when - accessing certain resources. One of these synchronization - methods involves taking out locks on a file, which means - that the filesystem whereon the lockfile resides must - support locking. In many cases this means it <em>can't</em> - be kept on an NFS-mounted filesystem.</p> - - <p>To cause the Web server to work around the NFS locking - limitations, include a line such as the following in your - server configuration files:</p> - - <dl> - <dd><code>LockFile /var/run/apache-lock</code></dd> - </dl> - - <p>The directory should not be generally writable - (<em>e.g.</em>, don't use <samp>/var/tmp</samp>). See the - <a - href="../mod/core.html#lockfile"><samp>LockFile</samp></a> - documentation for more information.</p> - <hr /> - </li> - - <li> - <a id="aixccbug" name="aixccbug"><strong>Why am I getting - "<samp>Expected </Directory> but saw - </Directory></samp>" when I try to start - Apache?</strong></a> - - <p>This is a known problem with certain versions of the AIX - C compiler. IBM are working on a solution, and the issue is - being tracked by <a - href="http://bugs.apache.org/index/full/2312">problem - report #2312</a>.</p> - <hr /> - </li> - - <li> - <a id="redhat" name="redhat"><strong>I'm using RedHat Linux - and I have problems with httpd dying randomly or not - restarting properly</strong></a> - - <p>RedHat Linux versions 4.x (and possibly earlier) RPMs - contain various nasty scripts which do not stop or restart - Apache properly. These can affect you even if you're not - running the RedHat supplied RPMs.</p> - - <p>If you're using the default install then you're probably - running Apache 1.1.3, which is outdated. From RedHat's ftp - site you can pick up a more recent RPM for Apache 1.2.x. - This will solve one of the problems.</p> - - <p>If you're using a custom built Apache rather than the - RedHat RPMs then you should <code>rpm -e apache</code>. In - particular you want the mildly broken - <code>/etc/logrotate.d/apache</code> script to be removed, - and you want the broken <code>/etc/rc.d/init.d/httpd</code> - (or <code>httpd.init</code>) script to be removed. The - latter is actually fixed by the apache-1.2.5 RPMs but if - you're building your own Apache then you probably don't - want the RedHat files.</p> - - <p>We can't stress enough how important it is for folks, - <em>especially vendors</em> to follow the <a - href="../stopping.html">stopping Apache directions</a> - given in our documentation. In RedHat's defense, the broken - scripts were necessary with Apache 1.1.x because the Linux - support in 1.1.x was very poor, and there were various race - conditions on all platforms. None of this should be - necessary with Apache 1.2 and later.</p> - <hr /> - </li> - - <li> - <a id="stopping" name="stopping"><strong>I upgraded from an - Apache version earlier than 1.2.0 and suddenly I have - problems with Apache dying randomly or not restarting - properly</strong></a> - - <p>You should read <a href="#redhat">the previous note</a> - about problems with RedHat installations. It is entirely - likely that your installation has start/stop/restart - scripts which were built for an earlier version of Apache. - Versions earlier than 1.2.0 had various race conditions - that made it necessary to use <code>kill -9</code> at times - to take out all the httpd servers. But that should not be - necessary any longer. You should follow the <a - href="../stopping.html">directions on how to stop and - restart Apache</a>.</p> - - <p>As of Apache 1.3 there is a script - <code>src/support/apachectl</code> which, after a bit of - customization, is suitable for starting, stopping, and - restarting your server.</p> - <hr /> - </li> - - <li> - <a id="setservername" name="setservername"><b>When I try to - start Apache from a DOS window, I get a message like - "<samp>Cannot determine host name. Use ServerName directive - to set it manually.</samp>" What does this mean?</b></a> - - <p>It means what it says; the Apache software can't - determine the hostname of your system. Edit your - <samp>conf\httpd.conf</samp> file, look for the string - "ServerName", and make sure there's an uncommented - directive such as</p> - - <dl> - <dd><code>ServerName localhost</code></dd> - </dl> - - <p>or</p> - - <dl> - <dd><code>ServerName www.foo.com</code></dd> - </dl> - - <p>in the file. Correct it if there one there with wrong - information, or add one if you don't already have one.</p> - - <p>Also, make sure that your Windows system has DNS - enabled. See the TCP/IP setup component of the Networking - or Internet Options control panel.</p> - - <p>After verifying that DNS is enabled and that you have a - valid hostname in your <samp>ServerName</samp> directive, - try to start the server again.</p> - <hr /> - </li> - - <li> - <a id="ws2_32dll" name="ws2_32dll"><b>When I try to start - Apache for Windows, I get a message like "<samp>Unable To - Locate WS2_32.DLL...</samp>". What should I do?</b></a> - - <p>Short answer: You need to install Winsock 2, available - from <a - href="http://www.microsoft.com/windows95/downloads/">http://www.microsoft.com/windows95/downloads/</a></p> - - <p>Detailed answer: Prior to version 1.3.9, Apache for - Windows used Winsock 1.1. Beginning with version 1.3.9, - Apache began using Winsock 2 features (specifically, - WSADuplicateSocket()). WS2_32.DLL implements the Winsock 2 - API. Winsock 2 ships with Windows NT 4.0 and Windows 98. - Some of the earlier releases of Windows 95 did not include - Winsock 2.</p> - <hr /> - </li> - - <li> - <a id="WSADuplicateSocket" - name="WSADuplicateSocket"><b>Apache for Windows does not - start. Error log contains this message: "<samp>[crit] - (10045) The attempted operation is not supported for the - type of object referenced: Parent: WSADuplicateSocket - failed for socket ###</samp>". What does this mean?</b></a> - - - <p>We have seen this problem when Apache is run on systems - along with Virtual Private Networking clients like Aventail - Connect. Aventail Connect is a Layered Service Provider - (LSP) that inserts itself, as a "shim," between the Winsock - 2 API and Window's native Winsock 2 implementation. The - Aventail Connect shim does not implement - WSADuplicateSocket, which is the cause of the failure.</p> - - <p>The shim is not unloaded when Aventail Connect is shut - down. Once observed, the problem persists until the shim is - either explicitly unloaded or the machine is rebooted. - Another potential solution (not tested) is to add - <code>apache.exe</code> to the Aventail "Connect Exclusion - List".</p> - - <p>Apache is affected in a similar way by <em>any</em> - firewall program that isn't correctly configured. Assure - you exclude your Apache server ports (usually port 80) from - the list of ports to block. Refer to your firewall - program's documentation for the how-to.</p> - <hr /> - </li> - - <li> - <a id="err1067" name="err1067"><b>When I try to start - Apache on Windows, I get a message like "<code>System error - 1067 has occurred. The process terminated - unexpectedly</code>." What does this mean?</b></a> - - <p>This message means that the Web server was unable to - start correctly for one reason or another. To find out why, - execute the following commands in a DOS window:</p> -<pre> - c: - cd "\Program Files\Apache Group\Apache" - apache - -</pre> - - <p>(If you don't get the prompt back, hit Control-C to - cause Apache to exit.)</p> - - <p>The error you see will probably be one of those - preceding this question in the FAQ.</p> - - <p>As of Apache 1.3.14, first check the Windows NT Event - Log for Application errors using the Windows NT/2000 Event - Viewer program. Any errors that occur prior to opening the - Apache error log will be stored here, if Apache is run as a - Service on NT or 2000. As with any error, also check your - Apache error log.</p> - <hr /> - </li> - - <li><a id="suseFDN" name="suseFDN"><b>On a SuSE Linux system, I try and - configure access control using basic authentication. - Although I follow the example exactly, authentication - fails, and an error message "<code>admin: not a valid - FDN: ....</code>" is logged.</b></a> - - <p> - In the SuSE distribution, additional 3rd party authentication - modules have been added and activated by default. These modules - interfere with the Apache standard modules and cause Basic - authentication to fail. Our recommendation is to comment all - those modules in <code>/etc/httpd/suse_addmodule.conf</code> - and <code>/etc/httpd/suse_loadmodule.conf</code> which are not - actually required for running your server. - </p><hr /> - </li> - - <li><a id="codered" name="codered"><b>Why do I have weird entries in my - logs asking for <code>default.ida</code> and - <code>cmd.exe</code>?</b></a> - - <p>The host requesting pages from your website and creating - those entries is a Windows machine running IIS that has been - infected by an Internet worm such as Nimda or Code Red. You - can safely ignore these error messages as they do not affect - Apache. ApacheWeek has an <a - href="http://www.apacheweek.com/features/codered">article</a> - with more information.</p><hr /> - </li> - - <li><a id="restart" name="restart"><b>Why am I getting server restart - messages periodically, when I did not restart the server?</b></a> - - <p>Problem: You are noticing restart messages in your error log, - periodically, when you know you did not restart the server - yourself:</p> - -<pre> -[Thu Jun 6 04:02:01 2002] [notice] SIGHUP received. Attempting to restart -[Thu Jun 6 04:02:02 2002] [notice] Apache configured -- resuming normal operations -</pre> - - <p>Check your cron jobs to see when/if your server logs are being - rotated. Compare the time of rotation to the error message time. - If they are the same, you can somewhat safely assume that the - restart is due to your server logs being rotated.</p><hr /> - </li> - - <li><a id="modulemagic" name="modulemagic"><b>Why am I getting - "module <em>module-name</em> is not compatible with this version - of Apache" messages in my error log?</b></a> - - <p>Module Magic Number (MMN) is a constant defined in Apache - source that is associated with binary compatibility of - modules. It is changed when internal Apache structures, - function calls and other significant parts of API change in - such a way that binary compatibility cannot be guaranteed any - more. On MMN change, all third party modules have to be at - least recompiled, sometimes even slightly changed in order - to work with the new version of Apache.</p> - - <p>If you're getting the above error messages, contact the - vendor of the module for the new binary, or compile it if - you have access to the source code.</p><hr /> - </li> - - </ol> - - - </body> -</html> - - - - - - - - - - - - - - - - <h3>E. Configuration Questions</h3> - - <ol> - <li> - <a id="fdlim" name="fdlim"><strong>Why can't I run more - than <<em>n</em>> virtual hosts?</strong></a> - - <p>You are probably running into resource limitations in - your operating system. The most common limitation is the - <em>per</em>-process limit on <strong>file - descriptors</strong>, which is almost always the cause of - problems seen when adding virtual hosts. Apache often does - not give an intuitive error message because it is normally - some library routine (such as <code>gethostbyname()</code>) - which needs file descriptors and doesn't complain - intelligibly when it can't get them.</p> - - <p>Each log file requires a file descriptor, which means - that if you are using separate access and error logs for - each virtual host, each virtual host needs two file - descriptors. Each <a - href="../mod/core.html#listen"><samp>Listen</samp></a> - directive also needs a file descriptor.</p> - - <p>Typical values for <<em>n</em>> that we've seen - are in the neighborhood of 128 or 250. When the server - bumps into the file descriptor limit, it may dump core with - a SIGSEGV, it might just hang, or it may limp along and - you'll see (possibly meaningful) errors in the error log. - One common problem that occurs when you run into a file - descriptor limit is that CGI scripts stop being executed - properly.</p> - - <p>As to what you can do about this:</p> - - <ol> - <li>Reduce the number of <a - href="../mod/core.html#listen"><samp>Listen</samp></a> - directives. If there are no other servers running on the - machine on the same port then you normally don't need any - Listen directives at all. By default Apache listens to - all addresses on port 80.</li> - - <li>Reduce the number of log files. You can use <a - href="../mod/mod_log_config.html"><samp>mod_log_config</samp></a> - to log all requests to a single log file while including - the name of the virtual host in the log file. You can - then write a script to split the logfile into separate - files later if necessary. Such a script is provided with - the Apache 1.3 distribution in the - <samp>src/support/split-logfile</samp> file.</li> - - <li> - Increase the number of file descriptors available to - the server (see your system's documentation on the - <code>limit</code> or <code>ulimit</code> commands). - For some systems, information on how to do this is - available in the <a href="perf.html">performance - hints</a> page. There is a specific note for <a - href="#freebsd-setsize">FreeBSD</a> below. - - <p>For Windows 95, try modifying your - <samp>C:\CONFIG.SYS</samp> file to include a line - like</p> - - <dl> - <dd><code>FILES=300</code></dd> - </dl> - - <p>Remember that you'll need to reboot your Windows 95 - system in order for the new value to take effect.</p> - </li> - - <li>"Don't do that" - try to run with fewer virtual - hosts</li> - - <li>Spread your operation across multiple server - processes (using <a - href="../mod/core.html#listen"><samp>Listen</samp></a> - for example, but see the first point) and/or ports.</li> - </ol> - - <p>Since this is an operating-system limitation, there's - not much else available in the way of solutions.</p> - - <p>As of 1.2.1 we have made attempts to work around various - limitations involving running with many descriptors. <a - href="descriptors.html">More information is - available.</a></p> - <hr /> - </li> - - <li> - <a id="freebsd-setsize" name="freebsd-setsize"><strong>Can - I increase <samp>FD_SETSIZE</samp> on FreeBSD?</strong></a> - - - <p>On versions of FreeBSD before 3.0, the - <samp>FD_SETSIZE</samp> define defaults to 256. This means - that you will have trouble usefully using more than 256 - file descriptors in Apache. This can be increased, but - doing so can be tricky.</p> - - <p>If you are using a version prior to 2.2, you need to - recompile your kernel with a larger - <samp>FD_SETSIZE</samp>. This can be done by adding a line - such as:</p> - - <dl> - <dd><code>options FD_SETSIZE <em>nnn</em></code></dd> - </dl> - - <p>to your kernel config file. Starting at version 2.2, - this is no longer necessary.</p> - - <p>If you are using a version of 2.1-stable from after - 1997/03/10 or 2.2 or 3.0-current from before 1997/06/28, - there is a limit in the resolver library that prevents it - from using more file descriptors than what - <samp>FD_SETSIZE</samp> is set to when libc is compiled. To - increase this, you have to recompile libc with a higher - <samp>FD_SETSIZE</samp>.</p> - - <p>In FreeBSD 3.0, the default <samp>FD_SETSIZE</samp> has - been increased to 1024 and the above limitation in the - resolver library has been removed.</p> - - <p>After you deal with the appropriate changes above, you - can increase the setting of <samp>FD_SETSIZE</samp> at - Apache compilation time by adding - "<samp>-DFD_SETSIZE=<em>nnn</em></samp>" to the - <samp>EXTRA_CFLAGS</samp> line in your - <samp>Configuration</samp> file.</p> - <hr /> - </li> - - <li> - <a id="errordoc401" name="errordoc401"><strong>Why doesn't - my <code>ErrorDocument 401</code> work?</strong></a> - - <p>You need to use it with a URL in the form - "<samp>/foo/bar</samp>" and not one with a method and - hostname such as "<samp>http://host/foo/bar</samp>". See - the <a - href="../mod/core.html#errordocument"><samp>ErrorDocument</samp></a> - documentation for details. This was incorrectly documented - in the past.</p> - <hr /> - </li> - - <li> - <a id="cookies1" name="cookies1"><strong>Why does Apache - send a cookie on every response?</strong></a> - - <p>Apache does <em>not</em> automatically send a cookie on - every response, unless you have re-compiled it with the <a - href="../mod/mod_usertrack.html"><samp>mod_usertrack</samp></a> - module, and specifically enabled it with the <a - href="../mod/mod_usertrack.html#cookietracking"><samp>CookieTracking</samp></a> - directive. This module has been in Apache since version - 1.2. This module may help track users, and uses cookies to - do this. If you are not using the data generated by - <samp>mod_usertrack</samp>, do not compile it into - Apache.</p> - <hr /> - </li> - - <li> - <a id="cookies2" name="cookies2"><strong>Why don't my - cookies work, I even compiled in - <samp>mod_cookies</samp>?</strong></a> - - <p>Firstly, you do <em>not</em> need to compile in - <samp>mod_cookies</samp> in order for your scripts to work - (see the <a href="#cookies1">previous question</a> for more - about <samp>mod_cookies</samp>). Apache passes on your - <samp>Set-Cookie</samp> header fine, with or without this - module. If cookies do not work it will be because your - script does not work properly or your browser does not use - cookies or is not set-up to accept them.</p> - <hr /> - </li> - - <li> - <a id="jdk1-and-http1.1" - name="jdk1-and-http1.1"><strong>Why do my Java app[let]s - give me plain text when I request an URL from an Apache - server?</strong></a> - - <p>As of version 1.2, Apache is an HTTP/1.1 (HyperText - Transfer Protocol version 1.1) server. This fact is - reflected in the protocol version that's included in the - response headers sent to a client when processing a - request. Unfortunately, low-level Web access classes - included in the Java Development Kit (JDK) version 1.0.2 - expect to see the version string "HTTP/1.0" and do not - correctly interpret the "HTTP/1.1" value Apache is sending - (this part of the response is a declaration of what the - server can do rather than a declaration of the dialect of - the response). The result is that the JDK methods do not - correctly parse the headers, and include them with the - document content by mistake.</p> - - <p>This is definitely a bug in the JDK 1.0.2 foundation - classes from Sun, and it has been fixed in version 1.1. - However, the classes in question are part of the virtual - machine environment, which means they're part of the Web - browser (if Java-enabled) or the Java environment on the - client system - so even if you develop <em>your</em> - classes with a recent JDK, the eventual users might - encounter the problem. The classes involved are replaceable - by vendors implementing the Java virtual machine - environment, and so even those that are based upon the - 1.0.2 version may not have this problem.</p> - - <p>In the meantime, a workaround is to tell Apache to - "fake" an HTTP/1.0 response to requests that come from the - JDK methods; this can be done by including a line such as - the following in your server configuration files:</p> - - <dl> - <dd><code>BrowserMatch Java1.0 force-response-1.0<br /> - BrowserMatch JDK/1.0 force-response-1.0</code></dd> - </dl> - - <p>More information about this issue can be found in the <a - href="http://httpd.apache.org/info/jdk-102.html"><cite>Java - and HTTP/1.1</cite></a> page at the Apache web site.</p> - <hr /> - </li> - - <li> - <a id="midi" name="midi"><strong>How do I get Apache to - send a MIDI file so the browser can play it?</strong></a> - - <p>Even though the registered MIME type for MIDI files is - <samp>audio/midi</samp>, some browsers are not set up to - recognize it as such; instead, they look for - <samp>audio/x-midi</samp>. There are two things you can do - to address this:</p> - - <ol> - <li>Configure your browser to treat documents of type - <samp>audio/midi</samp> correctly. This is the type that - Apache sends by default. This may not be workable, - however, if you have many client installations to change, - or if some or many of the clients are not under your - control.</li> - - <li> - Instruct Apache to send a different - <samp>Content-type</samp> header for these files by - adding the following line to your server's - configuration files: - - <dl> - <dd><code>AddType audio/x-midi .mid .midi - .kar</code></dd> - </dl> - - <p>Note that this may break browsers that <em>do</em> - recognize the <samp>audio/midi</samp> MIME type unless - they're prepared to also handle - <samp>audio/x-midi</samp> the same way.</p> - </li> - </ol> - <hr /> - </li> - - <li> - <a id="addlog" name="addlog"><strong>How do I add browsers - and referrers to my logs?</strong></a> - - <p>Apache provides a couple of different ways of doing - this. The recommended method is to compile the <a - href="../mod/mod_log_config.html"><samp>mod_log_config</samp></a> - module into your configuration and use the <a - href="../mod/mod_log_config.html#customlog"><samp>CustomLog</samp></a> - directive.</p> - - <p>You can either log the additional information in files - other than your normal transfer log, or you can add them to - the records already being written. For example:</p> - - <p> - <code>CustomLog logs/access_log "%h %l %u %t \"%r\" %s %b \"%{Referer}i\" \"%{User-Agent}i\""</code></p> - - <p>This will add the values of the <samp>User-agent:</samp> - and <samp>Referer:</samp> headers, which indicate the - client and the referring page, respectively, to the end of - each line in the access log.</p> - - <p>You may want to check out the <cite>Apache Week</cite> - article entitled: "<a - href="http://www.apacheweek.com/features/logfiles" - rel="Help"><cite>Gathering Visitor Information: Customizing - Your Logfiles</cite></a>".</p> - <hr /> - </li> - - <li> - <a id="set-servername" name="set-servername"><strong>Why - does accessing directories only work when I include the - trailing "/" - (<em>e.g.</em>, <samp>http://foo.domain.com/~user/</samp>) - but not when I omit it - (<em>e.g.</em>, <samp>http://foo.domain.com/~user</samp>)?</strong></a> - - - <p>When you access a directory without a trailing "/", - Apache needs to send what is called a redirect to the - client to tell it to add the trailing slash. If it did not - do so, relative URLs would not work properly. When it sends - the redirect, it needs to know the name of the server so - that it can include it in the redirect. There are two ways - for Apache to find this out; either it can guess, or you - can tell it. If your DNS is configured correctly, it can - normally guess without any problems. If it is not, however, - then you need to tell it.</p> - - <p>Add a <a - href="../mod/core.html#servername">ServerName</a> directive - to the config file to tell it what the domain name of the - server is.</p> - - <p>The other thing that can occasionally cause this symptom is a - misunderstanding of the <a - href="../mod/mod_alias.html#alias">Alias</a> directive, - resulting in an alias working with a trailing slash, and not - without one. The <code>Alias</code> directive is very literal, - and aliases what you tell it to. Consider the following - example:</p> - - <pre> - Alias /example/ /home/www/example/ - </pre> - - <p>The above directive creates an alias for URLs starting with - <code>/example/</code>, but does <em>not</em> alias URLs - starting with <code>/example</code>. That is to say, a URL such - as <code>http://servername.com/example/</code> will get the - desired content, but a URL such as - <code>http://servername.com/example</code> will result in a - "file not found" error.</p> - - <p>The following <code>Alias</code>, on the other hand, will - work for both cases:</p> - - <pre> - Alias /example /home/www/example - </pre> - - <hr /> - </li> - - <li> - <a id="no-info-directives" - name="no-info-directives"><strong>Why doesn't mod_info list - any directives?</strong></a> - - <p>The <a - href="../mod/mod_info.html"><samp>mod_info</samp></a> - module allows you to use a Web browser to see how your - server is configured. Among the information it displays is - the list modules and their configuration directives. The - "current" values for the directives are not necessarily - those of the running server; they are extracted from the - configuration files themselves at the time of the request. - If the files have been changed since the server was last - reloaded, the display will not match the values actively in - use. If the files and the path to the files are not - readable by the user as which the server is running (see - the <a href="../mod/core.html#user"><samp>User</samp></a> - directive), then <samp>mod_info</samp> cannot read them in - order to list their values. An entry <em>will</em> be made - in the error log in this event, however.</p> - <hr /> - </li> - - <li> - <a id="namevhost" name="namevhost"><strong>I upgraded to - Apache 1.3 and now my virtual hosts don't - work!</strong></a> - - <p>In versions of Apache prior to 1.3b2, there was a lot of - confusion regarding address-based virtual hosts and - (HTTP/1.1) name-based virtual hosts, and the rules - concerning how the server processed - <samp><VirtualHost></samp> definitions were very - complex and not well documented.</p> - - <p>Apache 1.3b2 introduced a new directive, <a - href="../mod/core.html#namevirtualhost"><samp>NameVirtualHost</samp></a>, - which simplifies the rules quite a bit. However, changing - the rules like this means that your existing name-based - <samp><VirtualHost></samp> containers probably won't - work correctly immediately following the upgrade.</p> - - <p>To correct this problem, add the following line to the - beginning of your server configuration file, before - defining any virtual hosts:</p> - - <dl> - <dd><code>NameVirtualHost <em>n.n.n.n</em></code></dd> - </dl> - - <p>Replace the "<samp>n.n.n.n</samp>" with the IP address - to which the name-based virtual host names resolve; if you - have multiple name-based hosts on multiple addresses, - repeat the directive for each address.</p> - - <p>Make sure that your name-based - <samp><VirtualHost></samp> blocks contain - <samp>ServerName</samp> and possibly - <samp>ServerAlias</samp> directives so Apache can be sure - to tell them apart correctly.</p> - - <p>Please see the <a href="../vhosts/">Apache Virtual Host - documentation</a> for further details about - configuration.</p> - <hr /> - </li> - - <li> - <a id="redhat-htm" name="redhat-htm"><strong>I'm using - RedHat Linux and my .htm files are showing up as HTML - source rather than being formatted!</strong></a> - - <p>RedHat messed up and forgot to put a content type for - <code>.htm</code> files into <code>/etc/mime.types</code>. - Edit <code>/etc/mime.types</code>, find the line containing - <code>html</code> and add <code>htm</code> to it. Then - restart your httpd server:</p> - - <dl> - <dd><code>kill -HUP `cat /var/run/httpd.pid`</code></dd> - </dl> - - <p>Then <strong>clear your browsers' caches</strong>. (Many - browsers won't re-examine the content type after they've - reloaded a page.)</p> - <hr /> - </li> - - <li> - <a id="htaccess-work" name="htaccess-work"><strong>My - <code>.htaccess</code> files are being - ignored.</strong></a> - - <p>This is almost always due to your <a - href="../mod/core.html#allowoverride">AllowOverride</a> - directive being set incorrectly for the directory in - question. If it is set to <code>None</code> then .htaccess - files will not even be looked for. If you do have one that - is set, then be certain it covers the directory you are - trying to use the .htaccess file in. This is normally - accomplished by ensuring it is inside the proper <a - href="../mod/core.html#directory">Directory</a> - container.</p> - <hr /> - </li> - - <li> - <a id="forbidden" name="forbidden"><strong>Why do I get a - "<samp>Forbidden</samp>" message whenever I try to access a - particular directory?</strong></a> - - <p>This message is generally caused because either</p> - - <ul> - <li>The underlying file system permissions do not allow - the User/Group under which Apache is running to access - the necessary files; or</li> - - <li>The Apache configuration has some access restrictions - in place which forbid access to the files.</li> - </ul> - - <p>You can determine which case applies to your situation - by checking the error log.</p> - - <p>In the case where file system permission are at fault, - remember that not only must the directory and files in - question be readable, but also all parent directories must - be at least searchable by the web server in order for the - content to be accessible.</p> - <hr /> - </li> - - <li> - <a id="malfiles" name="malfiles"><b>Why do I get a - "<samp>Forbidden/You don't have permission to access / on - this server</samp>" message whenever I try to access my - server?</b></a> - - <p>Search your <code>conf/httpd.conf</code> file for this - exact string: <code><Files ~></code>. If you find it, - that's your problem -- that particular <Files> - container is malformed. Delete it or replace it with - <code><Files ~ "^\.ht"></code> and restart your - server and things should work as expected.</p> - - <p>This error appears to be caused by a problem with the - version of linuxconf distributed with Redhat 6.x. It may - reappear if you use linuxconf again.</p> - - <p>If you don't find this string, check out the <a - href="#forbidden">previous question</a>.</p> - <hr /> - </li> - - <li> - <a id="ie-ignores-mime" name="ie-ignores-mime"><strong>Why - do my files appear correctly in Internet Explorer, but show - up as source or trigger a save window with - Netscape; or, Why doesn't Internet Explorer render - my text/plain document correctly?</strong></a> - - <p>MS Internet Explorer (MSIE) and Netscape handle mime type - detection in different ways, and therefore will display the - document differently. In particular, IE sometimes relies on - the file extension or the contents of the file to determine - the mime type. This can happen when the server specifies a - mime type of <code>application/octet-stream</code> or - <code>text/plain</code>. This behavior violates the the HTTP - standard and makes it impossible to deliver plain text - documents to MSIE clients in some cases. More details are - available on MSIE's mime type detection behavior in an <a - href="http://msdn.microsoft.com/workshop/networking/moniker/overview/appendix_a.asp"> - MSDN article</a> and a <a - href="http://ppewww.ph.gla.ac.uk/~flavell/www/content-type.html">note</a> - by Alan J. Flavell.</p> - - <p>The best you can do as a server administrator is to - accurately configure the mime type of your documents by editing - the <code>mime.types</code> file or using an <a - href="../mod/mod_mime.html#addtype"><code>AddType</code></a> - directive in the Apache configuration files. In some cases, - you may be able to fool MSIE into rendering text/plain documents - correctly by assuring they have a <code>.txt</code> filename - extension, but this will not work if MSIE thinks the content - looks like another file type. -</p> <hr /> - </li> - <li> - <a name="canonical-hostnames"><strong>My site is accessible - under many different hostnames; how do I redirect clients - so that they see only a single name?</strong></a> - - <p>Many sites map a variety of hostnames to the same content. - For example, <code>www.example.com</code>, - <code>example.com</code> and <code>www.example.net</code> may - all refer to the same site. It is best to make sure that, - regardless of the name clients use to access the site, they - will be redirected to a single, canonical hostname. This - makes the site easier to maintain and assures that there will - be only one version of the site in proxy caches and search - engines.</p> - - <p>There are two techniques to implement canonical hostnames:</p> - - <ol> - <li>Use <a href="../mod/mod_rewrite.html">mod_rewrite</a> - as described in the "Canonical Hostnames" section of the - <a href="rewriteguide.html">URL Rewriting Guide</a>.</li> - - <li>Use <a href="../vhosts/name-based.html">name-based - virtual hosting</a>: - -<blockquote><code> -NameVirtualHost *<br /> -<br /> -<VirtualHost *><br /> - ServerName www.example.net<br /> - ServerAlias example.com<br /> - Redirect permanent / http://www.example.com/<br /> -</VirtualHost><br /> -<br /> -<VirtualHost *><br /> - ServerName www.example.com<br /> - DocumentRoot /usr/local/apache/htdocs<br /> -</VirtualHost> -</code></blockquote> - </li></ol> - <hr /></li> - - <li><a id="firewall" name="firewall"><strong>Why can I access my - website from the server or from my local network, but I - can't access it from elsewhere on the Internet?</strong></a> - - <p>There are many possible reasons for this, and almost all - of them are related to the configuration of your network, not - the configuration of the Apache HTTP Server. One of the most - common problems is that a firewall blocks access to the - default HTTP port 80. In particular, many consumer ISPs - block access to this port. You can see if this is the case - by changing any <code>Port</code> and <code>Listen</code> - directives in <code>httpd.conf</code> to use port 8000 and - then request your site using - <code>http://yourhost.example.com:8000/</code>. (Of course, - a very restrictive firewall may block this port as well.)</p> - - <hr /></li> - - <li><a id="indexes" name="indexes"><strong>How do I turn automatic - directory listings on or off?</strong></a> - - <p>If a client requests a URL that designates a directory and - the directory does not contain a filename that matches the <a - href="../mod/mod_dir.html#directoryindex">DirectoryIndex</a> - directive, then <a - href="../mod/mod_autoindex.html">mod_autoindex</a> can be - configured to present a listing of the directory contents.</p> - - <p>To turn on automatic directory indexing, find the - <a href="../mod/core.html#options">Options</a> directive that - applies to the directory and add the <code>Indexes</code> - keyword. For example:</p> - - <blockquote><code> - <Directory /path/to/directory><br /> - Options +Indexes<br /> - </Directory> - </code></blockquote> - - <p>To turn off automatic directory indexing, remove - the <code>Indexes</code> keyword from the appropriate - <code>Options</code> line. To turn off directory listing - for a particular subdirectory, you can use - <code>Options -Indexes</code>. For example:</p> - - <blockquote><code> - <Directory /path/to/directory><br /> - Options -Indexes<br /> - </Directory> - </code></blockquote> - - <hr /></li> - - <li><a id="options" name="options"><strong>Why do my Options - directives not have the desired effect?</strong></a> - - <p>Directives placed in the configuration files are applied - in a very particular order, as described by <a - href="../sections.html">How Directory, Location, and Files - sections work</a>. In addition, each <a - href="../mod/core.html#options">Options</a> directive has the - effect of resetting the options to <code>none</code> before - adding the specified options (unless only "+" and "-" options - are used). The consequence is that <code>Options</code> set - in the main server or virtual host context (outside any - directory, location, or files section) will usually have no - effect, because they are overridden by more specific - <code>Options</code> directives. For example, in the following</p> - -<blockquote><code> -<Directory /usr/local/apache/htdocs><br /> - Options Indexes<br /> -</Directory><br /> -Options Includes ExecCGI<br /> -</code></blockquote> - - <p><code>Includes</code> and <code>ExecCGI</code> will be - <strong>off</strong> in the <code>/usr/local/apache/htdocs</code> - directory.</p> - - <p>You can usually avoid problems by either finding the - <code>Options</code> directive that already applies to a - specific directory and changing it, or by putting your - <code>Options</code> directive inside the most specific possible - <code><Directory></code> section.</p> - - <hr /></li> - - - <li><a id="serverheader" name="serverheader"><strong>How can I change - the information that Apache returns about itself in the - headers?</strong></a> - - <p>When a client connects to Apache, part of the information returned in - the headers is the name "Apache" Additional information that can be sent - is the version number, such as "1.3.26", the operating system, and a - list of non-standard modules you have installed.</p> - - <p>For example:</p> - -<blockquote><code> -Server: Apache/1.3.26 (Unix) mod_perl/1.26 -</code></blockquote> - - <p>Frequently, people want to remove this information, under the mistaken - understanding that this will make the system more secure. This is - probably not the case, as the same exploits will likely be attempted - regardless of the header information you provide.</p> - - <p>There are, however, two answers to this question: the correct answer, - and the answer that you are probably looking for.</p> - - <p>The correct answer to this question is that you should use the - ServerTokens directive to alter the quantity of information which is - passed in the headers. Setting this directive to <code>Prod</code> will - pass the least possible amount of information:</p> - -<blockquote><code> -Server: Apache -</code></blockquote> - - <p>The answer you are probably looking for is how to make Apache lie - about what what it is, ie send something like:</p> - -<blockquote><code> -Server: Bob's Happy HTTPd Server -</code></blockquote> - - <p>In order to do this, you will need to modify the Apache source code and - rebuild Apache. This is not advised, as it is almost certain not to - provide you with the added security you think that you are gaining. The - exact method of doing this is left as an exercise for the reader, as we - are not keen on helping you do something that is intrinsically a bad - idea.</p> - - <hr /></li> - - <li><a id="proxyscan" name="proxyscan"><strong>Why do I see requests - for other sites appearing in my log files?</strong></a> - - <p>A an access_log entry showing this situation could look - like this:</p> - - <blockquote><code> 63.251.56.142 - - - [25/Jul/2002:12:48:04 -0700] "GET http://www.yahoo.com/ - HTTP/1.0" 200 1456 </code></blockquote> - - <p>The question is: why did a request for - <code>www.yahoo.com</code> come to your server instead of - Yahoo's server? And why does the response have a status - code of 200 (success)?</p> - - <p>This is usually the result of malicious clients trying to - exploit open proxy servers to access a website without - revealing their true location. If you find entries like this - in your log, the first thing to do is to make sure you have - properly configured your server not to proxy for unknown - clients. If you don't need to provide a proxy server at all, - you should simply assure that the <a - href="../mod/mod_proxy.html#proxyrequests">ProxyRequests</a> - directive is <strong>not</strong> set <code>on</code>. - If you do need to run a proxy server, then you must ensure - that you <a href="../mod/mod_proxy.html#access">secure your - server properly</a> so that only authorized clients can use - it.</p> - - <p>If your server is configured properly, then the attempt to - proxy through your server will fail. If you see a status - code of <code>404</code> (file not found) in the log, then - you know that the request failed. If you see a status code - of <code>200</code> (success), that does not necessarily mean - that the attempt to proxy succeeded. RFC2616 section 5.1.2 - mandates that Apache must accept requests with absolute URLs - in the request-URI, even for non-proxy requests. Since - Apache has no way to know all the different names that your - server may be known under, it cannot simply reject hostnames - it does not recognize. Instead, it will serve requests for - unknown sites locally by stripping off the hostname and using - the default server or virtual host. Therefore you can - compare the size of the file (1456 in the above example) to - the size of the corresponding file in your default server. - If they are the same, then the proxy attempt failed, since a - document from your server was delivered, not a document from - <code>www.yahoo.com</code>.</p> - - <p>If you wish to prevent this type of request entirely, then - you need to let Apache know what hostnames to accept and what - hostnames to reject. You do this by configuring name-virtual - hosts, where the first listed host is the default host that - will catch and reject unknown hostnames. For example:</p> - -<blockquote> -<pre> -NameVirtualHost * - -<VirtualHost *> - ServerName default.only - <Location /> - Order allow,deny - Deny from all - </Location> -</VirtualHost> - -<VirtualHost *> - ServerName realhost1.example.com - ServerAlias alias1.example.com alias2.example.com - DocumentRoot /path/to/site1 -</VirtualHost> - -... -</pre> -</blockquote> - <hr /></li> - - </ol> - - - </body> -</html> - - - - - - - - - - - - - - - - <h3>F. Dynamic Content (CGI and SSI)</h3> - - <ol> - <li> - <a id="CGIoutsideScriptAlias" - name="CGIoutsideScriptAlias"><strong>How do I enable CGI - execution in directories other than the - ScriptAlias?</strong></a> - - <p>Apache recognizes all files in a directory named as a <a - href="../mod/mod_alias.html#scriptalias"><samp>ScriptAlias</samp></a> - as being eligible for execution rather than processing as - normal documents. This applies regardless of the file name, - so scripts in a ScriptAlias directory don't need to be - named "<samp>*.cgi</samp>" or "<samp>*.pl</samp>" or - whatever. In other words, <em>all</em> files in a - ScriptAlias directory are scripts, as far as Apache is - concerned.</p> - - <p>To persuade Apache to execute scripts in other - locations, such as in directories where normal documents - may also live, you must tell it how to recognize them - and - also that it's okay to execute them. For this, you need to - use something like the <a - href="../mod/mod_mime.html#addhandler"><samp>AddHandler</samp></a> - directive.</p> - - <ol> - <li> - In an appropriate section of your server configuration - files, add a line such as - - <dl> - <dd><code>AddHandler cgi-script .cgi</code></dd> - </dl> - - <p>The server will then recognize that all files in - that location (and its logical descendants) that end in - "<samp>.cgi</samp>" are script files, not - documents.</p> - </li> - - <li>Make sure that the directory location is covered by - an <a - href="../mod/core.html#options"><samp>Options</samp></a> - declaration that includes the <samp>ExecCGI</samp> - option.</li> - </ol> - - <p>In some situations, you might not want to actually allow - all files named "<samp>*.cgi</samp>" to be executable. - Perhaps all you want is to enable a particular file in a - normal directory to be executable. This can be - alternatively accomplished <em>via</em> <a - href="../mod/mod_rewrite.html"><samp>mod_rewrite</samp></a> - and the following steps:</p> - - <ol> - <li> - Locally add to the corresponding <samp>.htaccess</samp> - file a ruleset similar to this one: - - <dl> - <dd><code>RewriteEngine on<br /> - RewriteBase /~foo/bar/<br /> - RewriteRule ^quux\.cgi$ - - [T=application/x-httpd-cgi]</code></dd> - </dl> - </li> - - <li>Make sure that the directory location is covered by - an <a - href="../mod/core.html#options"><samp>Options</samp></a> - declaration that includes the <samp>ExecCGI</samp> and - <samp>FollowSymLinks</samp> option.</li> - </ol> - <hr /> - </li> - - <li> - <a id="premature-script-headers" - name="premature-script-headers"><strong>What does it mean - when my CGIs fail with "<samp>Premature end of script - headers</samp>"?</strong></a> - - <p>It means just what it says: the server was expecting a - complete set of HTTP headers (one or more followed by a - blank line), and didn't get them.</p> - - <p>The most common cause of this problem is the script - dying before sending the complete set of headers, or - possibly any at all, to the server. To see if this is the - case, try running the script standalone from an interactive - session, rather than as a script under the server. If you - get error messages, this is almost certainly the cause of - the "premature end of script headers" message. Even if the - CGI runs fine from the command line, remember that the - environment and permissions may be different when running - under the web server. The CGI can only access resources - allowed for the <a - href="../mod/core.html#user"><code>User</code></a> and <a - href="../mod/core.html#group"><code>Group</code></a> - specified in your Apache configuration. In addition, the - environment will not be the same as the one provided on the - command line, but it can be adjusted using the directives - provided by <a href="../mod/mod_env.html">mod_env</a>.</p> - - <p>The second most common cause of this (aside from people - not outputting the required headers at all) is a result of - an interaction with Perl's output buffering. To make Perl - flush its buffers after each output statement, insert the - following statements around the <code>print</code> or - <code>write</code> statements that send your HTTP - headers:</p> - - <dl> - <dd><code>{<br /> - local ($oldbar) = $|;<br /> - $cfh = select (STDOUT);<br /> - $| = 1;<br /> - #<br /> - # print your HTTP headers here<br /> - #<br /> - $| = $oldbar;<br /> - select ($cfh);<br /> - }</code></dd> - </dl> - - <p>This is generally only necessary when you are calling - external programs from your script that send output to - stdout, or if there will be a long delay between the time - the headers are sent and the actual content starts being - emitted. To maximize performance, you should turn - buffer-flushing back <em>off</em> (with <code>$| = 0</code> - or the equivalent) after the statements that send the - headers, as displayed above.</p> - - <p>If your script isn't written in Perl, do the equivalent - thing for whatever language you <em>are</em> using - (<em>e.g.</em>, for C, call <code>fflush()</code> after - writing the headers).</p> - - <p>Another cause for the "premature end of script headers" - message are the RLimitCPU and RLimitMEM directives. You may - get the message if the CGI script was killed due to a - resource limit.</p> - - <p>In addition, a configuration problem in <a - href="../suexec.html">suEXEC</a>, mod_perl, or another - third party module can often interfere with the execution - of your CGI and cause the "premature end of script headers" - message.</p> - <hr /> - </li> - - <li> - <a id="POSTnotallowed" name="POSTnotallowed"><strong>Why do - I keep getting "Method Not Allowed" for form POST - requests?</strong></a> - - <p>This is almost always due to Apache not being configured - to treat the file you are trying to POST to as a CGI - script. You can not POST to a normal HTML file; the - operation has no meaning. See the FAQ entry on <a - href="#CGIoutsideScriptAlias">CGIs outside ScriptAliased - directories</a> for details on how to configure Apache to - treat the file in question as a CGI.</p> - <hr /> - </li> - - <li> - <a id="nph-scripts" name="nph-scripts"><strong>How can I - get my script's output without Apache buffering it? Why - doesn't my server push work?</strong></a> - - <p>As of Apache 1.3, CGI scripts are essentially not - buffered. Every time your script does a "flush" to output - data, that data gets relayed on to the client. Some - scripting languages, for example Perl, have their own - buffering for output - this can be disabled by setting the - <code>$|</code> special variable to 1. Of course this does - increase the overall number of packets being transmitted, - which can result in a sense of slowness for the end - user.</p> - - <p>Prior to 1.3, you needed to use "nph-" scripts to - accomplish non-buffering. Today, the only difference - between nph scripts and normal scripts is that nph scripts - require the full HTTP headers to be sent.</p> - <hr /> - </li> - - <li> - <a id="cgi-spec" name="cgi-spec"><strong>Where can I find - the "CGI specification"?</strong></a> - - <p>The Common Gateway Interface (CGI) specification can be - found at the original NCSA site < <a - href="http://hoohoo.ncsa.uiuc.edu/cgi/interface.html"><samp> - http://hoohoo.ncsa.uiuc.edu/cgi/interface.html</samp></a>>. - This version hasn't been updated since 1995, and there have - been some efforts to update it.</p> - - <p>A new draft is being worked on with the intent of making - it an informational RFC; you can find out more about this - project at <<a - href="http://web.golux.com/coar/cgi/"><samp>http://web.golux.com/coar/cgi/</samp></a>>.</p> - <hr /> - </li> - - <li> - <a id="fastcgi" name="fastcgi"><strong>Why isn't FastCGI - included with Apache any more?</strong></a> - - <p>The simple answer is that it was becoming too difficult - to keep the version being included with Apache synchronized - with the master copy at the <a - href="http://www.fastcgi.com/">FastCGI web site</a>. When a - new version of Apache was released, the version of the - FastCGI module included with it would soon be out of - date.</p> - - <p>You can still obtain the FastCGI module for Apache from - the master FastCGI web site.</p> - <hr /> - </li> - - <li> - <a id="ssi-part-i" name="ssi-part-i"><strong>How do I - enable SSI (parsed HTML)?</strong></a> - - <p>SSI (an acronym for Server-Side Include) directives - allow static HTML documents to be enhanced at run-time - (<em>e.g.</em>, when delivered to a client by Apache). The - format of SSI directives is covered in the <a - href="../mod/mod_include.html">mod_include manual</a>; - suffice it to say that Apache supports not only SSI but - xSSI (eXtended SSI) directives.</p> - - <p>Processing a document at run-time is called - <em>parsing</em> it; hence the term "parsed HTML" sometimes - used for documents that contain SSI instructions. Parsing - tends to be resource-consumptive compared to serving static - files, and is not enabled by default. It can also interfere - with the cachability of your documents, which can put a - further load on your server. (See the <a - href="#ssi-part-ii">next question</a> for more information - about this.)</p> - - <p>To enable SSI processing, you need to</p> - - <ul> - <li>Build your server with the <a - href="../mod/mod_include.html"><samp>mod_include</samp></a> - module. This is normally compiled in by default.</li> - - <li>Make sure your server configuration files have an <a - href="../mod/core.html#options"><samp>Options</samp></a> - directive which permits <samp>Includes</samp>.</li> - - <li> - Make sure that the directory where you want the SSI - documents to live is covered by the "server-parsed" - content handler, either explicitly or in some ancestral - location. That can be done with the following <a - href="../mod/mod_mime.html#addhandler"><samp>AddHandler</samp></a> - directive: - - <dl> - <dd><code>AddHandler server-parsed .shtml</code></dd> - </dl> - - <p>This indicates that all files ending in ".shtml" in - that location (or its descendants) should be parsed. - Note that using ".html" will cause all normal HTML - files to be parsed, which may put an inordinate load on - your server.</p> - </li> - </ul> - - <p>For additional information, see the <cite>Apache - Week</cite> article on <a - href="http://www.apacheweek.com/features/ssi" - rel="Help"><cite>Using Server Side Includes</cite></a>.</p> - <hr /> - </li> - - <li> - <a id="ssi-part-ii" name="ssi-part-ii"><strong>Why don't my - parsed files get cached?</strong></a> - - <p>Since the server is performing run-time processing of - your SSI directives, which may change the content shipped - to the client, it can't know at the time it starts parsing - what the final size of the result will be, or whether the - parsed result will always be the same. This means that it - can't generate <samp>Content-Length</samp> or - <samp>Last-Modified</samp> headers. Caches commonly work by - comparing the <samp>Last-Modified</samp> of what's in the - cache with that being delivered by the server. Since the - server isn't sending that header for a parsed document, - whatever's doing the caching can't tell whether the - document has changed or not - and so fetches it again to be - on the safe side.</p> - - <p>You can work around this in some cases by causing an - <samp>Expires</samp> header to be generated. (See the <a - href="../mod/mod_expires.html" - rel="Help"><samp>mod_expires</samp></a> documentation for - more details.) Another possibility is to use the <a - href="../mod/mod_include.html#xbithack" - rel="Help"><samp>XBitHack Full</samp></a> mechanism, which - tells Apache to send (under certain circumstances detailed - in the XBitHack directive description) a - <samp>Last-Modified</samp> header based upon the last - modification time of the file being parsed. Note that this - may actually be lying to the client if the parsed file - doesn't change but the SSI-inserted content does; if the - included content changes often, this can result in stale - copies being cached.</p> - <hr /> - </li> - - <li> - <a id="ssi-part-iii" name="ssi-part-iii"><strong>How can I - have my script output parsed?</strong></a> - - <p>So you want to include SSI directives in the output from - your CGI script, but can't figure out how to do it? The - short answer is "you can't." This is potentially a security - liability and, more importantly, it can not be cleanly - implemented under the current server API. The best - workaround is for your script itself to do what the SSIs - would be doing. After all, it's generating the rest of the - content.</p> - - <p>This is a feature The Apache Group hopes to add in the - next major release after 1.3.</p> - <hr /> - </li> - - <li> - <a id="ssi-part-iv" name="ssi-part-iv"><strong>SSIs don't - work for VirtualHosts and/or user home - directories.</strong></a> - - <p>This is almost always due to having some setting in your - config file that sets "Options Includes" or some other - setting for your DocumentRoot but not for other - directories. If you set it inside a Directory section, then - that setting will only apply to that directory.</p> - <hr /> - </li> - - <li> - <a id="errordocssi" name="errordocssi"><strong>How can I - use <code>ErrorDocument</code> and SSI to simplify - customized error messages?</strong></a> - - <p>Have a look at <a href="custom_errordocs.html">this - document</a>. It shows in example form how you can a - combination of XSSI and negotiation to tailor a set of - <code>ErrorDocument</code>s to your personal taste, and - returning different internationalized error responses based - on the client's native language.</p> - <hr /> - </li> - - <li> - <a id="remote-user-var" name="remote-user-var"><strong>Why - is the environment variable <samp>REMOTE_USER</samp> not - set?</strong></a> - - <p>This variable is set and thus available in SSI or CGI - scripts <strong>if and only if</strong> the requested - document was protected by access authentication. For an - explanation on how to implement these restrictions, see <a - href="http://www.apacheweek.com/"><cite>Apache - Week</cite></a>'s articles on <a - href="http://www.apacheweek.com/features/userauth"><cite>Using - User Authentication</cite></a> or <a - href="http://www.apacheweek.com/features/dbmauth"><cite>DBM - User Authentication</cite></a>.</p> - - <p>Hint: When using a CGI script to receive the data of a - HTML <samp>FORM</samp> notice that protecting the document - containing the <samp>FORM</samp> is not sufficient to - provide <samp>REMOTE_USER</samp> to the CGI script. You - have to protect the CGI script, too. Or alternatively only - the CGI script (then authentication happens only after - filling out the form).</p> - <hr /> - </li> - - <li> - <a id="user-cgi" name="user-cgi"><strong>How do I allow - each of my user directories to have a cgi-bin - directory?</strong></a> - - <p>Remember that CGI execution does not need to be - restricted only to cgi-bin directories. You can <a - href="#CGIoutsideScriptAlias">allow CGI script execution in - arbitrary parts of your filesystem</a>.</p> - - <p>There are many ways to give each user directory a - cgi-bin directory such that anything requested as - <samp>http://example.com/~user/cgi-bin/program</samp> will - be executed as a CGI script. Two alternatives are:</p> - - <ol> - <li> - Place the cgi-bin directory next to the public_html - directory: - - <dl> - <dd><code>ScriptAliasMatch ^/~([^/]*)/cgi-bin/(.*) - /home/$1/cgi-bin/$2</code></dd> - </dl> - </li> - - <li> - Place the cgi-bin directory underneath the public_html - directory: - - <dl> - <dd><code><Directory - /home/*/public_html/cgi-bin><br /> - Options ExecCGI<br /> - SetHandler cgi-script<br /> - </Directory></code></dd> - </dl> - </li> - </ol> - <p>If you are using suexec, the first technique will not work - because CGI scripts must be stored under the <code>public_html</code> - directory.</p> - - <hr /> - </li> - </ol> - - - </body> -</html> - - - - - - - - - - - - - - - - <h3>G. Authentication and Access Restrictions</h3> - - <ol> - <li> - <a id="dnsauth" name="dnsauth"><strong>Why isn't - restricting access by host or domain name working - correctly?</strong></a> - - <p>Two of the most common causes of this are:</p> - - <ol> - <li><strong>An error, inconsistency, or unexpected - mapping in the DNS registration</strong><br /> - This happens frequently: your configuration restricts - access to <samp>Host.FooBar.Com</samp>, but you can't get - in from that host. The usual reason for this is that - <samp>Host.FooBar.Com</samp> is actually an alias for - another name, and when Apache performs the - address-to-name lookup it's getting the <em>real</em> - name, not <samp>Host.FooBar.Com</samp>. You can verify - this by checking the reverse lookup yourself. The easiest - way to work around it is to specify the correct host name - in your configuration.</li> - - <li> - <strong>Inadequate checking and verification in your - configuration of Apache</strong><br /> - If you intend to perform access checking and - restriction based upon the client's host or domain - name, you really need to configure Apache to - double-check the origin information it's supplied. You - do this by adding the <samp>-DMAXIMUM_DNS</samp> clause - to the <samp>EXTRA_CFLAGS</samp> definition in your - <samp>Configuration</samp> file. For example: - - <dl> - <dd><code>EXTRA_CFLAGS=-DMAXIMUM_DNS</code></dd> - </dl> - - <p>This will cause Apache to be very paranoid about - making sure a particular host address is - <em>really</em> assigned to the name it claims to be. - Note that this <em>can</em> incur a significant - performance penalty, however, because of all the name - resolution requests being sent to a nameserver.</p> - </li> - </ol> - <hr /> - </li> - - <li> - <a id="user-authentication" - name="user-authentication"><strong>How do I set up Apache - to require a username and password to access certain - documents?</strong></a> - - <p>There are several ways to do this; some of the more - popular ones are to use the <a - href="../mod/mod_auth.html">mod_auth</a>, <a - href="../mod/mod_auth_db.html">mod_auth_db</a>, or <a - href="../mod/mod_auth_dbm.html">mod_auth_dbm</a> - modules.</p> - - <p>For an explanation on how to implement these - restrictions, see <a - href="http://www.apacheweek.com/"><cite>Apache - Week</cite></a>'s articles on <a - href="http://www.apacheweek.com/features/userauth"><cite>Using - User Authentication</cite></a> or <a - href="http://www.apacheweek.com/features/dbmauth"><cite>DBM - User Authentication</cite></a>, or see the <a - href="../howto/auth.html">authentication tutorial</a> in the - Apache documentation.</p> - <hr /> - </li> - - <li> - <a id="remote-auth-only" - name="remote-auth-only"><strong>How do I set up Apache to - allow access to certain documents only if a site is either - a local site <em>or</em> the user supplies a password and - username?</strong></a> - - <p>Use the <a href="../mod/core.html#satisfy">Satisfy</a> - directive, in particular the <code>Satisfy Any</code> - directive, to require that only one of the access - restrictions be met. For example, adding the following - configuration to a <samp>.htaccess</samp> or server - configuration file would restrict access to people who - either are accessing the site from a host under domain.com - or who can supply a valid username and password:</p> - - <dl> - <dd><code>Deny from all<br /> - Allow from .domain.com<br /> - AuthType Basic<br /> - AuthUserFile /usr/local/apache/conf/htpasswd.users<br /> - AuthName "special directory"<br /> - Require valid-user<br /> - Satisfy any</code></dd> - </dl> - - <p>See the <a href="#user-authentication">user - authentication</a> question and the <a - href="../mod/mod_access.html">mod_access</a> module for - details on how the above directives work.</p> - <hr /> - </li> - - <li> - <a id="authauthoritative" - name="authauthoritative"><strong>Why does my authentication - give me a server error?</strong></a> - - <p>Under normal circumstances, the Apache access control - modules will pass unrecognized user IDs on to the next - access control module in line. Only if the user ID is - recognized and the password is validated (or not) will it - give the usual success or "authentication failed" - messages.</p> - - <p>However, if the last access module in line 'declines' - the validation request (because it has never heard of the - user ID or because it is not configured), the - <samp>http_request</samp> handler will give one of the - following, confusing, errors:</p> - - <ul> - <li><samp>check access</samp></li> - - <li><samp>check user. No user file?</samp></li> - - <li><samp>check access. No groups file?</samp></li> - </ul> - - <p>This does <em>not</em> mean that you have to add an - '<samp>AuthUserFile /dev/null</samp>' line as some - magazines suggest!</p> - - <p>The solution is to ensure that at least the last module - is authoritative and <strong>CONFIGURED</strong>. By - default, <samp>mod_auth</samp> is authoritative and will - give an OK/Denied, but only if it is configured with the - proper <samp>AuthUserFile</samp>. Likewise, if a valid - group is required. (Remember that the modules are processed - in the reverse order from that in which they appear in your - compile-time <samp>Configuration</samp> file.)</p> - - <p>A typical situation for this error is when you are using - the <samp>mod_auth_dbm</samp>, <samp>mod_auth_msql</samp>, - <samp>mod_auth_mysql</samp>, <samp>mod_auth_anon</samp> or - <samp>mod_auth_cookie</samp> modules on their own. These - are by default <strong>not</strong> authoritative, and this - will pass the buck on to the (non-existent) next - authentication module when the user ID is not in their - respective database. Just add the appropriate - '<samp><em>XXX</em>Authoritative yes</samp>' line to the - configuration.</p> - - <p>In general it is a good idea (though not terribly - efficient) to have the file-based <samp>mod_auth</samp> a - module of last resort. This allows you to access the web - server with a few special passwords even if the databases - are down or corrupted. This does cost a file - open/seek/close for each request in a protected area.</p> - <hr /> - </li> - - <li> - <a id="auth-on-same-machine" - name="auth-on-same-machine"><strong>Do I have to keep the - (mSQL) authentication information on the same - machine?</strong></a> - - <p>Some organizations feel very strongly about keeping the - authentication information on a different machine than the - webserver. With the <samp>mod_auth_msql</samp>, - <samp>mod_auth_mysql</samp>, and other SQL modules - connecting to (R)DBMses this is quite possible. Just - configure an explicit host to contact.</p> - - <p>Be aware that with mSQL and Oracle, opening and closing - these database connections is very expensive and time - consuming. You might want to look at the code in the - <samp>auth_*</samp> modules and play with the compile time - flags to alleviate this somewhat, if your RDBMS licences - allow for it.</p> - <hr /> - </li> - - <li> - <a id="msql-slow" name="msql-slow"><strong>Why is my mSQL - authentication terribly slow?</strong></a> - - <p>You have probably configured the Host by specifying a - FQHN, and thus the <samp>libmsql</samp> will use a full - blown TCP/IP socket to talk to the database, rather than a - fast internal device. The <samp>libmsql</samp>, the mSQL - FAQ, and the <samp>mod_auth_msql</samp> documentation warn - you about this. If you have to use different hosts, check - out the <samp>mod_auth_msql</samp> code for some compile - time flags which might - or might not - suit you.</p> - <hr /> - </li> - - <li> - <a id="passwdauth" name="passwdauth"><strong>Can I use my - <samp>/etc/passwd</samp> file for Web page - authentication?</strong></a> - - <p>Yes, you can - but it's a <strong>very bad - idea</strong>. Here are some of the reasons:</p> - - <ul> - <li>The Web technology provides no governors on how often - or how rapidly password (authentication failure) retries - can be made. That means that someone can hammer away at - your system's <samp>root</samp> password using the Web, - using a dictionary or similar mass attack, just as fast - as the wire and your server can handle the requests. Most - operating systems these days include attack detection - (such as <em>n</em> failed passwords for the same account - within <em>m</em> seconds) and evasion (breaking the - connection, disabling the account under attack, disabling - <em>all</em> logins from that source, <em>et - cetera</em>), but the Web does not.</li> - - <li>An account under attack isn't notified (unless the - server is heavily modified); there's no "You have 19483 - login failures" message when the legitimate owner logs - in.</li> - - <li>Without an exhaustive and error-prone examination of - the server logs, you can't tell whether an account has - been compromised. Detecting that an attack has occurred, - or is in progress, is fairly obvious, though - - <em>if</em> you look at the logs.</li> - - <li>Web authentication passwords (at least for Basic - authentication) generally fly across the wire, and - through intermediate proxy systems, in what amounts to - plain text. "O'er the net we go/Caching all the way;/O - what fun it is to surf/Giving my password away!"</li> - - <li>Since HTTP is stateless, information about the - authentication is transmitted <em>each and every - time</em> a request is made to the server. Essentially, - the client caches it after the first successful access, - and transmits it without asking for all subsequent - requests to the same server.</li> - - <li>It's relatively trivial for someone on your system to - put up a page that will steal the cached password from a - client's cache without them knowing. Can you say - "password grabber"?</li> - </ul> - - <p>If you still want to do this in light of the above - disadvantages, the method is left as an exercise for the - reader. It'll void your Apache warranty, though, and you'll - lose all accumulated UNIX guru points.</p> - <hr /> - </li> - - <li> - <a id="prompted-twice" name="prompted-twice"><strong>Why - does Apache ask for my password twice before serving a - file?</strong></a> - - <p>If the hostname under which you are accessing the server - is different than the hostname specified in the <a - href="../mod/core.html#servername"><code>ServerName</code></a> - directive, then depending on the setting of the <a - href="../mod/core.html#usecanonicalname"><code>UseCanonicalName</code></a> - directive, Apache will redirect you to a new hostname when - constructing self-referential URLs. This happens, for - example, in the case where you request a directory without - including the trailing slash.</p> - - <p>When this happens, Apache will ask for authentication - once under the original hostname, perform the redirect, and - then ask again under the new hostname. For security - reasons, the browser must prompt again for the password - when the host name changes.</p> - - <p>To eliminate this problem you should</p> - - <ol> - <li>Always use the trailing slash when requesting - directories;</li> - - <li>Change the <code>ServerName</code> to match the name - you are using in the URL; and/or</li> - - <li>Set <code>UseCanonicalName off</code>.</li> - </ol> - <hr /> - </li> - - <li> - <a id="image-theft" name="image-theft"><strong>How can I prevent - people from "stealing" the images from my web site?</strong></a> - - <p>The goal here is to prevent people from inlining your images - directly from their web site, but accessing them only if they - appear inline in your pages.<p> - - <p>This can be accomplished with a combination of SetEnvIf and - the Deny and Allow directives. However, it is important to - understand that any access restriction based on the REFERER - header is intrinsically problematic due to the fact that - browsers can send an incorrect REFERER, either because they - want to circumvent your restriction or simply because they don't - send the right thing (or anything at all).</p> - - <p>The following configuration will produce the desired effect - if the browser passes correct REFERER headers.</p> - -<pre> -SetEnvIf REFERER "www\.mydomain\.com" linked_from_here -SetEnvIf REFERER "^$" linked_from_here - -<Directory /www/images> - Order deny,allow - Deny from all - Allow from env=linked_from_here -</Directory> -</pre> - -<p>Further examples can be found in the <a -href="../env.html#examples">Environment Variables</a> documentation.</p> - - <hr /> - </li> - - - </ol> - - - </body> -</html> - - - - - - - - - - - - - - - - <h3>H. URL Rewriting</h3> - - <ol> - <li> - <a id="rewrite-more-config" - name="rewrite-more-config"><strong>Where can I find - mod_rewrite rulesets which already solve particular - URL-related problems?</strong></a> - - <p>There is a collection of <a - href="http://www.engelschall.com/pw/apache/rewriteguide/">Practical - Solutions for URL-Manipulation</a> where you can find all - typical solutions the author of <a - href="../mod/mod_rewrite.html"><samp>mod_rewrite</samp></a> - currently knows of. If you have more interesting rulesets - which solve particular problems not currently covered in - this document, send it to <a - href="mailto:rse@apache.org">Ralf S. Engelschall</a> for - inclusion. The other webmasters will thank you for avoiding - the reinvention of the wheel.</p> - <hr /> - </li> - - <li> - <a id="rewrite-article" - name="rewrite-article"><strong>Where can I find any - published information about URL-manipulations and - mod_rewrite?</strong></a> - - <p>There is an article from <a - href="mailto:rse@apache.org">Ralf S. Engelschall</a> about - URL-manipulations based on <a - href="../mod/mod_rewrite.html"><samp>mod_rewrite</samp></a> - in the "iX Multiuser Multitasking Magazin" issue #12/96. - The german (original) version can be read online at <<a - href="http://www.heise.de/ix/artikel/9612149/">http://www.heise.de/ix/artikel/9612149/</a>>, - the English (translated) version can be found at <<a - href="http://www.heise.de/ix/artikel/E/9612149/">http://www.heise.de/ix/artikel/E/9612149/</a>>.</p> - <hr /> - </li> - - <li> - <a id="rewrite-complexity" - name="rewrite-complexity"><strong>Why is mod_rewrite so - difficult to learn and seems so complicated?</strong></a> - - <p>Hmmm... there are a lot of reasons. First, mod_rewrite - itself is a powerful module which can help you in really - <strong>all</strong> aspects of URL rewriting, so it can be - no trivial module per definition. To accomplish its hard - job it uses software leverage and makes use of a powerful - regular expression library by Henry Spencer which is an - integral part of Apache since its version 1.2. And regular - expressions itself can be difficult to newbies, while - providing the most flexible power to the advanced - hacker.</p> - - <p>On the other hand mod_rewrite has to work inside the - Apache API environment and needs to do some tricks to fit - there. For instance the Apache API as of 1.x really was not - designed for URL rewriting at the <tt>.htaccess</tt> level - of processing. Or the problem of multiple rewrites in - sequence, which is also not handled by the API per design. - To provide this features mod_rewrite has to do some special - (but API compliant!) handling which leads to difficult - processing inside the Apache kernel. While the user usually - doesn't see anything of this processing, it can be - difficult to find problems when some of your RewriteRules - seem not to work.</p> - <hr /> - </li> - - <li> - <a id="rewrite-dontwork" - name="rewrite-dontwork"><strong>What can I do if my - RewriteRules don't work as expected?</strong></a> - - <p>Use "<samp>RewriteLog somefile</samp>" and - "<samp>RewriteLogLevel 9</samp>" and have a precise look at - the steps the rewriting engine performs. This is really the - only one and best way to debug your rewriting - configuration.</p> - <hr /> - </li> - - <li> - <a id="rewrite-prefixdocroot" - name="rewrite-prefixdocroot"><strong>Why don't some of my - URLs get prefixed with DocumentRoot when using - mod_rewrite?</strong></a> - - <p>If the rule starts with <samp>/somedir/...</samp> make - sure that really no <samp>/somedir</samp> exists on the - filesystem if you don't want to lead the URL to match this - directory, <em>i.e.</em>, there must be no root directory - named <samp>somedir</samp> on the filesystem. Because if - there is such a directory, the URL will not get prefixed - with DocumentRoot. This behavior looks ugly, but is really - important for some other aspects of URL rewriting.</p> - <hr /> - </li> - - <li> - <a id="rewrite-nocase" name="rewrite-nocase"><strong>How - can I make all my URLs case-insensitive with - mod_rewrite?</strong></a> - - <p>You can't! The reasons are: first, that, case - translations for arbitrary length URLs cannot be done - <em>via</em> regex patterns and corresponding - substitutions. One needs a per-character pattern like the - sed/Perl <samp>tr|..|..|</samp> feature. Second, just - making URLs always upper or lower case does not solve the - whole problem of case-INSENSITIVE URLs, because URLs - actually have to be rewritten to the correct case-variant - for the file residing on the filesystem in order to allow - Apache to access the file. And the Unix filesystem is - always case-SENSITIVE.</p> - - <p>But there is a module named <code><a - href="../mod/mod_speling.html">mod_speling.c</a></code> in - the Apache distribution. Try this module to help correct - people who use mis-cased URLs.</p> - <hr /> - </li> - - <li> - <a id="rewrite-virthost" - name="rewrite-virthost"><strong>Why are RewriteRules in my - VirtualHost parts ignored?</strong></a> - - <p>Because you have to enable the engine for every virtual - host explicitly due to security concerns. Just add a - "RewriteEngine on" to your virtual host configuration - parts.</p> - <hr /> - </li> - - <li> - <a id="rewrite-envwhitespace" - name="rewrite-envwhitespace"><strong>How can I use strings - with whitespaces in RewriteRule's ENV flag?</strong></a> - - <p>There is only one ugly solution: You have to surround - the complete flag argument by quotation marks - (<samp>"[E=...]"</samp>). Notice: The argument to quote - here is not the argument to the E-flag, it is the argument - of the Apache config file parser, <em>i.e.</em>, the third - argument of the RewriteRule here. So you have to write - <samp>"[E=any text with whitespaces]"</samp>.</p> - <hr /> - </li> - </ol> - - - </body> -</html> - - - - - - - - - - - - - - - - <h3>I. Features</h3> - - <ol> - <li> - <a id="proxy" name="proxy"><strong>Does or will Apache act - as a Proxy server?</strong></a> - - <p>Apache version 1.1 and above comes with a <a - href="../mod/mod_proxy.html">proxy module</a>. If compiled - in, this will make Apache act as a caching-proxy - server.</p> - <hr /> - </li> - - <li> - <a id="multiviews" name="multiviews"><strong>What are - "multiviews"?</strong></a> - - <p>"Multiviews" is the general name given to the Apache - server's ability to provide language-specific document - variants in response to a request. This is documented quite - thoroughly in the <a href="../content-negotiation.html" - rel="Help">content negotiation</a> description page. In - addition, <cite>Apache Week</cite> carried an article on - this subject entitled "<a - href="http://www.apacheweek.com/features/negotiation" - rel="Help"><cite>Content Negotiation - Explained</cite></a>".</p> - <hr /> - </li> - - <li> - <a id="putsupport" name="putsupport"><strong>Why can't I - publish to my Apache server using PUT on Netscape Gold and - other programs?</strong></a> - - <p>Because you need to install and configure a script to - handle the uploaded files. This script is often called a - "PUT" handler. There are several available, but they may - have security problems. Using FTP uploads may be easier and - more secure, at least for now. For more information, see - the <cite>Apache Week</cite> article <a - href="http://www.apacheweek.com/features/put"><cite>Publishing - Pages with PUT</cite></a>.</p> - <hr /> - </li> - - <li> - <a id="SSL-i" name="SSL-i"><strong>Why doesn't Apache - include SSL?</strong></a> - - <p>SSL (Secure Socket Layer) data transport requires - encryption, and many governments have restrictions upon the - import, export, and use of encryption technology. If Apache - included SSL in the base package, its distribution would - involve all sorts of legal and bureaucratic issues, and it - would no longer be freely available. Also, some of the - technology required to talk to current clients using SSL is - patented by <a href="http://www.rsa.com/">RSA Data - Security</a>, who restricts its use without a license.</p> - - <p>Some SSL implementations of Apache are available, - however; see the "<a - href="http://httpd.apache.org/related_projects.html">related - projects</a>" page at the main Apache web site.</p> - - <p>You can find out more about this topic in the - <cite>Apache Week</cite> article about <a - href="http://www.apacheweek.com/features/ssl" - rel="Help"><cite>Apache and Secure - Transactions</cite></a>.</p> - <hr /> - </li> - - <li> - <a id="footer" name="footer"><strong>How can I attach a - footer to my documents without using SSI?</strong></a> - - <p>You can make arbitrary changes to static documents by - configuring an <a - href="../mod/mod_actions.html#action">Action</a> which - launches a CGI script. The CGI is then responsible for - setting a content-type and delivering the requested - document (the location of which is passed in the - <samp>PATH_TRANSLATED</samp> environment variable), along - with whatever footer is needed.</p> - - <p>Busy sites may not want to run a CGI script on every - request, and should consider using an Apache module to add - the footer. There are several third party modules available - through the <a href="http://modules.apache.org/">Apache - Module Registry</a> which will add footers to documents. - These include mod_trailer, PHP - (<samp>php3_auto_append_file</samp>), mod_layout, and - mod_perl (<samp>Apache::Sandwich</samp>).</p> - <hr /> - </li> - - <li> - <a id="search" name="search"><strong>Does Apache include a - search engine?</strong></a> - - <p>Apache does not include a search engine, but there are - many good commercial and free search engines which can be - used easily with Apache. Some of them are listed on the <a - href="http://www.searchtools.com/tools/tools.html">Web Site - Search Tools</a> page. Open source search engines that are - often used with Apache include <a - href="http://www.htdig.org/">ht://Dig</a> and <a - href="http://sunsite.berkeley.edu/SWISH-E/">SWISH-E</a>.</p> - <hr /> - </li> - - <li> - <a id="rotate" name="rotate"><strong>How can I rotate my - log files?</strong></a> - - <p>The simple answer: by piping the transfer log into an - appropriate log file rotation utility.</p> - - <p>The longer answer: In the src/support/ directory, you - will find a utility called <a - href="../programs/rotatelogs.html">rotatelogs</a> which can - be used like this:</p> -<pre> - TransferLog "|/path/to/rotatelogs /path/to/logs/access_log 86400" -</pre> - - <p>to enable daily rotation of the log files.<br /> - A more sophisticated solution of a logfile rotation - utility is available under the name <code>cronolog</code> - from Andrew Ford's site at <a - href="http://www.cronolog.org/">http://www.cronolog.org/</a>. - It can automatically create logfile subdirectories based on - time and date, and can have a constant symlink point to the - rotating logfiles. (As of version 1.6.1, cronolog is - available under the <a href="../LICENSE">Apache - License</a>). Use it like this:</p> -<pre> - CustomLog "|/path/to/cronolog --symlink=/usr/local/apache/logs/access_log /usr/local/apache/logs/%Y/%m/access_log" combined -</pre> - <hr /> - </li> - - <li> - <a id="conditional-logging" - name="conditional-logging"><strong>How do I keep certain - requests from appearing in my logs?</strong></a> - - <p>The maximum flexibility for removing unwanted - information from log files is obtained by post-processing - the logs, or using piped-logs to feed the logs through a - program which does whatever you want. However, Apache does - offer the ability to prevent requests from ever appearing - in the log files. You can do this by using the <a - href="../mod/mod_setenvif.html#setenvif"><code>SetEnvIf</code></a> - directive to set an environment variable for certain - requests and then using the conditional <a - href="../mod/mod_log_config.html#customlog-conditional"><code> - CustomLog</code></a> syntax to prevent logging when the - environment variable is set.</p> - <hr /> - </li> - - <li> - <a id="dbinteg" name="dbinteg"><b>Does Apache support any - sort of database integration?</b></a> - - <p>No. Apache is a Web (HTTP) server, not an application - server. The base package does not include any such - functionality. See the <a href="http://www.php.net/">PHP - project</a> and the <a - href="http://perl.apache.org/">mod_perl project</a> for - examples of modules that allow you to work with databases - from within the Apache environment.</p> - <hr /> - </li> - - <li> - <a id="asp" name="asp"><b>Can I use Active Server Pages - (ASP) with Apache?</b></a> - - <p>The base Apache Web server package does not include ASP - support. However, there are a couple of after-market - solutions that let you add this functionality; see the <a - href="http://httpd.apache.org/related_projects.html">related - projects</a> page to find out more.</p> - <hr /> - </li> - - <li> - <a id="java" name="java"><b>Does Apache come with Java - support?</b></a> - - <p>The base Apache Web server package does not include - support for Java, Java Server Pages, Enterprise Java Beans, - or Java servlets. Those features are available as add-ons - from the Apache/Java project site, <URL:<a - href="http://jakarta.apache.org">http://jakarta.apache.org/</a>>.</p> - <hr /> - </li> - </ol> - - - </body> -</html> - - <hr /> <h3 align="CENTER">Apache HTTP Server Version 1.3</h3> diff --git a/usr.sbin/httpd/htdocs/manual/mod/core.html.en b/usr.sbin/httpd/htdocs/manual/mod/core.html.en index 448f4788494..17c059c7a58 100644 --- a/usr.sbin/httpd/htdocs/manual/mod/core.html.en +++ b/usr.sbin/httpd/htdocs/manual/mod/core.html.en @@ -883,7 +883,8 @@ <a href="directive-dict.html#Syntax" rel="Help"><strong>Syntax:</strong></a> <Directory - <em>directory-path</em>> ... </Directory> <br /> + <em>directory-path</em>|proxy:<em>url-path</em>> + ... </Directory> <br /> <a href="directive-dict.html#Context" rel="Help"><strong>Context:</strong></a> server config, virtual host<br /> @@ -991,12 +992,32 @@ <em>want</em> accessible. See the <a href="../misc/security_tips.html">Security Tips</a> page for more details.</strong></p> - The directory sections typically occur in the access.conf file, - but they may appear in any configuration file. <Directory> directives cannot nest, and cannot appear in a <a href="#limit"><Limit></a> or <a href="#limitexcept"><LimitExcept></a> section. + <p>If you have <a href="mod_proxy.html">mod_proxy</a> enabled, you + can use the <code>proxy:</code> syntax to apply configuration + directives to proxied content. The syntax for this is to specify the + proxied URLs to which you wish to apply the configuration, or to + specify <code>*</code> to apply to all proxied content:</p> + + <p>To apply to all proxied content:</p> + + <pre> + <Directory proxy:*> + ... directives here ... + </Directory> + </pre> + + <p>To apply to just a subset of proxied content:</p> + + <pre> + <Directory proxy:http://www.example.com/> + ... directives here ... + </Directory> + </pre> + <p><strong>See also</strong>: <a href="../sections.html">How Directory, Location and Files sections work</a> for an explanation of how these different sections are combined when a @@ -1963,11 +1984,19 @@ Syntax OK Require valid-user<br /> </Limit></code> </blockquote> - The method names listed can be one or more of: GET, POST, PUT, + <p>The method names listed can be one or more of: GET, POST, PUT, DELETE, CONNECT, OPTIONS, PATCH, PROPFIND, PROPPATCH, MKCOL, COPY, MOVE, LOCK, and UNLOCK. <strong>The method name is case-sensitive.</strong> If GET is used it will also restrict - HEAD requests. The TRACE method cannot be limited. + HEAD requests. The TRACE method cannot be limited.</p> + + <p><strong>Warning:</strong> A <a + href="#limitexcept"><LimitExcept></a> section should + always be used in preference to a <a + href="#limit"><Limit></a> section when restricting access, + since a <a href="#limitexcept"><LimitExcept></a> section + provides protection against arbitrary methods.</p> + <hr /> <h2><a id="limitexcept" name="limitexcept"><LimitExcept> @@ -2068,9 +2097,7 @@ Syntax OK <p>This directive specifies the number of <em>bytes</em> from 0 (meaning unlimited) to 2147483647 (2GB) that are allowed in a - request body. The default value is defined by the compile-time - constant <code>DEFAULT_LIMIT_REQUEST_BODY</code> (0 as - distributed).</p> + request body.</p> <p>The LimitRequestBody directive allows the user to set a limit on the allowed size of an HTTP request message body @@ -2577,6 +2604,11 @@ Syntax OK <pre>LogLevel notice</pre> + <p><strong>NOTE:</strong> When logging to a regular file messages + of the level <code>notice</code> cannot be suppressed and thus are + always logged. However, this doesn't apply when logging is done + using <code>syslog</code>.</p> + <hr /> <h2><a id="maxclients" name="maxclients">MaxClients diff --git a/usr.sbin/httpd/htdocs/manual/mod/core.html.html b/usr.sbin/httpd/htdocs/manual/mod/core.html.html index 01ca807474a..894d7beb07b 100644 --- a/usr.sbin/httpd/htdocs/manual/mod/core.html.html +++ b/usr.sbin/httpd/htdocs/manual/mod/core.html.html @@ -885,7 +885,8 @@ <a href="directive-dict.html#Syntax" rel="Help"><strong>Syntax:</strong></a> <Directory - <em>directory-path</em>> ... </Directory> <br /> + <em>directory-path</em>|proxy:<em>url-path</em>> + ... </Directory> <br /> <a href="directive-dict.html#Context" rel="Help"><strong>Context:</strong></a> server config, virtual host<br /> @@ -993,12 +994,32 @@ <em>want</em> accessible. See the <a href="../misc/security_tips.html">Security Tips</a> page for more details.</strong></p> - The directory sections typically occur in the access.conf file, - but they may appear in any configuration file. <Directory> directives cannot nest, and cannot appear in a <a href="#limit"><Limit></a> or <a href="#limitexcept"><LimitExcept></a> section. + <p>If you have <a href="mod_proxy.html">mod_proxy</a> enabled, you + can use the <code>proxy:</code> syntax to apply configuration + directives to proxied content. The syntax for this is to specify the + proxied URLs to which you wish to apply the configuration, or to + specify <code>*</code> to apply to all proxied content:</p> + + <p>To apply to all proxied content:</p> + + <pre> + <Directory proxy:*> + ... directives here ... + </Directory> + </pre> + + <p>To apply to just a subset of proxied content:</p> + + <pre> + <Directory proxy:http://www.example.com/> + ... directives here ... + </Directory> + </pre> + <p><strong>See also</strong>: <a href="../sections.html">How Directory, Location and Files sections work</a> for an explanation of how these different sections are combined when a @@ -1965,11 +1986,19 @@ Syntax OK Require valid-user<br /> </Limit></code> </blockquote> - The method names listed can be one or more of: GET, POST, PUT, + <p>The method names listed can be one or more of: GET, POST, PUT, DELETE, CONNECT, OPTIONS, PATCH, PROPFIND, PROPPATCH, MKCOL, COPY, MOVE, LOCK, and UNLOCK. <strong>The method name is case-sensitive.</strong> If GET is used it will also restrict - HEAD requests. The TRACE method cannot be limited. + HEAD requests. The TRACE method cannot be limited.</p> + + <p><strong>Warning:</strong> A <a + href="#limitexcept"><LimitExcept></a> section should + always be used in preference to a <a + href="#limit"><Limit></a> section when restricting access, + since a <a href="#limitexcept"><LimitExcept></a> section + provides protection against arbitrary methods.</p> + <hr /> <h2><a id="limitexcept" name="limitexcept"><LimitExcept> @@ -2070,9 +2099,7 @@ Syntax OK <p>This directive specifies the number of <em>bytes</em> from 0 (meaning unlimited) to 2147483647 (2GB) that are allowed in a - request body. The default value is defined by the compile-time - constant <code>DEFAULT_LIMIT_REQUEST_BODY</code> (0 as - distributed).</p> + request body.</p> <p>The LimitRequestBody directive allows the user to set a limit on the allowed size of an HTTP request message body @@ -2579,6 +2606,11 @@ Syntax OK <pre>LogLevel notice</pre> + <p><strong>NOTE:</strong> When logging to a regular file messages + of the level <code>notice</code> cannot be suppressed and thus are + always logged. However, this doesn't apply when logging is done + using <code>syslog</code>.</p> + <hr /> <h2><a id="maxclients" name="maxclients">MaxClients diff --git a/usr.sbin/httpd/htdocs/manual/mod/directives.html.ja.jis b/usr.sbin/httpd/htdocs/manual/mod/directives.html.ja.jis index 5a17a7e1fed..24d9d5489d4 100644 --- a/usr.sbin/httpd/htdocs/manual/mod/directives.html.ja.jis +++ b/usr.sbin/httpd/htdocs/manual/mod/directives.html.ja.jis @@ -7,7 +7,7 @@ <title>Apache $B%G%#%l%/%F%#%V(B</title> </head> - <!-- English revision: 1.79 --> + <!-- English revision: 1.82 --> <!-- Background white, links blue (unvisited), navy (visited), red (active) --> <body bgcolor="#ffffff" text="#000000" link="#0000ff" vlink="#000080" alink="#ff0000"> @@ -180,6 +180,8 @@ <li><a href="mod_proxy.html#cachesize">CacheSize</a></li> + <li><a href="core.html#cgicommandargs">CGICommandArgs</a></li> + <li><a href="mod_speling.html#checkspelling" >CheckSpelling</a></li> @@ -333,6 +335,9 @@ <li><a href="core.html#limitexcept" ><LimitExcept></a></li> + <li><a href="core.html#limitinternalrecursion" + >LimitInternalRecursion</a></li> + <li><a href="core.html#limitrequestbody" >LimitRequestBody</a></li> diff --git a/usr.sbin/httpd/htdocs/manual/mod/mod_access.html.en b/usr.sbin/httpd/htdocs/manual/mod/mod_access.html.en index c8f7b2520db..c5d6db86d98 100644 --- a/usr.sbin/httpd/htdocs/manual/mod/mod_access.html.en +++ b/usr.sbin/httpd/htdocs/manual/mod/mod_access.html.en @@ -117,10 +117,14 @@ access. Only complete components are matched, so the above example will match <code>foo.apache.org</code> but it will not match <code>fooapache.org</code>. This configuration will - cause the server to perform a reverse DNS lookup on the + cause the server to perform a double reverse DNS lookup on the client IP address, regardless of the setting of the <a href="core.html#hostnamelookups">HostnameLookups</a> - directive.</dd> + directive. It will do a reverse DNS lookup on the IP address to + find the associated hostname, and then do a forward lookup on + the hostname to assure that it matches the original IP address. + Only if the forward and reverse DNS are consistent and the + hostname matches will access be allowed.</dd> <dt>A full IP address</dt> diff --git a/usr.sbin/httpd/htdocs/manual/mod/mod_access.html.html b/usr.sbin/httpd/htdocs/manual/mod/mod_access.html.html index 37e106318d0..9a5a4eddfac 100644 --- a/usr.sbin/httpd/htdocs/manual/mod/mod_access.html.html +++ b/usr.sbin/httpd/htdocs/manual/mod/mod_access.html.html @@ -119,10 +119,14 @@ access. Only complete components are matched, so the above example will match <code>foo.apache.org</code> but it will not match <code>fooapache.org</code>. This configuration will - cause the server to perform a reverse DNS lookup on the + cause the server to perform a double reverse DNS lookup on the client IP address, regardless of the setting of the <a href="core.html#hostnamelookups">HostnameLookups</a> - directive.</dd> + directive. It will do a reverse DNS lookup on the IP address to + find the associated hostname, and then do a forward lookup on + the hostname to assure that it matches the original IP address. + Only if the forward and reverse DNS are consistent and the + hostname matches will access be allowed.</dd> <dt>A full IP address</dt> diff --git a/usr.sbin/httpd/htdocs/manual/mod/mod_proxy.html b/usr.sbin/httpd/htdocs/manual/mod/mod_proxy.html index 1a31de93967..6e0b7e19c32 100644 --- a/usr.sbin/httpd/htdocs/manual/mod/mod_proxy.html +++ b/usr.sbin/httpd/htdocs/manual/mod/mod_proxy.html @@ -102,6 +102,10 @@ topics</a></h2> <ul> + <li><a href="#forwardreverse">Forward and Reverse Proxies</a></li> + + <li><a href="#examples">Basic Examples</a></li> + <li><a href="#access">Controlling access to your proxy</a></li> @@ -130,6 +134,89 @@ an intranet proxy server?</a></li> </ul> +<h2><a name="forwardreverse" id="forwardreverse">Forward and Reverse Proxies</a></h2> + <p>Apache can be configured in both a <dfn>forward</dfn> and + <dfn>reverse</dfn> proxy mode.</p> + + <p>An ordinary <dfn>forward proxy</dfn> is an intermediate + server that sits between the client and the <em>origin + server</em>. In order to get content from the origin server, + the client sends a request to the proxy naming the origin server + as the target and the proxy then requests the content from the + origin server and returns it to the client. The client must be + specially configured to use the forward proxy to access other + sites.</p> + + <p>A typical usage of a forward proxy is to provide Internet + access to internal clients that are otherwise restricted by a + firewall. The forward proxy can also use caching to reduce + network usage.</p> + + <p>The forward proxy is activated using the <code><a + href="#proxyrequests">ProxyRequests</a></code> directive. + Because forward proxys allow clients to access arbitrary sites + through your server and to hide their true origin, it is + essential that you <a href="#access">secure your server</a> so + that only authorized clients can access the proxy before + activating a forward proxy.</p> + + <p>A <dfn>reverse proxy</dfn>, by contrast, appears to the + client just like an ordinary web server. No special + configuration on the client is necessary. The client makes + ordinary requests for content in the name-space of the reverse + proxy. The reverse proxy then decides where to send those + requests, and returns the content as if it was itself the + origin.</p> + + <p>A typical usage of a reverse proxy is to provide Internet + users access to a server that is behind a firewall. Reverse + proxies can also be used to balance load among several back-end + servers, or to provide caching for a slower back-end server. + In addition, reverse proxies can be used simply to bring + several servers into the same URL space.</p> + + <p>A reverse proxy is activated using the <code><a + href="#proxypass">ProxyPass</a></code> directive or the + <code>[P]</code> flag to the <code><a + href="../mod/mod_rewrite.html#rewriterule">RewriteRule</a></code> + directive. It is <strong>not</strong> necessary to turn + <code><a href="#proxyrequests">ProxyRequests</a></code> on in + order to configure a reverse proxy.</p> + +<h2><a name="examples" id="examples">Basic Examples</a></h2> + + <p>The examples below are only a very basic idea to help you + get started. Please read the documentation on the individual + directives.</p> + + <h3>Forward Proxy</h3><p><code> + ProxyRequests On<br /> + ProxyVia On<br /> + <br /> + <Directory proxy:*><br /> + + Order deny,allow<br /> + Deny from all<br /> + Allow from internal.example.com<br /> + + </Directory><br /> + <br /> + CacheRoot "/usr/local/apache/proxy"<br /> + CacheSize 5<br /> + CacheGcInterval 4<br /> + CacheMaxExpire 24<br /> + CacheLastModifiedFactor 0.1<br /> + CacheDefaultExpire 1<br /> + NoCache a-domain.com another-domain.edu joes.garage-sale.com + </code></p> + + <h3>Reverse Proxy</h3><p><code> + ProxyRequests Off<br /> + <br /> + ProxyPass /foo http://foo.example.com/bar<br /> + ProxyPassReverse /foo http://foo.example.com/bar + </code></p> + <h2><a id="access" name="access">Controlling access to your proxy</a></h2> You can control who can access your proxy via the normal @@ -149,6 +236,18 @@ Allow from yournetwork.example.com <p>For more information, see <a href="mod_access.html">mod_access</a>.</p> + <p>Strictly limiting access is essential if you are using a + forward proxy (using the <code><a + href="#proxyrequests">ProxyRequests</a></code> directive). + Otherwise, your server can be used by any client to access + arbitrary hosts while hiding his or her true identity. This is + dangerous both for your network and for the Internet at large. + When using a reverse proxy (using the <code><a + href="#proxypass">ProxyPass</a></code> directive with + <code>ProxyRequests Off</code>), access control is less critical + because clients can only contact the hosts that you have + specifically configured.</p> + <h2><a id="shortname" name="shortname">Using Netscape hostname shortcuts</a></h2> There is an optional patch to the proxy module to allow @@ -201,7 +300,7 @@ application/octet-stream bin dms lha lzh exe class tgz taz To log in to an FTP server by username and password, Apache uses different strategies. In absense of a user name and password in the URL altogether, - Apache sends an anomymous login to the FTP server, i.e., + Apache sends an anonymous login to the FTP server, i.e., <blockquote><code> user: anonymous<br /> password: apache_proxy@ @@ -262,7 +361,10 @@ application/octet-stream bin dms lha lzh exe class tgz taz useful for an intranet proxy server?</a></h2> <p>An Apache proxy server situated in an intranet needs to - forward external requests through the company's firewall. + forward external requests through the company's firewall + (for this, configure the <a href="#proxyremote">ProxyRemote</a> + directive to forward the respective <em>scheme</em> to + the firewall proxy). However, when it has to access resources within the intranet, it can bypass the firewall when accessing hosts. The <a href="#noproxy">NoProxy</a> directive is useful for specifying @@ -304,7 +406,7 @@ application/octet-stream bin dms lha lzh exe class tgz taz rel="Help"><strong>Compatibility:</strong></a> ProxyRequests is only available in Apache 1.1 and later. - <p>This allows or prevents Apache from functioning as a proxy + <p>This allows or prevents Apache from functioning as a forward proxy server. Setting ProxyRequests to 'off' does not disable use of the <a href="#proxypass">ProxyPass</a> directive.</p> @@ -391,10 +493,16 @@ application/octet-stream bin dms lha lzh exe class tgz taz <pre> ProxyPass /mirror/foo/ http://foo.com/ </pre> - will cause a local request for the + <p>will cause a local request for the <<samp>http://wibble.org/mirror/foo/bar</samp>> to be internally converted into a proxy request to - <<samp>http://foo.com/bar</samp>>. + <<samp>http://foo.com/bar</samp>>.</p> + + <p><strong>Warning:</strong> The <code><a + href="#proxyrequests">ProxyRequests</a></code> directive should + usually be set <strong>off</strong> when using <code + class="directive">ProxyPass</code>. + <hr /> <h2><a id="proxypassreverse" diff --git a/usr.sbin/httpd/htdocs/manual/windows.html.en b/usr.sbin/httpd/htdocs/manual/windows.html.en index 58d1fab2f8b..55c41352c4f 100644 --- a/usr.sbin/httpd/htdocs/manual/windows.html.en +++ b/usr.sbin/httpd/htdocs/manual/windows.html.en @@ -145,16 +145,18 @@ installed on your PC before you can install the Apache runtime distributions. Windows 2000 and Windows ME are both delivered with the Microsoft Installer support, others will need to - download it. Instructions on locating the Microsoft Installer, + download it. For more information, visit the main download + page at <a + href="http://httpd.apache.org/download.cgi">http://httpd.apache.org/download.cgi</a>. + Instructions on locating the Microsoft Installer, as well as the binary distributions of Apache, are found at - <a href="http://httpd.apache.org/dist/httpd/binaries/win32/" - >http://httpd.apache.org/dist/httpd/binaries/win32/</a></p> + <a href="http://www.apache.org/dyn/closer.cgi/httpd/binaries/win32/" + >the win32 download directory on the mirrors.</a></p> <p>The source code is available in the <code>-src.msi</code> distribution, or from the - <a href="http://httpd.apache.org/dist/httpd/" - >http://httpd.apache.org/dist/httpd/</a> - distribution directory as a <code>.zip</code> file. If you plan + <a href="http://www.apache.org/dyn/closer.cgi/httpd/" + >distribution directory</a> as a <code>.zip</code> file. If you plan on compiling Apache yourself, there is no need to install either <code>.msi</code> package. The <code>.zip</code> file contains only source code, with MS-DOS line endings (that is diff --git a/usr.sbin/httpd/htdocs/manual/windows.html.ja.jis b/usr.sbin/httpd/htdocs/manual/windows.html.ja.jis index 29bf4157f47..08be47c9dab 100644 --- a/usr.sbin/httpd/htdocs/manual/windows.html.ja.jis +++ b/usr.sbin/httpd/htdocs/manual/windows.html.ja.jis @@ -7,7 +7,7 @@ <title>Microsoft Windows $B$G$N(B Apache $B$N;HMQ(B</title> </head> - <!-- English revision: 1.57 --> + <!-- English revision: 1.58 --> <!-- Background white, links blue (unvisited), navy (visited), red (active) --> <body bgcolor="#ffffff" text="#000000" link="#0000ff" @@ -145,17 +145,19 @@ $B$3$l$i$N%U%!%$%k$O$=$l$>$l$K40A4$J(B Apache $B%i%s%?%$%`$r4^$s$G$$$^$9!#(B Apache $B%i%s%?%$%`G[I[$r%$%s%9%H!<%k$9$kA0$K(B Microsoft Installer version 1.10 $B$,(B PC $B$K%$%s%9%H!<%k$5$l$F$$$J$1$l$P$J$j$^$;$s!#(BWindows - 2000 $B$*$h$S(B Windows Me $B$G$O(B Microsoft Installer $B$,I8=`$G(B + 2000 $B5Z$S(B Windows Me $B$G$O(B Microsoft Installer $B$,I8=`$G(B $B%5%]!<%H$5$l$F$$$^$9$,!"B>$G$O$=$l$r%@%&%s%m!<%I$9$kI,MW$,$"$j$^$9!#(B + $B$5$i$J$k>pJs$O%a%$%s$N%@%&%s%m!<%I%Z!<%8(B <a + href="http://httpd.apache.org/download.cgi" + >http://httpd.apache.org/download.cgi</a> $B$K9T$C$F$/$@$5$$!#(B Microsoft Installer $B$r8+$D$1$k<j=g$O(B Apache $B$N%P%$%J%jG[I[$HF1MM!"(B - <a href="http://httpd.apache.org/dist/httpd/binaries/win32/" - >http://httpd.apache.org/dist/httpd/binaries/win32/</a> - $B$K8+$D$+$j$^$9(B</p> + <a href="http://www.apache.org/dyn/closer.cgi/httpd/binaries/win32/" + >$B%_%i!<%5%$%H$N(B win32 $B%@%&%s%m!<%I%G%#%l%/%H%j(B</a>$B$K8+$D$+$j$^$9(B</p> <p>$B%=!<%9%3!<%I$O(B <code>-src.msi</code> $B$NG[I[$^$?$O(B <a - href="http://httpd.apache.org/dist/httpd/" - >http://httpd.apache.org/dist/httpd/</a> $BG[I[%G%#%l%/%H%j$K$"$k(B - <code>.zip</code> $B%U%!%$%k$+$iF~<j2DG=$G$9!#$b$7(B Apache + href="http://www.apache.org/dyn/closer.cgi/httpd/" + >$BG[I[%G%#%l%/%H%j(B</a> $B$K$"$k(B <code>.zip</code> + $B%U%!%$%k$+$iF~<j2DG=$G$9!#$b$7(B Apache $B$r<+J,$G%3%s%Q%$%k$9$k$D$b$j$J$i!"(B<code>.msi</code> $B%Q%C%1!<%8$r(B $B%$%s%9%H!<%k$9$kI,MW$O$^$C$?$/$"$j$^$;$s!#(B<code>.zip</code> $B%U%!%$%k$O!"(BMS-DOS $B$N2~9T(B (.tar.gz $B$d(B .tar.Z $B$GG[I[$5$l$k(B unix |