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authorHenning Brauer <henning@cvs.openbsd.org>2003-08-21 13:10:21 +0000
committerHenning Brauer <henning@cvs.openbsd.org>2003-08-21 13:10:21 +0000
commit0a50fcbf3995ed3b777d579b957bd652a5884b0e (patch)
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parent8d57b5ec76a164dbed4b00d95975a76997c7ad3b (diff)
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+ OVERVIEW OF NEW FEATURES IN APACHE 1.2
+
+New features with this release, as extensions of the Apache functionality
+For more information, see the documentation included with this release
+(htdocs/manual/) or http://www.apache.org/docs/
+
+In addition to a number of bug fixes and internal performance
+enhancements, Apache 1.2 has the following specific new user
+features:
+
+
+ *) HTTP/1.1 Compliance
+ Aside from the optional proxy module (which operates as HTTP/1.0),
+ Apache is conditionally compliant with the HTTP/1.1 proposed standard,
+ as approved by the IESG and the IETF HTTP working group.
+ HTTP/1.1 provides a much-improved protocol, and should allow for
+ greater performance and efficiency when transferring files. Apache
+ does, however, still work great with HTTP/1.0 browsers. We are very
+ close to being unconditionally compliant; if you note any deviance
+ from the proposed standard, please report it as a bug.
+
+ *) eXtended Server Side Includes (XSSI)
+ A new set of server-side include directives allows the user to
+ better create WWW pages. This includes number of powerful new
+ features, such as the ability to set variables and use conditional
+ HTML.
+
+ *) File-based and Regex-enabled Directive Sections
+ The new <Files> section allows directives to be enabled based on
+ full filename, not just directory and URL. In addition, <Files>
+ sections can appear in .htaccess files. <Files>, along with
+ <Directory> and <Location>, can also now be based on regular
+ expressions, not just simple prefix matching.
+
+ *) Browser-based Environment Variables
+ Environment variables can now be set based on the User-Agent
+ string of the browser. Combined with XSSI, this allows you to
+ write browser-based conditional HTML documents.
+
+ *) SetUID CGI Execution
+ Apache now supports the execution of CGI scripts as users other
+ than the server user. A number of security checks are built in to
+ try and make this as safe as possible.
+
+ *) URL Rewriting Module
+ The optional mod_rewrite module is now included. This module can
+ provide powerful URL mapping, using regular expressions. There's
+ nothing this module can't do!
+
+ *) Enhanced, Configurable Logging
+ The optional mod_log_config included with earlier versions of
+ Apache is now standard, and has been enhanced to allow logging of
+ much more detail about the transaction, and can be used to open
+ more than one log at once (each of which can have a different log
+ format).
+
+ *) User Tracking (Cookies) Revisions
+ The mod_cookies included with previous versions of Apache has been
+ renamed mod_usertrack, to more accurately reflect its function
+ (some people inadvertently thought it enabled cookie support in
+ Apache, which is not true - Apache supports the use of cookies
+ directly). It is also now possible to disable the generation of
+ cookies, even when the cookie module is compiled in. Also, an
+ expiry time can be set on the cookies.
+
+ *) Multiple IPs in <VirtualHost>
+ The <VirtualHost> directive can now take more than one IP address
+ or hostname. This lets a single vhost handles requests for
+ multiple IPs or hostnames.
+
+ *) CGI Debugging Environment
+ ScriptLog allows you to now set up a log that records all input
+ and output to failed CGI scripts. This includes environment
+ variables, input headers, POST data, output, and more. This makes
+ CGI scripts much easier to debug.
+
+ *) Resource Limits for CGI Scripts
+ New directives allow the limiting of resources used by CGI scripts
+ (e.g. max CPU time). This is helpful in preventing 'runaway' CGI
+ processes.
+
+ *) Redirect Directive Can Return Alternate Status
+ The Redirect directive can return permanent or temporary redirects,
+ "Gone" or "See Other" HTTP status. For NCSA-compatibility,
+ RedirectTemp and RedirectPermanent are also implemented.
+
+ *) Graceful Restarts
+ Apache can re-read the config files and re-open log files without
+ terminating transactions in progress.
+
+ *) Simplified Compilation
+ The process of configuring Apache for compilation has been
+ simplified.
+
+ *) Add or Remove Options
+ The Options directive can now add or remove options from those
+ currently in force, rather than always replacing them.
+
+ *) Command-line Help
+ The -h command-line option now lists all the available directives.
+
+ *) Optional Headers Module to Set or Remove HTTP Headers
+ The optional mod_headers module can be used to set custom headers
+ in the HTTP response. It can append to existing headers, replace
+ them, or remove headers from the response.
+
+ *) Conditional Config Directives
+ A new <IfModule> section allows directives to be enabled only if a
+ given module is loaded into the server.
+
+ *) Authorization Directives Now Use NCSA-style Syntax
+ The AuthUserFile, AuthGroupFile and AuthDigestFile commands now
+ have a syntax compatible with the NCSA server.
+
+ *) Optional Proxy Module
+ An improved FTP, HTTP, and CONNECT mode SSL proxy is included with
+ Apache 1.2. Some of the changes visible to users:
+
+ - Improved FTP proxy supporting PASV mode
+ - CONNECT mode ports are configurable from a list
+ - NoCache * directive for disabling proxy caching
+ - Numerous bug fixes
+
+ *) Optional Example Module
+ An example module that demonstrates many of the aspects of the
+ API is now included with Apache as of version 1.2. It can be
+ used as a base for those who wish to write their own Apache
+ modules.