summaryrefslogtreecommitdiff
path: root/libexec/tcpd/BLURB
diff options
context:
space:
mode:
authorJason Downs <downsj@cvs.openbsd.org>1997-06-01 05:21:41 +0000
committerJason Downs <downsj@cvs.openbsd.org>1997-06-01 05:21:41 +0000
commit98ff0b975966dd364e0ac65ea69a47428f4cb30d (patch)
tree27810eb702e2c2af8dab86b33ef4cb3d1f939f19 /libexec/tcpd/BLURB
parent35e2674058795ade9d8ca6058f815dfd7d1ee384 (diff)
A few changed from tcp_wrappers 7.6
Diffstat (limited to 'libexec/tcpd/BLURB')
-rw-r--r--libexec/tcpd/BLURB26
1 files changed, 12 insertions, 14 deletions
diff --git a/libexec/tcpd/BLURB b/libexec/tcpd/BLURB
index cc95cf74285..8d82fa7826f 100644
--- a/libexec/tcpd/BLURB
+++ b/libexec/tcpd/BLURB
@@ -1,5 +1,5 @@
-$OpenBSD: BLURB,v 1.1 1997/02/26 06:00:30 downsj Exp $
-@(#) BLURB 1.27 97/02/12 02:13:17
+$OpenBSD: BLURB,v 1.2 1997/06/01 05:21:39 downsj Exp $
+@(#) BLURB 1.28 97/03/21 19:27:18
With this package you can monitor and filter incoming requests for the
SYSTAT, FINGER, FTP, TELNET, RLOGIN, RSH, EXEC, TFTP, TALK, and other
@@ -12,20 +12,18 @@ requested service; the wrappers do not exchange information with the
client or server applications, and impose no overhead on the actual
conversation between the client and server applications.
-This patch upgrades the tcp wrappers version 7.4 source code to version
-7.5. Highlights of this release:
-
- - Support for more UNIX system types.
-
- - Improved protection against IP spoofing attacks with source-routed
- TCP connections, by refusing them. This protection is not enabled by
- default.
+This patch upgrades the tcp wrappers version 7.5 source code to
+version 7.6. The source-routing protection in version 7.5 was not
+as strong as it could be. And all this effort was not needed with
+modern UNIX systems that can already stop source-routed traffic in
+the kernel. Examples are 4.4BSD derivatives, Solaris 2.x, and Linux.
This release does not introduce new features. Do not bother applying
-this patch when you built your current tcp wrapper without enabling the
-KILL_OPTIONS compiler switch. The patch is not useful for obsolete UNIX
-versions that pre-date 4.4BSD, such as SunOS 4. Such systems are unable
-to receive source-routed connections and are therefore not vulnerable
+this patch when you built your version 7.x tcp wrapper without
+enabling the KILL_IP_OPTIONS compiler switch; when you can disable
+IP source routing options in the kernel; when you run a UNIX version
+that pre-dates 4.4BSD, such as SunOS 4. Such systems are unable to
+receive source-routed connections and are therefore not vulnerable
to IP spoofing attacks with source-routed TCP connections.
A complete change log is given in the CHANGES document. As always,