full-disclosure - Re: Linux: telnet/ssh and other clients can connect to wrong host in case of mixed IPv4/IPv6 environment and search suffices are used in /etc/resolv.conf

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Message-Id: <200607230204.k6N24hEP019288@turing-police.cc.vt.edu>
Date: Sat, 22 Jul 2006 22:04:43 -0400
From: Valdis.Kletnieks@...edu
To: Peter Bieringer <pb@...ringer.de>
Cc: Maillist full-disclosure <full-disclosure@...ts.grok.org.uk>
Subject: Re: Linux: telnet/ssh and other clients can connect
	to wrong host in case of mixed IPv4/IPv6 environment and search
	suffices are used in /etc/resolv.conf

On Sat, 22 Jul 2006 16:09:34 +0200, Peter Bieringer said:

> Linux / Fedora Core 5 (glibc-2.4-8):

Known deficiency in glibc. Code to do RFC3484 precedence tables landed
in Fedora Rawhide the first half of May and is in FC6-test.  I don't know
the status of that glibc code landing in RHEL 5.0.

Bugzilla: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=190495

http://people.redhat.com/drepper/linux-rfc3484.html for the how-and-why.

Short-form answer:  Once the glibc code lands on your system,  you should be
able to just do this:

# cp /etc/share/doc/glibc-common-2.<mumble>/gai.conf /etc
# vi /etc/gai.conf

and configure whatever flavor of precedence you wanted for your particular
network configuration.
and tell it what order you want addresses tried on

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