DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:date:from:to:subject:message-id:mime-version
	:content-type; q=dns; s=default; b=sOGe2umXJU6ZImT64Sw9cv2hqZ96G
	Deuiyp4WcoMYY2ttnVZXF+k8Ud19BLU9eVTInOMpwBN8ApTNaV3sH4yWcJ3MC21H
	NL+XEF7y5vIYzgF+aEx5s56ZyK3day8yZWkjFwVl0vaGdwlrgJjpOuLl/+/I9vwK
	INietCfBBozZZQ=
Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm
Sender: cygwin-owner@cygwin.com
Mail-Followup-To: cygwin@cygwin.com
Date: Mon, 15 Jul 2013 14:16:00 -0500 (CDT)
From: "L. V. Lammert" <lvl@omnitec.net>
To: Cygwin Mailing List <cygwin@cygwin.com>
Subject: Problem binding OpenSSH_6.2p2 to IPV4 stack
Message-ID: <Pine.BSO.4.53.1307151348420.32610@Mail.omnitec.net>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII

After troubleshooting an AutoSSH problem last week, it appears that on
this 2003R2 box sshd cannot bind to the IPV4 stack! Rather, with the
default configuration it binds to IPV6 (and supports a loopback connection
fine), but a remote connection fails. When sshd is forced to bind IPV4
("Addressfamily inet"), sshd cannot start.

With default sshd config, connection to the autossh tunnel from a remote
system produces:

[remote system]
ssh_exchange_identification: Connection closed by remote host

[2003R2 server]
debug1: channel 2: connection failed: Connection refused
connect_to 127.0.0.1 port 2206: failed.
debug1: channel 2: free: ::1, nchannels 3

Any pointers on troubleshooting would be greatly appreciated, ..

	TIA!

	Lee

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple