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To: cygwin@cygwin.com
From: Andrew Schulman <schulman.andrew@epamail.epa.gov>
Subject: Re: Troubleshooting AutoSSH
Date: Fri, 12 Jul 2013 13:34:41 -0400
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> debug1: Local connections to LOCALHOST:5661 forwarded to remote address
> 127.0.0.1:6661
> debug1: Local forwarding listening on ::1 port 5661.
> 				  ^^^^^^^^^
> 
> <connection attempt fails with "Connection closed by ::1">!!!!
> 
> It looks like the problem is that AutoSSH is binding to IPV6, *NOT*
> IPv4! sshd is set to "AddressFamily inet", .. so the problem appears to be
> that AutoSSH is not binding properly.
> 
> Don't see anything in the man pages or a quick search, .. how would one
> force AutoSSH to bind to IPv4? IPV6 is installed on this box, but not
> used.

Hi Lee.  Okay, that does seem to narrow it down.

You're right that autossh doesn't have any ipv4 options.  It hasn't been
updated in a few years, and I think it's just not ipv6-aware yet.

Does it help if you include the -4 switch to ssh, to force it to use ipv4
only?  It's worth a try.


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