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Date:      Fri, 31 May 2002 16:11:34 +0200
From:      Rahul Siddharthan <rsidd@online.fr>
To:        John Polstra <jdp@polstra.com>
Cc:        stable@freebsd.org
Subject:   Re: ssh + X11 forwarding = a hung ssh process
Message-ID:  <20020531161134.E46325@lpt.ens.fr>
In-Reply-To: <20020530170501.A37186-100000@snafu.adept.org>

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John Polstra wrote:
> It only happens when protocol version 2 is used.  Try forcing that
> with "ssh -2 ...", and there's a good chance you'll see the problem.

I think it's a problem in OpenSSH 2.9 but not in 3.x.  It doesn't seem
specific to FreeBSD.

ssh -2 from FreeBSD 4-stable to FreeBSD 4-stable:                hangs
ssh -2 from FreeBSD 4-stable to Linux with OpenSSH (2.9 or 3.1): hangs
ssh -2 from FreeBSD 4-stable to FreeBSD with commercial SSH2:    no hang
ssh -2 from Linux (OpenSSH 3.1p1) to other machines:             no hang
ssh -2 from Linux (OpenSSH 2.9p1) to FreeBSD :                   hangs
ssh -2 from Linux (OpenSSH 2.9p1) to Linux (OpenSSH 3.x):        hangs

I don't have a FreeBSD machine with OpenSSH 3.x installed, but I
suspect it will work ok...

- Rahul

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