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Date:      Tue, 12 Jul 2011 07:22:55 +0100
From:      Frank Shute <frank@shute.org.uk>
To:        perryh@pluto.rain.com
Cc:        freebsd-questions@freebsd.org
Subject:   Re: ssh -X (X11 forwarding) not working from 6.1 to 8.1
Message-ID:  <20110712062255.GA45128@orange.esperance-linux.co.uk>
In-Reply-To: <4e1c1f5f.LsZHLb8pZocKlPVV%perryh@pluto.rain.com>
References:  <4e1c1f5f.LsZHLb8pZocKlPVV%perryh@pluto.rain.com>

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On Tue, Jul 12, 2011 at 03:18:07AM -0700, perryh@pluto.rain.com wrote:
>
> DISPLAY is not getting set in a remote shell started by "ssh -X".
>=20
>   $ echo $DISPLAY
>   :0.0
>   $ ssh -X [server] 'echo DISPLAY=3D%$DISPLAY%'
>   DISPLAY=3D%%
>=20
> How would I go about debugging this?
>=20
> DISPLAY _is_ set correctly on the ssh client -- I am running in
> an xterm there, and can successfully start another (local) one --
> and the word DISPLAY is not present in any of the shell startup
> files (.bash*, .cshrc, .login, .profile, .shrc) on either the
> ssh client or the ssh server.
>=20
> The ssh client is FreeBSD 6.1 and the ssh server is FreeBSD 8.1.
>=20
> It does work correctly in the other direction (using the 8.1 system
> as the ssh client and the 6.1 system as the ssh server), and I can
> run X11 programs on the 8.1 system, displaying on the 6.1 system,
> provided I set DISPLAY appropriately on the 8.1 system.  It's only
> the ssh X11 forwarding that's broken, and only in one direction.

Have you tried putting:

DISPLAY=3D:0.0

in ~/.ssh/environment on the machine that's not setting DISPLAY
properly?

Regards,

--=20

 Frank

 Contact info: http://www.shute.org.uk/misc/contact.html



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