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Re: cygwin's ssh with Xwin
- From: Igor Pechtchanski <pechtcha at cs dot nyu dot edu>
- To: Matthew Bailey <jmb at erc dot msstate dot edu>
- Cc: cygwin-xfree at cygwin dot com, <cygwin at cygwin dot com>
- Date: Thu, 10 Oct 2002 15:54:37 -0400 (EDT)
- Subject: Re: cygwin's ssh with Xwin
- Reply-to: cygwin-xfree at cygwin dot com
On Thu, 10 Oct 2002, Matthew Bailey wrote:
> I have the latest version of Cygwin and ssh. I am trying to display
> another program remotely which I'm using Xwin32 5.2 to allow the display.
>
> The server always responds Can't connect to display :"0.0".
>
> I looked at my man pages for ssh and used the flag -X to enable forwarding
> of my X11. But, the server still responds the same, and will not allow me
> to display my program.
>
> Can anyone help me with this problem?
>
> Thanks,
> M. Bailey
I'm sure this'll get redirected to cygwin-xfree, so I'm replying straight
there.
ssh, when run with X forwarding, sets up a special display on the target
machine. The value of the DISPLAY variable should reflect that.
There are a couple of possibilities:
1) You are running 'ssh -X' from a bash prompt that does not have DISPLAY
set. In this case ssh will silently ignore the -X option and will not set
up X forwarding. To fix this, set DISPLAY to "localhost:0.0" before
invoking ssh.
2) (more likely from your symptoms) You have a login script that
automatically sets the DISPLAY to :0.0 on the target machine, overriding
the ssh-set value. To fix this, find which script does that (could be
.bashrc, .profile, some other rc script, could even be /etc/profile if
your system administrator is sadistic/incompetent), and bracket the line
that assigns DISPLAY by (for sh/ksh/bash) 'if [ -z "$DISPLAY" ]; then' and
'fi'.
Hope this helps,
Igor
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