Re: [PLUG] X Forwarding Problem

[Casey Bralla <MailList@NerdWorld.org>]

Stephen, the DISPLAY variable is NOT being set for the remote session (it is 
set for both the local computer and when locally logged on to the remote 
computer.)

Do you know how I get it set for the ssh session?  I haven't found any docs 
for that.


Thanks!


On Sunday 30 November 2008 2:47:15 pm Stephen Gran wrote:
> On Sun, Nov 30, 2008 at 02:03:20PM -0500, Casey Bralla said:
> > I'm trying to run remote X applications, something I have done lots of
> > times in the distant past.  I discovered that ssh has added a few more
> > security features, which I think I have delt with.  Here is an example of
> > the error I'm getting:
> >
> > debug1: Requesting X11 forwarding with authentication spoofing.
> > Last login: Sun Nov 30 13:52:36 EST 2008 from localhost on pts/20
> > Last login: Sun Nov 30 13:55:58 2008 from LocalComputer.nerdworld.org
> > RemoteComputer ~ # xclock
> > Error: Can't open display:
> >
> > So ssh appears to be setting up port forwarding properly.  I have added
> > the line "xhost +" to my .xinitrc to allow foreign screens to be used.  I
> > don't see anything obvious in the logs
> >
> > Anybody have any ideas where to look for a solution?
>
> Run with -vvv, you should see something like:
> debug2: x11_get_proto: /usr/bin/X11/xauth  list :0.0 2>/dev/null
> debug1: Requesting X11 forwarding with authentication spoofing.
> debug2: channel 0: request x11-req confirm 0
> debug2: client_session2_setup: id 0
> debug2: channel 0: request pty-req confirm 1
>
> Then echo $DISPLAY.  If you don't have DISPLAY set, check that X11
> forwarding is enabled in sshd_config, and check that xauth and so on
> (package xbase-clients in Debian etch) is installed.



-- 


Casey Bralla
Chief Nerd in Residence
The NerdWorld Organisation
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