[GE users] qrsh X connection forwarded by ssh?

jewellc chris.jewell at warwick.ac.uk
Sun Mar 1 13:19:36 GMT 2009


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Hi,

I have a quick, and possible naive, question to do with X forwarding in GE6.2 (Linux).
 I want to be able to log into my frontend node via ssh from a remote client (also
Linux), and run a graphical application on an execution node using qrsh.

If I were logged in at the frontend node console, I would type something like:

> qrsh xclock -display `hostname --fqdn`$DISPLAY

and the display (here xclock) would pop up on my desktop.  However, if I ssh into the
frontend node from a remote client (eg my office), I don't seem to be able to get ssh
to forward the display:

remote_client> ssh -Y frontend
...
frontend> qrsh xclock `hostname --fqdn`$DISPLAY
Error: Can't open display: frontend:10.0
frontend>

I'm assuming that this is because no X-server is running on the frontend node, but
shouldn't ssh forward the display to my remote client?  Is there a way to circumvent
this whilst retaining the GE6.2 builtin qrsh system?

Thanks,

Chris

- --
Chris Jewell, MSc, BSc(Hons), BVSc, MRCVS
Dept of Statistics
University of Warwick
Coventry
CV4 7AL
UK
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