Re: [Oscar-users] PBS, X forwarding for interactive jobs

[Jeremy Enos]

If nodes cannot address or access the external network, then you will not 
be able to export a display to the external network.  Pfilter should set 
things up so they can access the external network via NAT on the head node 
though.  But if you can't ping the external network, then that must not be 
the way it's currently configured.  Is there a reason you want to block 
compute nodes from having one-way access to the external 
network?  (remember that pfilter's NAT won't allow externally initiated 
connections, so you're still safe)

        Jeremy

At 10:00 AM 2/19/2004, Danny Sternkopf wrote:
HI,

On Tue, Feb 17, 2004 at 10:16:35AM -0600, Jeremy Enos wrote:
> Check to make sure your DISPLAY variable is set in your interactive job
> session (I'm sure you've already done this).  Also, can you ping your
> display host from the interactive job?
No I can't ping my local PC. That could be the point. What kind of connection
does PBS if you get an interactive session(shell)? It's no ssh. Is it a a 
special
connection between the forked pbs_mom beloning to your job and the 
pbs_server on
the submit host?  So there must be a other way to forward X.

Is it possible without allowing all nodes to access the external network 
for example?

regards,

Danny
--
Danny Sternkopf                         [EMAIL PROTECTED]
High Performance Computing Europe GmbH  http://www.hpce.nec.com
European High Performance Computing Technology Center  (EHPCTC)
Stuttgart, Germany phone: +49-711-78055-21 fax: +49-711-6877145
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