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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:#1F497D">My users need to be able to do X forwarding from the NX host. DISPLAY needs to include the hostname in order for our compute farm nodes to know where to send X to.
The NX host serves as a linux desktop from where “interactive” jobs are launched to a compute farm which are then expected to display back on the NX host. ssh –X is not an option.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:#1F497D">I thought I stumbled across documentation suggesting sourcing ~/.tcshrc was not done with NX, my limited experiments would suggest this is true. However I admit to
being a novice tcsh user and will continue to test. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:#1F497D">The following does not do what I expect when one launches an NX session with tcsh<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:#1F497D">~$ cat .tcshrc
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:#1F497D">#!/bin/tcsh<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:#1F497D">setenv DISPLAY ${HOSTNAME}${DISPLAY}<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:#1F497D">Is there no global NX setting to change the behavior of $DISPLAY to include $HOSTNAME?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:#1F497D">Mark<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> freenx-knx-bounces@kde.org [mailto:freenx-knx-bounces@kde.org]
<b>On Behalf Of </b>chris@ccburton.com<br>
<b>Sent:</b> Sunday, October 23, 2011 9:47 PM<br>
<b>To:</b> User Support for FreeNX Server and kNX Client<br>
<b>Subject:</b> Re: [FreeNX-kNX] NX session $DISPLAY set to ":$PORT_NUM", how to configure it to '$HOSTNAME:$PORT_NUM'?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><br>
<tt><span style="font-size:10.0pt">freenx-knx-bounces@kde.org wrote on 20/10/2011 08:16:42:</span></tt><span style="font-size:10.0pt;font-family:"Courier New""><br>
<br>
<tt>> I need DISPLAY to be set to $HOSTNAME:$PORT_NUMBER in order to </tt><br>
<tt>> enable X forwarding to the NX host.</tt></span> <br>
<br>
<tt><span style="font-size:10.0pt">Why?? What's wrong with localhost?? (IPv6 in /etc/hosts maybe???)</span></tt>
<br>
<br>
<tt><span style="font-size:10.0pt">> I can accomplish this for bash </span></tt><span style="font-size:10.0pt;font-family:"Courier New""><br>
<tt>> users by placing the following in ~/.bashrc</tt></span> <br>
<tt><span style="font-size:10.0pt">> </span></tt> <br>
<tt><span style="font-size:10.0pt">> export DISPLAY=${HOSTNAME}${DISPLAY}</span></tt>
<br>
<tt><span style="font-size:10.0pt">> </span></tt> <br>
<tt><span style="font-size:10.0pt">> e.g.:</span></tt> <br>
<tt><span style="font-size:10.0pt">> $ echo $DISPLAY</span></tt> <br>
<tt><span style="font-size:10.0pt">> :1001</span></tt> <br>
<tt><span style="font-size:10.0pt">> $ export DISPLAY=$HOSTNAME$DISPLAY</span></tt>
<br>
<tt><span style="font-size:10.0pt">> $ echo $DISPLAY</span></tt> <br>
<tt><span style="font-size:10.0pt">> myhost:1001</span></tt> <br>
<tt><span style="font-size:10.0pt">> </span></tt> <br>
<tt><span style="font-size:10.0pt">> Unfortunately this cannot be done for tcsh/csh users, since it
</span></tt><span style="font-size:10.0pt;font-family:"Courier New""><br>
<tt>> appears NX does not source ~/.cshrc</tt></span> <br>
<br>
<tt><span style="font-size:10.0pt">NX doesn't need to.</span></tt> <br>
<br>
<tt><span style="font-size:10.0pt">Upon being lauched, tcsh/csh always runs ~/.tcshrc (if it</span></tt>
<br>
<tt><span style="font-size:10.0pt">exists or else ~/.cshrc if it exists), regardless of what</span></tt>
<br>
<tt><span style="font-size:10.0pt">kicks it off . . .</span></tt> <br>
<tt><span style="font-size:10.0pt">unless you are telling it not to eg. tcsh -f</span></tt>
<br>
<br>
<tt><span style="font-size:10.0pt">Do you maybe have a messy line in ~/.cshrc which is</span></tt>
<br>
<tt><span style="font-size:10.0pt">stoppingif it running correctly.</span></tt> <br>
<br>
<tt><span style="font-size:10.0pt">I can run NX quite happily using tcsh without changing</span></tt>
<br>
<tt><span style="font-size:10.0pt">anything.</span></tt> <br>
<br>
<tt><span style="font-size:10.0pt">[SNIP]</span></tt><o:p></o:p></p>
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