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Old 02-20-2010, 05:29 PM   #1
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Registered: Feb 2010
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Remote X display with debian


This is my first post to LinuxQuestions. I'm absolutely certain this is a ridiculously newbie question with a simple answer, but it's got me totally flummoxed, so here we go.

Here's the short version:

I have three boxes with lenny debian recently installed. I'd like to be able to display X apps running on host1 and displaying on host2. "xhost +" would do the trick for me if I could get it to work but as far as I can tell it does nothing. (BTW, I'm aware of the security risks. This is not a concern for me. I'm safely behind a good firewall. I'm also aware of "ssh -X" but that won't quite solve my problem. See the long version below.) I suspect that Debian secures the xhost command out of the box in some way but I can't seem to figure out what it is. If that is true and someone can show me how to reset it, or direct me to appropriate documentation I think that would solve my problem.

Here's the long version:

What I really want to do is play xbattle with my kids but I need to be able to display the board to three different screens. In xbattle the command line is:

% xbattle -red me -blue host1:0 -green host2:0 {and more stuff of no consequence to my question}

This opens a game board for player red locally, player blue on host1 and player green on host2. Or at least it should. If there is a way to make this work with "ssh -X" (or anything else for that matter) I'll be happy to use that instead, but so far as I can tell "ssh -X" only lets me redirect the display back to the one I ssh'd from whereas I need to direct to multiple displays to run xbattle.

Any help will be appreciated.
Old 02-20-2010, 05:43 PM   #2
Registered: Oct 2009
Location: South America - Paraguay
Distribution: Debian 5 - Slackware 13.1 - Arch - Some others linuxes/*BSDs through KVM and Xen
Posts: 329

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Quick answer: If you're using a full Debian installation, you probably have a HOWTO you can access this way:
$ zless /usr/share/doc/HOWTO/en-txt/XDMCP-HOWTO.gz
to do what you want fast.
Other HOWTO:
$ zless /usr/share/doc/HOWTO/en-txt/Xterminals.gz

Last edited by HasC; 02-20-2010 at 05:45 PM.
Old 02-20-2010, 10:59 PM   #3
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Registered: Feb 2010
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Thanks. Reading those files got me going in the right direction.

It took a while but it turns out that all I had to do was use gdmsetup to kill the "nolisten tcp" option when starting X11.

Last edited by ecb5; 02-20-2010 at 11:29 PM.


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