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Old 07-21-2004, 07:47 AM   #1
Registered: Aug 2003
Location: Oz
Distribution: Gentoo - Debian
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Environment Variable: how to change env DISPLAY in Redhat 9

Hello all,

This is a continuation of my post to the networking forum:

See here

because it has now become more of a general issue I think (and I got no clues in networking).

Anyway can anybody tell me how to change the DISPLAY environment variable in redhat 9?

I want to change it from localhost:10.0 to or :10.0

the command setenv does not work in bash, so if I change to csh and then update env with

setenv DISPLAY


setenv DISPLAY :10.0

it appears to change the variable but only lasts until I exit csh, then when I check env in bash the DISPLAY value has gone back to localhost:10.0 ??

I tried export also, that didnt seem to work either...

Does anyone know what might be happening?

Old 07-21-2004, 04:07 PM   #2
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Registered: Sep 2002
Location: Nashville, TN
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The bash equivalent is:
export DISPLAY=


export DISPLAY
Old 07-21-2004, 04:15 PM   #3
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Registered: Mar 2004
Location: Wales, UK
Distribution: Debian, Ubuntu
Posts: 1,075

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Don't force it - SSH automatically sets the $DISPLAY variable when it does X forwarding, and if that's not happening then I would check that the system SSH config is OK, and that you don't have a ssh_config in your home directory to override the defaults. There's no reason why you can't reinstall SSH to get a clean setup.

X forwarding definitely works out of the box on Fedora Core 1 & 2, without requiring -X to force it.

I notice that you specify csh, rather than bash. You could try setting up a clean account with bash, just in case the environment variable handling in csh is not working right. I doubt that many people test csh on RH...


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