Re: question on x windows
- From: "Romeo Theriault" <romeotheriault@xxxxxxxxx>
- Date: Wed, 27 Feb 2008 11:34:14 -0500
On Tue, Feb 26, 2008 at 9:01 AM, Aaron Bliss <abliss@xxxxxxxxxxxxx> wrote:
Hi everyone,
I have a user who would like to connect to x windows on one of our linux
servers. I'm not use to offering up x windows to any end users (I'm a
command line guy) so I'm struggling with this a bit. I've installed x
font server, daemon is running, and I installed xfce. Server is running
at run level 5 right now. I'm not sure what ports I need to open on the
firewall to allow them to connect to the server or what other config
files that might be preventing them from displaying an x session on
their desktop (they have a windows x server running on their machines).
I know that x windows sessions are insecure, so I would also be in favor
of forwarding the session over ssh, but I would like to know how to
connect with and without ssh to the xfs server. Thanks for your help.
Aaron
Here are some notes I've kept on how to setup remote X11 forwarding.
Remote X Display
You need to make sure that you have your local X display set to accept
remote X connections. On a Fedora {red hat?? probably the same} box you need
to edit the the /etc/gdm/custom.conf and set the DissallowTCP=false:
[security]
# Adding the following to the [security] section will
# allow TCP connections to the X server
DisallowTCP=false
- Then you need to restart gdm. This can be done by the gdm-restart
command. Note: Running gdm-restart while in a X11 session will kill your
session and all of your applications running in it.
- Next you need to make sure that your firewall allows connections to
port 6000 which is the X11 port.
- Next on the local machine type: xhost +remote_machine.host.name.edu
# xhost +remote_host.domain.edu
- Then on the remote machine in a bash shell type:
# export DISPLAY=local_host.name.edu:0.0
- You should now be able to start any remote X11 application on the
remote host and have it display on your local machine.
# xterm &
Should popup a xterm on your local display.
--
Romeo Theriault
System Administrator
Information Technology Services
Ph#: 207-561-3517
Em@: romeo.theriault@xxxxxxxxx
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