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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