to enable the redirection of the GUI on a linux server towards your descktop with unbuntu 11.10 is necessary to make some changes.
11.10 Ubuntu version no longer uses the GDM (GNOME Display Manager) but uses lightDM (Light Display Manager), which by default launches the 'X Server with the -nolisten tcp parameters, which prevents the reception in the GUI.
is sufficient to enable it edit the file /etc/lightdm/lightdm.conf
xserver-command = X
xserver-allow-tcp = true
restart the lightDM with the command
sudo restart lightdm.
verify that the X Server is listening on port 6000 with the command:
tcp 0 0 0.0.0.0:902 0.0.0.0:* LISTEN -
tcp6 0 0 :::6000 :::* LISTEN -
tcp6 0 0 ::1:631 :::* LISTEN -
if everything is OK, you can open ssh into your remote server and run
export DISPLAY =<your IP>: 0.0
Now all that has a GUI will be redirected to your monitor.
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