On Karmic, to allow other PCs to open and X-Window on a station, one had to edit /etc/gdm.conf and change DisallowTCP to false. That file no longer exists on Lucid. I tried changing an entry in /etc/gdm/gdm.schemas (XML format) but that did not make a difference. Any ideas on where to go for this?
Make the following changes
Dont forget to write "xhost +remoteip" in your local machine and "export DISPLAY=localip:0" in the remote machine.
This works for me on natty but not on maverick...
The natty machine has /etc/gdm/custom.conf but no /etc/gdm/schemas, and I only had to change /etc/gdm/custom.conf to include DisallowTCP=false in [security] section to allow remote xterm display on the natty machine (and xhost +).
However, the maverick machine (on the same network) has /etc/gdm/schemas in addition, so I changed "true" to "false" in the following section:
Also, /etc/X11/xinit/xserverrc doesn't appear to be utilized in starting gdm, but anyway, I believe it's listening on port 6000 -- here's the result of netstat -an | grep -F 6000 on either machine:
tcp 0 0 0.0.0.0:6000 0.0.0.0:* LISTEN
But I can't display a remote xterm on the maverick from the natty, while I can on the natty from the maverick...
Of course, ssh -X works both ways, but that's not what I need...
On Karmic, you can change this entry in /etc/gdm/custom.conf, inside [security] section.