I am running Snow Leopard OS X 10.6 and I have X11 installed. I also have ubuntu 10.04 LTS running on a remote machine. I have root privileges. So far I haven't really installed anything besides the operating system. This was done in an amazon aws type of way.
I see people talking about getting gnome or a "remote desktop" type of thing working, but I'm not sure how to go about this. I connected and then typed in gnome-session but nothing happened. Maybe I don't have that thing installed yet? Can someone point me in the right direction?
Also, is it possible to just start an X11 session with a single app, like notepad or a file and folder browser?
Use X forwarding with SSH to forward the app that you wish to run locally; Replace gnome-terminal in the example below with the name of your remote app.
apt-get install xrdp
use rdp client on the Mac
run vncserver from the linux box, and then connect to it with a vnc client like Chicken of the VNC for Mac