[plug] XDMCP and GDM

[Craig Ringer]

Tim White wrote:
> I believe that the best way to access another computer remotely and 
> graphically is through XDMCP.

If it's on a local network segment, then quite likely yes. Otherwise, 
the UDP-based XDMCP protocol, which is also entirely lacking security 
measures, may not be desirable.

> If I login and then run gdmchooser when I select a client it 
> exits without connecting.

Rather than running GDM on the client, consider having it simply run
	X -query $MY_XDMCP_SERVER
on boot.

> Also how does XDMCP work? I understand that it runs all the applications 
> on the server but displays them on the client using the clients 
> hardware.

Well, that's how remote X works, yes. All XDMCP does is discover 
servers, negotiate the initial session and help set up authentication 
cookies.

> So does this mean that it also uses the clients X config?

Correct, but not the configuration for their X apps.

> And 
> if so should that mean glx (OpenGL) apps should work if the hardware 
> supports it and the drivers are installed?

Maybe. Depends on if the app also relies on xshm or DRI; it might work.

--
Craig Ringer