XDMCP Limited connections

Les Mikesell lesmikesell at gmail.com
Fri May 9 18:52:14 UTC 2008

chris wrote:
> I've installed 8.04 server with ubuntu-desktop on it.   I modified
> /etc/gdm/gdm.conf to allow xdmcp connections to this box.  This is
> going to be a VM out at remote sites to do Wireshark captures, etc.
> So wanted options for my techs to either do CLI or GUI.
> I've pulled all my hair out with VNC and figured I'd go the XDMCP way.
>   I have it enabled and used XMing (on source forge) to connect.
> works good.  when another user connects, they get the standard ubuntu
> tan background and nothing else.
> only the user that originally connected can connect back.... everyone
> else gets squat.
> I've tried also the NXServer (from nomachine.com) but ran into issues.
>  I know that the free one only allows 2 connections but what I'm
> running into is that it seems to only allow those 2 connections to the
> first 2 people that log on the box.   I have the knob
> EnableAutokillSessions = 1 to clear out stale connections to allow
> someone else in but that doesn't appear to be the case.
> If anyone can help me out with either solution I would be most appreciative.

Why not run the freenx server with NX clients?
Note the advice on using the NoMachine key for the install. If you have 
custom keys you must distribute the client key to everyone who needs to 

   Les Mikesell
    lesmikesell at gmail.com

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