Steve Blackwell zephod at
Thu Aug 19 21:51:14 UTC 2010

On Thu, 19 Aug 2010 20:29:28 +0000 (UTC)
JB <jb.1234abcd at> wrote:

> Steve Blackwell <zephod <at>> writes:
> > 
> > I want to be able to log in to another computer from this computer
> > using XDMCP. Assuming that I have configured the other computer
> > correctly, a big assumption to be sure, what do I have to do to GDM
> > to show a menu or some other way of displaying the available XDMCP
> > computers on my login screen?
> > 
> > I get plenty of google hits on GDM & XDMCP but they all appear to be
> > about how to configure GDM to allow a remote computer to log in to
> > my local computer and not the other way around.
> > 
> > Is XDMCP even the right way to go? Should I be using VNC? I know
> > XDMCP is inherently insecure but this is on a local private network.
> > 
> > Thanks,
> > Steve
> > 
> Hi,
> is it about XDMCP Chooser ?
> Gnome Display Manager Reference Manual
> 3. Configuration
> 3.2.6. XDCMP Chooser Options 

I added AllowAdd=true and Broadcast=true to the custom.conf file and
DisallowTCP=false to the security section. I also open ports 177,
6000-6005 and 7100 in the host's firewall (not the router's) and
restarted gdm but there was no change. 

If AllowAdd=true was being honored, there would have to be some way of
adding a host but there isn't. 

I also note the the gdm reference manual has not been updated since


Changing lives one card at a time
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