[FreeNX-kNX] Call to bind failed for font TCP port 12000

[Alastair Johnson]

On Tuesday 30 June 2009, Neal Becker wrote:
> server:
> freenx-server-0.7.3-12.fc11.x86_64
> nx-3.2.0-32.fc11.x86_64
>
> client:
> nxclient-3.3.0-6.x86_64
>
> I can connect to 1 server, but simultaneous connect to 2 servers fails:
>
> NXPROXY - Version 3.3.0
>
> Copyright (C) 2001, 2007 NoMachine.
> See http://www.nomachine.com/ for more information.
>
> Info: Proxy running in client mode with pid '20092'.
> Session: Starting session at 'Tue Jun 30 10:26:17 2009'.
> Info: Connection with remote proxy completed.
> Warning: Unrecognized session type 'unix-gnome'. Assuming agent session.
> Error: Call to bind failed for font TCP port 12000. Error is 98 'Address
> already in use'.
> Session: Session terminated at 'Tue Jun 30 10:26:17 2009'.

IIRC you need to change the DISPLAY_BASE for one of the servers in node.conf. 
You should increase it by roughly the number of concurrent users, say from 
1000 to 1030.