Remote logon via XDMCP to Solaris and Linux

[Thomas Chadwick]

One more thing on this subject...

If you absolutely cannot figure out what your IP address is at the far-end 
of the VPN, then you might want to consider running dxpc.  The original 
intent of dcpx was to compress the amount of data transferred between remote 
X-clients and a local X-server connected via a low-bandwidth connection.  
However, it has a feature which allows you to setup the connection if you 
only know the IP address of the machine your connecting to (and don't know 
the IP address of the machine you're connecting from, which is effectively 
the case here).

I found a pretty good treatment of dcpx here:

http://www.linuxjournal.com/article.php?sid=2374

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