I am in the process of trying to build a Dirtsand server as you do.
Following the instructions I find the following
"To generate the RC4 keys, you can simply run the keygen command from within the dirtsand interactive console:"
What is the "dirtsand interactive console" and how do I get to it?
I daresay I may be able to figure out how to use keygen part but at this time this is in the cryptic secret jargon category.
Ideally I would like to access this form command line but if it is a Linux Desktop option then so be it.