I thinked it's well known that Jazz2 works with wine!, my JJ2-Server was running a year (2009) with debian+fluxbox+wine (i think it was the wine-version 0.9.3).

The bad thing at wine is, createremotethread (a function from ntdll) do not work there, so you have to plusfie JJ2, directly loading the dll with plus.exe do not work!

If JJ2 is stopping working on linux you should copy your regedit options for JJ2 from a windows system, it always crashed in fullscreen mode on my server.

As a server its not the best in my oppinion, the most time it looked like my Server had big problems with uploading the level to clients, as client it should work (never played a lot as client)