Okay, a friend of mine wants me to install M.U.G.E.N onto a linux based server running apache. I am reading that you can install it on your own computer, but he insists that it can be uploaded onto a server and played online. I was wondering if this was possible and if so, how would I go about installing the program. Any assistance would be appreciated.

MUGEN doesn't have any online capabilities.

Mugen online would actually make 0% sense, considering that you would have to have the exact stages, characters, screenpacks, and configurations to play with someone online.