Thanks for you reply.
I made the dedicated server using this guide:
This guide explain how to make the server, so I compiled the modified source with the new file “PROJECTNAMEServer.Target.cs” and now I have a file called “PROJECTNAMEServer.exe”, but, where are the files to modify that?
I prefer to make this kind of connection:
Client -> Server -> DB -> Server -> Client