I've a server with a common login (with "common" I mean several users use the same login). What I want to forbid is a "second" login from the same IP address.
I'm not talking about wrong logins attempts or anything related to that.
Jane, IP: 126.96.36.199 -> Logins ok to my server.
Jane's brother, IP: 188.8.131.52 -> tries to login in server, but he can't.
Is this possible?