How do I ensure one active session per user?

[andrewtrobec]

Hello All,

My goal is to stop users from sharing credentials (local authentication) which is a potentially useless endeavour, but I see two possible courses of action:

1. ACTIVE: Set a limitation through a .conf (authentication.conf?) file that doesn't permit multiple sessions for a given local account
2. PASSIVE: Run a search to identify whether an account has more than 1 active session with successive witch hunt

Are either of these possible?

Thanks!

Andrew