I am using EAP-TLS for authentication so I have no use for a backend db to check username/password credentials. However, I would still like to prevent simultaneous logins with the same certificate. Is this possible without having an sql database? I have "Simultaneous-Users := 1" set in the "users" configuration file but it doesn't seem to do anything.
Clients are being checked against this line in "users" DEFAULT Simultaneous-Use :=1 - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html