how to stop multiple login for each user in a session

[Guest]

[fazz]

hello sir,

         i am facing one problem after installing endian firewall. for eg am having 2 users, user 1 and user 2. suppose if user 1 is logging in with using his authentications like username and password , at the same time user 2 is also able to logging in with the authentication of user1 username and password so can you please help me to disable the multi login of each user in a session.