[Serusers] how can i avoid multiple logins?

[Ryan Pagquil]

Hi,
       How can I avoid multiple logins using the same username? I want 
to secure the users so that only the authentic user can only log on? Is 
there any modules or commands to make this? For example user1 is logged 
I don't want other people to log also using user1 since user1 is 
currently logged on.

Thanks in advance,

-- 
Ryan Pagquil
Infodyne Inc. - PhilOnline.com
3603 Antel Global Corporate Center
Doña Julia Vargas Ave.
Ortigas Center Pasig City
Tel: 687-0715
Web: www.philonline.com