Topic: how to prevent user to multiple login using single account?

dear all..
iam using chillispot 1.0 and freeradius 1.1.7 running on ubuntu 8.04, so long so far still running properly but problem is the user could do multiple login with single account in same time??for example i have one user lets called by usertest1 and password test1 login from computer1 using that username and password and another user login from computer2 using that username and password again, but its logged in..how to prevent this,??this urgent for me,..any help or clue please??
so much appreciate for your reply..
regard Nizar

Re: how to prevent user to multiple login using single account?

it doesn't solve the problem friend..it just limiting user access by time..it cannot preventing user to do multiple login with single account.
any idea??

Re: how to prevent user to multiple login using single account?

okay, lets have a try...thank you..