[users@httpd] only one ip per user (has many connections) can access resource at the same time ?

[tvlgiao <tvlgiao@xxxxxxxxx>]

Hello all,

How can I configure Apache to use mod_auth_mysql  to solve the following authentication theme:

In brief: if A logs in and is downloading  (connection established, IP
is saved when he logs  in), no other user can use A's account to 
authenticate (because anyone else has different  IP.)

If A logs in and is not downloading anything (no  connection, session
and A's IP is saved).  B can use A's account  to log in (establish a
new Connection, B's  session overrides A's as A hasn't start any
connection).  Hence, Precisely at the time  when B logs in, A is booted
as B's session already overrides A's.

thanks.
tvlgiao.