Get the proxy username

Need a way to auto-authenticate an user into a private intranet

[kilik]

Let me explain
I'm building an intranet for my office. We are 40
many different kind of activities, and i want to make an intranet with specific things available to specific people.
For that i need to authenticate individually the users, but when they connect on the net, they already need to enter the username/password, and i want to avoid them to re enter the same login/pass to connect on the intranet.

The intranet is automatically configured to be the start page of all the computers.
So if i can get the login into a php get("userlogin") (or something like that) it'll make things easy :)

thanks for any help :D

[jatar_k]

Welcome to WebmasterWorld kilik,

any other info?
configuration or platforms involved
are they auto logged into the proxy using their machine/domain login
do they have to login to their machines, then the proxy?