We are developing a proxy server in
java.
Each client will be given an account with username , password and his web history will be
stored in the account so that content filtering and caching can be provided .
we have the code for client to our proxy server and our proxy to main server communication .
But we don't know how to provide authentication .
Whenever a client want to access the internet , a dialog should appear to him asking for
username and password just as squid does.
How to invoke a authentication dialog box on the client side when the client wants to
connect to the internet.