Hello , all
I have a LAN connected with a LINUX box to Internet that allow the LAN's users to connect only to 10-20 web servers on Internet ( by using iptable & netfilter ).
One of that web servers acts as both web server and free proxy server. And I want to block my users from accessing that free proxy server but allowing them to view that web.
My question is: how can I configure the squid or suidguard or other things on that LINUX box( this box is my LAN's gateway to Internet.)