Hi All Sorry for stupid questions, but I've not understood how can make the follow scenario. I would want to configure mine squid like a trasparent proxy for users that comes from Internet that need to access to the OWA and like cache proxy for the lan users to navigate. Can I make it? Can I use the same squid or I need to execute two squid on the same macchine? Can I configure squid to listen on a second tcp port only for trasparent proxy function? My squid in running on a linux server that work in DMZ network. Andrea