On Tue, 2 Feb 2010 11:25:21 +0800, yjyj <yangjing001001@xxxxxxxxx> wrote: > Hi, > > I want to use the squid as a transparent bridge proxy, which is put > behind a firewall and in front of a web server. The web server works > in a local net with a different port from that clients visits, so the > firewall need to do nat and port mapping. What you are trying to do is called reverse-proxy. http://wiki.squid-cache.org/ConfigExamples/Reverse/BasicAccelerator Amos