Screaming Penguin - Source Does Matter

For an internet proxy, http, ftp + , check SQUID.SQUID works very nicely on Linux. FAST. It is very configurable and very capable. More than the average household needs (which is how I use it, I used to use Apache with the proxy mod, SQUID is quite a bit faster) but fully capable of handling the enterprise, as it was designed. SQUID can do transparent proxy, socks, SSL, and all the other proxy stuff, SQUID rocks.