Squid Web Proxy Cache

Squid Web Proxy Cache: "Squid is...

* a full-featured Web proxy cache
* designed to run on Unix systems
* free, open-source software
* the result of many contributions by unpaid (and paid) volunteers

Squid supports...

* proxying and caching of HTTP, FTP, and other URL's
* proxying for SSL
* cache hierarchies
* ICP, HTCP, CARP, Cache Digests
* transparent caching
* WCCP (Squid v2.3 and above)
* extensive access controls
* HTTP server acceleration
* SNMP
* caching of DNS lookups"