Squid is a high performance Web proxy cache that can be arranged hierarchically for an improvement in response times and a reduction in bandwith usage. Squid runs on all popular Unix and Windows platforms.
License: GNU General Public License (GPL)
Changes:
Squid-3 is the next generation Squid HTTP proxy largely rewritten in C++. This release features, along with many other small things, an ICAP client that can be used to integrate virus scanners and other content inspection or modification tasks.
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