Apache isn't just the planet's most popular Web server - it'salso one heck of a proxy server. This article explores the process ofinstalling and configuring Apache to act as a proxy server for yournetwork, demonstrating how it can be used to cache frequently-accessedWeb sites, log Internet access and block offensive domains, in additionto serving up Web content. Talk about getting two servers for the priceof one!
You can also have Apache work as a reverse proxy, allowing you to create "shortcut" URLs which appear to be local to the proxy server, yet actually point to external Web resources. Most of this is accomplished via the ProxyPass directive, which requires you to specify both the local path and the remote URL.
Here's an example:
ProxyPass /melonfire/ http://www.melonfire.com/
In this case, any request for the URL
http://proxy/melonfire/
will be automatically forwarded (via the proxy, naturally) to
Site Administration 
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