Proxy Servers - CGIProxy, PHProxy & Apache

Proxy Server Software & Proxy Scripts

CGIProxy-- HTTP/FTP Proxy in a CGI Script
This CGI script acts as an HTTP or FTP proxy. Through it, you can retrieve any resource that is accessible from the server it runs on. This is useful when your own access is limited, but you can reach a server that in turn can reach others that you can't. In addition, the user is kept as anonymous as possible from any servers. Common uses include anonymous proxies, VPN-like functionality, custom uses. It's very simple to install, and very configurable.
PHProxy - Anonymizing PHP Web Proxy
PHProxy is a Web HTTP proxy programmed in PHP to bypass firewalls and other proxy restrictions through a Web interface very similar to the popular CGIProxy. School/country/company blocked your favorite Website? Look no further! The server that this script runs on simply acts as a medium that retrives resources for you. The only IP address shown will be the server's IP address. So basically, it is indirect browsing. The only catch being that the server has to have access to those otherwise inaccessible resources.

Throttle Proxy Server Load with CGIProxy on Apache
mod_throttle is a powerful tool for Apache administrators and webmasters, and especially for proxy administrators searching for a way to keep a handle on all of that traffic. This article will take you step-by-step through setting up mod_throttle on your cPanel server and limiting traffic to prevent any more ugly down time.
CGIProxy Ban Extensions Hack
A simple CGIProxy ban extensions hack. I figured out a hacky way to ban on extensions based on the TEXT_ONLY thing. Unfortunately text only strips images and everything else, which is unacceptable for most common uses.
PHProxy Statistics and Abuse Prevention with PHP and MySQL
This article contains a PHProxy hack that has been implemented which tracks usage with MySQL, outputs nice formatted stats, and employs IP limiting to drastically reduce bandwidth consumption and abuse.