LITA Regional Institute: Proxy Web Servers and AuthenticationProxy Web Servers and Authentication > Free Proxy Servers
"DeleGate is a multi-purpose application level gateway, or a proxy server which runs on multiple platforms. DeleGate mediates communication of various protocols, applying cache and conversion for mediated data, controlling access from clients and routing toward servers. It translates protocols between clients and servers, merging several servers into a single server view with aliasing and filtering."
http://wall.etl.go.jp/delegate/