Free Proxy Surf
Proxy is a software placed on a server that acts as an intermediator between user's browser and the server that contains the site that the user
wants to visit.
In this mode the user's Internet service provider server (those who provide access to Internet) and user's browser don't know that the user visits
this particular site. On the other hand, the viewed site doesn't have the information about user's IP address.
Each surfer and site in the net has an unique IP address:
When you connect to one site via proxy, the proxy software let see to the servers it connect the own identity, so the provider server and the server contains the site don't "see" each other, and don't exchange information between them, because the presence of intermediate server, so both of them "think" that are connected with the server that contain proxy software.
The software that simulate different data, for example function as proxy, are very numerous and which will you find depends of server operating system. Some of them, those older, have proxies wrote in Perl language (cgi), while other (newer) usually are compiled in PHP. There are even those written in ASP or Visual Basic, written for Windows, and not very appreciated by sophisticated users.