Sunday, January 27, 2008

Bypass proxy servers

Bypass proxy servers: Proxy servers are servers which acts as an interface between a user and the site that the user is viewing. By using a bypass proxy server, one can also bypass the network filters which are installed in areas like schools, colleges etc. To bypass such filters, one can use bypass proxies and visit the destination site through those bypass filters. In order to make it easy for users to find bypass proxy servers, I'm listing the most popular bypass proxy sites here. You can choose anyone of the bypass proxy sites listed on the right and bypass your local network security. Using this, your network administrators will not only be unable to track your internet uses but also let you unblock many sites like myspace, facebook, orkut from such areas. SO, if you are in such a place where you need to bypass your network in order to visit your favorite sites, use our list of bypass proxy listed here.

Related links

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Friday, January 11, 2008

Bypass proxy servers

In computer networks, a proxy server is a server (a computer system or an application program) which services the requests of its clients by forwarding requests to other servers. A client connects to the proxy server, requesting some service, such as a file, connection, web page, or other resource, available from a different server. The proxy server provides the resource by connecting to the specified server and requesting the service on behalf of the client. A proxy server may optionally alter the client's request or the server's response, and sometimes it may serve the request without contacting the specified server. In this case, it would 'cache' the first request to the remote server, so it could save the information for later, and make everything as fast as possible.

A proxy server that passes all requests and replies unmodified is usually called a gateway or sometimes tunneling proxy.

A proxy server can be placed in the user's local computer or at specific key points between the user and the destination servers or the Internet.
Types and functions
1.1 Caching proxy server
1.2 Web proxy
1.3 Anonymizing proxy server
1.4 Hostile proxy
1.5 Intercepting proxy server
1.6 Transparent and non-transparent proxy server
1.7 Forced proxy
1.8 Open proxy server
1.9 Split proxy server
1.10 Reverse proxy server
1.11 Circumventor
1.12 At schools and offices
1.13 Managed 'clean-pipe' proxy servers


A proxy server can service requests without contacting the specified server, by retrieving content saved from a previous request, made by the same client or even other clients. This is called caching. Caching proxies keep local copies of frequently requested resources, allowing large organizations and Internet Service Providers to significantly reduce their upstream bandwidth usage and cost, while significantly increasing performance. There are well-defined rules for caching. Some poorly-implemented caching proxies have had downsides (e.g., an inability to use user authentication). Some problems are described in RFC 3143 (Known HTTP Proxy/Caching Problems).