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socks

Socks (or "SOCKS") is a protocol that a proxy server can use to accept requests from client users in a company's network so that it can forward them across the Internet. Socks uses sockets to represent and keep track of individual connections. The client side of Socks is built into certain Web browsers and the server side can be added to a proxy server.

A socks server handles requests from clients inside a company's firewall and either allows or rejects connection requests, based on the requested Internet destination or user identification. Once a connection and a subsequent "bind" request have been set up, the flow of information exchange follows the usual protocol (for example, the Web's Hypertext Transfer Protocol protocol).

This was last updated in April 2005

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There are two version of SOCKS,Version 4 and 5.

Socks 4 - support TCP proxy,can't working with UDP protocols,So,It doses support authentication and Name resolution(DNS lookups),the Socks4 Proxy can be works on web surfing with browser,NNTP newsgroup access,FTP and Internet Relay Chat application.

Socks 5 - is the most used and secure proxy protocols,Suport both TCP and UDP,with UDP you can get Name resolution(DNS lookups) and authentication.You can use the Socks5 proxy instead of Socks4 proxy,More over you can use the it's for ICQ,Skype and so on.

All of socks5 proxies are highly anonymous.It’s working as tunnel on tcp/ip connections.The proxy will fetch the traffic data from the tunnel.It securely connect between the client and the proxy server.The web server will distinguish the IP address of socks proxy as your IP so it cannot trace your real IP and nobody can track what you are actually activities.

and you can find the best socks proxies on,
http://www.proxylistplus.com/Protocols/socks5-proxy/
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