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General Information -
SOCKS (SOCK-et-S) is a proxy server protocol controlled by IETF.
There are two versions used today, Version 4.x and 5.x. Version 4
Version 5 has the added "user authentication" functionality as well as UDP protocol support. It is described in RFC 1928, RFC 1961.
There is also a version 6 in the works.
The SOCKS protocol has 2 parts. A SOCKS service runs on a Server computer within the proxy server. A client browser or other service capable or using socks is configured to use the SOCKS service running on the server. Browsers like Netscape, Explorer can use the HTTP, HTTPS, FTP, Gopher and other functions through the server to communicate as if they were directly connected without a server in between.
A typical connection is made to the TCP port 1080. Port 1081 can also be used if a web server is using port 1080. The setting configured on the client SOCKS service must match to the one configured on the proxy server's SOCKS service.
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