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C# class for connecting via a SOCKS5 Proxy Server

, 26 Jan 2004
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C# class for connecting via a SOCKS5 Proxy Server


The download contains a C# source file that defines a SocksProxy class. This class can be used by the hosts, which are behind a firewall to connect to the outside world.


When a TCP-based client wishes to establish a connection to an object that is reachable only via a firewall and that firewall speaks SOCKS5 protocol, this class can used on the client side to reach the object via firewall. The SOCKS service is conventionally located on TCP port 1080.

This class provides only a single static method named ConnectToSocks5Proxy, which accepts required arguments and returns a socket connected to the destination endpoint. If something wrong happens, it throws a ConnectionException. This version only supports "connect" command. "Bind" and "UDP" is not supported in this version.

For details about SOCKS5 RFC visit:

Client usage

Socket client;
client = LMKR.SocksProxy.ConnectToSocks5Proxy(
string strGet = "GET //\r\n";


This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

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About the Author

Web Developer
Pakistan Pakistan
I started programming in 1996 with Lotus 123 (macro's). From that day programming became my life partner.
Currently I live in Rawalpindi, Pakistan.

Comments and Discussions

Question不能用。。 Pinmembersonggongpu26-Sep-13 23:59 
QuestionProxy Access with authentication Pinmemberparas d. patel1-May-13 21:09 
QuestionUDP Support Pinmemberseer_tenedos229-Nov-11 16:07 
Can anyone help with UDP support. I need to use a UDP services via a socks5 proxy and i can't find a socks5 client for my dotnet app anywhere that supports UDP.
GeneralIt does't work Pinmemberpopsickle12-Oct-09 16:14 
Generalbug in his proxyserver Pinmemberedvo13-Feb-06 9:53 
GeneralUDP Proxy Pinmemberkeshavcn9-Sep-05 22:13 
QuestionHow to make http proxy connection Pinmembersangram120-Jul-05 5:20 

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