What is the SOCKS agent agreement?

This article mainly explains "what is the SOCKS agency agreement". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Now let the editor take you to learn "what is the SOCKS agency agreement"?

SOCKS stands for Socket Secure, a network protocol that facilitates communication with the server through the firewall by routing network traffic to the actual server on behalf of the client. SOCKS is designed to route any type of traffic generated by any protocol or program.

Because SOCKS sits at layer 5 between SSL (layer 7) and TCP/UDP (layer 4), it can handle a variety of request types, including HTTP, HTTPS, POP3, SMTP, and FTP. Therefore, SOCKS can be used for e-mail, web browsing, peer-to-peer sharing, file transfer, and so on.

There are only two versions of the SOCKS agent: SOCKS4 and SOCKS5. The main differences between SOCKS5 and SOCKS4 are:

SOCKS4 does not support authentication, while SOCKS5 supports multiple authentication methods

SOCKS4 does not support UDP proxies, while SOCKS5 does.

The SOCKS5 agent is more secure because it establishes a full TCP connection through authentication and uses secure Shell (SSH) encrypted tunneling to relay traffic.

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