SOCKS5 is a protocol used for proxy servers which offers a number of benefits over its predecessor, SOCKS4. It is used to establish a network connection between two hosts, usually for the purpose of providing enhanced security and privacy.

SOCKS5 was developed by the Internet Engineering Task Force (IETF) as a next-generation Internet protocol for IP-based client-server networks. It provides a number of improvements over the earlier SOCKS4 protocol, most notably a more efficient authentication mechanism and an extended set of IP addresses that can be used for authentication.

The protocol provides authentication in three stages. First, the client and server establish a connection using an authentication method; these can include username/password, GSSAPI, or none at all. The second stage is the negotiation of the security method; this is used to establish a secure link between the two hosts. Finally, the authentication is completed in the third stage when the server assigns an IP address to the client.

Using SOCKS5 can provide a number of benefits. It allows for secure and private communication by providing a number of authentication options, and it can be used to bypass IP-based restrictions, such as those on certain web sites. Additionally, it can improve connection speeds, as traffic is routed through a secure and reliable server.

SOCKS5 is widely used in computer applications, including VPNs, FTP, web browsers, gaming, and email services. It is also used in secure enterprise networks, where it can provide enhanced security and privacy for corporate networks.

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