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Describe a SOCKS5 proxy

When you use UDP, your request is sent straight to the server without passing via a proxy. When you don't want to wait too long for a server response, UDP is the most effective transport protocol. Whether or not SOCKS4 and SOCKS5 support UDP (User Datagram Protocol) is the primary distinction between them. Rather, routing is its main focus. However, users can benefit from both the security of encryption and the advantages of rerouting when combined with encrypted connections like HTTPS or secure application protocols.

Knowing what this technology does not do automatically is also beneficial. It doesn't encrypt traffic by itself. In professional settings, where various tools handle various aspects of security, this layered approach is typical. You might initially believe that utilizing outdated technology like UDP could lead to security problems. By default, the SOCKS4 protocol connects via TCP and UDP on port 1080. A SOCKS4 proxy has numerous drawbacks despite being typically simpler to set up and maintain than a SOCKS5 proxy.

A SOCKS4 proxy lacks strong security options because it does not offer encryption or authentication. Non-contiguous IP subnets, user identification, and Related Site username and password authentication are all not supported. This is not really a problem, though, if your SOCKS4 proxy is set up and secured correctly. You can use both UDP and TCP protocol, but SOCKS5 uses TCP protocol by default. You can keep your identity safe when using a SOCKS5 proxy by using these security techniques.

What makes SOCKS5 proxies superior to SOCKS4 proxies? Because the SOCKS5 protocol offers an additional layer of security that SOCKS4 proxies are unable to provide, a SOCKS5 proxy is superior to a SOCKS4 proxy. SOCKS5 protocol does not have this limitation because it uses TCP communication over port 1080 by default. You have three options for authentication with SOCKS5 proxies: None, GSSAPI, or User Name Password. For instance, a remote computer (or even a proxy server on the same LAN) can authenticate a local client using username and password authentication thanks to a User ID-based authentication method.

Setting up a client's destination IP address is another helpful feature of the SOCKS5 protocol, even if the remote proxy server is able to resolve the domain name. In contrast to its predecessor, SOCKS5 provides UDP services and uses TCP. However, there are also proxies that can provide you again internet access in the case you are blocked to certain server or website due to some reasons. SOCKS5 supports user authentication for security reasons. Therefore, before utilizing a SOCKS5 proxy, keep this in mind.

Note that the latter requires the application to support it. The ability to support UDP datagram types is the primary distinction between this protocol and its predecessor.