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在介绍SockCap2.1以前,首先来说明什么是Socks。从网络上查得的资料上说“Socks是个电路级网关,是DavidKoblas在1990年开发的。此后,就一直作为Internet RFC中的开放标准。Socks在协议栈的TCP层上运行。与Winsock不同的是,Socks不要求应用程序遵循特定的操作系统平台,比如象Winsock那样遵循Windows。Socks代理与应用层代理、HTTP层代理不同,Socks代理只是简单地传递数据包,而不必关心是何种应用协议(比如FTP、HTTP和NNTP请求)。所以Socks代理服务器比应用层代理服务器要快得多。”至于我们常说的Socks4和Socks5代理服务器的区别呢,其中Socks4代理只支持TCP协议,Socks5代理支持TCP和UDP协议,还支持各种身份验证机制,服务
Before introducing SockCap2.1, first of all to explain what is Socks. “Socks, a circuit-level gateway, was developed by David Koblas in 1990 and has since been the open standard in the Internet RFC. Socks are running at the TCP layer of the protocol stack. Unlike Winsock, Yes, Socks does not require applications to follow a specific operating system platform, such as Winsock follows Windows.Socks proxy and application layer proxy, HTTP layer proxy, Socks proxy simply passes the packet, without having to care about what kind of application protocol (Such as FTP, HTTP, and NNTP requests), so Socks proxy servers are much faster than application-level proxy servers. ”As for the differences between Socks4 and Socks5 proxies, Socks4 proxies support TCP only, Socks5 proxy support TCP and UDP protocols, but also supports a variety of authentication mechanisms, services