用Putty通过代理服务器穿透防火墙

Putty V0.58 可以通过代理服务器连接外部网络（Internet或者内部其他局域网），穿透防火墙。
SSHProxy是一个简单而且有用的Socks4 Socks5代理服务器,可以通过SHTTP Proxy 实现二级代理
The SSH Proxy is full featured SOCKS Proxy written in Java.It supports both versions 4 and 5 of Socks protocol.Additional feature that I have implemented in SSH Proxy is the possibility to make TCP connections through an HTTP-SSL Tunnel.

SSH Proxy works in two modes:
Normal mode - works as normal SOCKS Proxy
TCP via SHTTP mode - Works as SOCKS Proxy but makes SOCKS TCP connections via HTTP-SSL Tunnel Proxy.
The TCP via SHTTP mode is very useful when user woks behind HTTP Proxy and hasn't any other acces to the Internet. In this case the user can run SSH Proxy on his/her machine, and configure it to use TCP connections via HTTP-SSL tunnels which are commonly supported by most proxies. This way he/she will be able to use other internet applications, eg. IRC, FTP, e-mail, telnet, HTTP (of course :-) but without caching and etc.

用Putty通过代理服务器穿透防火墙