Mapping local ports to remote hosts, enabling remote services to be like local services.

映射本地端口到远程主机，让远程服务像本地服务一样

run proxy as one service

use node control proxy

后台运行proxy

使用proxyclient　控制prxoy useage: proxyclient tcp 3306 172.24.8.80 3306 A

arg1 协议

arg2 hostport

arg3 destiantionhost

arg4 destinationport

arg5 A is add and D is delete