一款轻量级、高性能、功能强大的内网穿透代理服务器。支持tcp、udp、socks5、http等几乎所有流量转发，可用来访问内网网站、本地支付接口调试、ssh访问、远程桌面，内网dns解析、内网socks5代理等等……，并带有功能强大的web管理端。a lightweight, high-performance, powerful intranet penetration proxy server, with a powerful web management terminal.
[root@centos7 ~]# ./npc -server=139.9.45.20:8024 -vkey=hnwrcfmd8abcedre -type=tcp
2022/06/16 14:16:25.054 [I] [npc.go:231] the version of client is 0.26.10, the core version of client is 0.26.0
2022/06/16 14:16:25.144 [I] [client.go:72] Successful connection with server 139.9.45.20:8024
2022/06/16 14:20:42 mux: read session unpack from connection err read tcp 10.82.155.212:36494->139.9.45.20:8024: read: connection reset by peer
2022/06/16 14:20:42 close mux
2022/06/16 14:20:42.899 [E] [client.go:177] get connection info from server error EOF
2022/06/16 14:20:42.899 [W] [client.go:165] accpet error,the conn has closed
2022/06/16 14:20:42.899 [E] [client.go:92] Accept server data error read tcp 10.82.155.212:36492->139.9.45.20:8024: use of closed network connection, end this service
2022/06/16 14:20:42.899 [I] [npc.go:236] Client closed! It will be reconnected in five seconds
2022/06/16 14:20:47.999 [I] [client.go:72] Successful connection with server 139.9.45.20:8024
[root@centos7 ~]# ./npc -server=139.9.45.20:8024 -vkey=hnwrcfmd8abcedre -type=tcp 2022/06/16 14:16:25.054 [I] [npc.go:231] the version of client is 0.26.10, the core version of client is 0.26.0 2022/06/16 14:16:25.144 [I] [client.go:72] Successful connection with server 139.9.45.20:8024 2022/06/16 14:20:42 mux: read session unpack from connection err read tcp 10.82.155.212:36494->139.9.45.20:8024: read: connection reset by peer 2022/06/16 14:20:42 close mux 2022/06/16 14:20:42.899 [E] [client.go:177] get connection info from server error EOF 2022/06/16 14:20:42.899 [W] [client.go:165] accpet error,the conn has closed 2022/06/16 14:20:42.899 [E] [client.go:92] Accept server data error read tcp 10.82.155.212:36492->139.9.45.20:8024: use of closed network connection, end this service 2022/06/16 14:20:42.899 [I] [npc.go:236] Client closed! It will be reconnected in five seconds 2022/06/16 14:20:47.999 [I] [client.go:72] Successful connection with server 139.9.45.20:8024