AnyTunnel

Tunneling Anywhere (Behind NAT)

Usage

You'll need a LeanCloud account (free). Its realtime messaging service is used during the UDP hole punching process.

npm -g install anytunnel

Server

anytunnel \
	-r [leancloud region] \
    -a [leancloud appId] \
    -s [serverId] \
    -L kcp://localhost:[port1]

Client

anytunnel \
	-c \
	-r [leancloud region] \
    -a [leancloud appId] \
    -s [serverId] \
    -F kcp://localhost:[port2] \
    -L socks://localhost:[port3]

The commands above will setup a socks5 proxy listening at port3 on the client, forwarding packets to the server.

The serverId, port1, port2 options are arbitrary. Also, you can specify any -F / -L options accepted by gost as long as there is

• a -L kcp option on the server
• a -F kcp option on the client

AnyTunnel forwards UDP packets according to these two options.

Credits

• gost (GO Simple Tunnel) provides proxy functions, especially KCP over UDP tunneling.

• LeanCloud provides realtime signaling service.

• stun for stun packets parsing, the result is then signaled to peers.

• exit-hook for on-exit cleanup (killing the gost child process)

• commander for command line options parsing