GRPC TCP Tunnel

This piece of software is able to make a TCP tunnel over GRPC, using GRPC streaming (HTTP/2 channels).

Examples

Listen for GRPC tunnel clients on port 22223

go run . server :22223

Listen on port 18080 using ncat, tunneling through the client part of this software. The client will connect to the GRPC server @ ':22223', making it connect to example.com port 80.

ncat -kl 18080 -c 'go run . client :22223 example.com 80'

The -k flag will make ncat accept multiple connections, making the http requests more stable.

Now you can browse to http://localhost:18080 and you'll see 'example.com' reporting a 404 Not Found