A little experiment to write a Go application that can relay incoming TCP connections to a dynamically requested endpoint.

Example

In terminal 1:

nc -k -l 8091

In terminal 2:

go run main.go --in 8090

In terminal 3:

nc 8090

Enter the following command into terminal 3:

CONNECT :8091

That command line and any other lines you type will get relayed and displayed in terminal 1. Press Control-D to stop the connection.