This is a handy little program for testing and troubleshooting.
Enter a port to listen on and it will show incoming connections to that port. This can be useful if you are trying to setup connectivity through a firewall or a router.
This could also be used as a secuity tool to make it appear you are running a service on a standard port, by having the tool respond, while the sevices is really running on a different port.
Very small single file is only 48k in size.
Get TCP Listen
Any chance I can get the source code for this handy little tool?
It’s .NET, just use reflector
A neat enhancement would be to have the tool show which IP the incoming connection came from.