As a side note to the Netcat posts (that are ongoing) I have a small addition, how to make a port scanner in Windows when you do not have one (or why deleting tools in windows rather than reporting them is a waste of time).
Here [increment] is the number of ports we go up at a time (this is usually going to be 1).
And a little interaction in typing "bye" in this case gets it running again. In this case the output (below) shows a loging we could try to exploit as a part of the test process.
Connection closed by remote host.
TCP Port Number 119:
TCP Port Number 120:
> ftp: connect :Unknown error number