Hi. I am trying to create script that would activate when other machines connect to certain ports on internet through this machine. This box is doing the masquarading.
I tried to use tcpdump, but it does not have any timeout options that I need. And besides I just need to see if connection is established. The packets might take a while to come in. I need almost immidiate answer. I don't need to see the packets just that there is currently a link established between a masquaraded machine and a site on internet with a specific port#. Sort of like what "netstat -an" does, but looking at non-local connections. Any ideas ?
