On Saturday 12 January 2002 21:11, [EMAIL PROTECTED] wrote: > 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 ? Have you tried iptables using log as a target or even limit and log or ulog if you feel ambitious.
ipchains also has logging. Earl F Hampton
