I am trying to setup a server/app that can log when a certain port has been
accessed on an inbound interface on my firewall.  I don't need the whole
contents of the packet, just the port number accessed (I have certain ports
to filter and define, i.e. ssh, http, https), the time and the date.  I also
want to have this dumped to a text file, with a preset size limit that will
automatically save to a new file once the threshold has been reached.  I
already have a port mirror setup on my core switch to dump all the traffic
there so I can see all of it, I just am having a log of trouble filtering
and logging exactly what I need with an app.  I have tried writing my own
custom snort rules, and dumping it to a file, but I can't seem to get that
right.  I also have written capture filters for wireshark; those pick up
only the packets I want, but, they log the whole packet, not just the
information I am looking for.  Does anyone on the list have any experience
with this type of thing?


Thanks in advance
-- 
Chris Niesen
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