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Date:      Sat, 12 Oct 2002 00:17:42 -0500
From:      "Maildrop" <maildrop@qwest.net>
To:        freebsd-security@freebsd.org
Subject:   monitor ALL connections to ALL ports
Message-ID:  <NGBBIILBAKIFGHHCHOHPGEDCFJAA.maildrop@qwest.net>

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I currently have a DSL line and a FreeBSD firewall/gateway (dual homed).  It
has one internal IP address and 5 external IP address (one "real" ip and 4
alaises on same external nic).

What I want to do is montior and record (to log) all incoming/outging
connection (just source ip/dest ip/port).  If someone connects to my web
server it should log what ip accessed it, the time, which ip (web server
runs on 2 external ip address) and the port.  Also if someone does a port
scan against the box I should be able to tell it is a port scan (since one
ip address would be opening up a bunch of ports).

Right now I don't care what data is being sent/received, just what
connections are being made (and the details about those connections).

Any suggestions?

Regards,
Jack


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