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Date:      Mon, 28 Aug 2000 10:23:31 -0500
From:      "Daryl Chance" <dchance@valuedata.net>
To:        "FreeBSD IPFW" <ipfw@freebsd.org>
Subject:   ipfw add exec(blah)....
Message-ID:  <002d01c01103$ed055e60$0200000a@development1>

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Hi,

Has there ever been any type of discussion about adding
something to ipfw to execute a certain command if a fw
rule is triggered?  There could be a little use for this,
but the only couple I can really think of is:

a) if a deny rule is triggered you could run tcpdump for
a little, the rule could possibly pass on some variables
to the script (ip address:port denied) so you could pipe
tcpdump through grep for the ip addie/port, watching for
any other attemps.

b) you could setup a script to email you or play a sound
wav or some visual type of alert.

Thoughts?  I don't know much about the IPFW code, so I couldn't
code a patch for it :).

This a good idea? or could it allow for a possible security
problem?

Thanks,
--------------------------------------------------------
| Daryl Chance   | I have made this letter longer then |
| Valuedata, LLC | usual because I lacked the time to  |
| Memphis, TN    | make it shorter.   -- Blaise Pascal |
--------------------------------------------------------



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