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Date:      Mon, 26 Jul 1999 13:16:57 -0500 (CDT)
From:      Joe Greco <jgreco@ns.sol.net>
To:        freebsd-hackers@freebsd.org
Cc:        freebsd-ipfw@freebsd.org
Subject:   securelevel and ipfw zero
Message-ID:  <199907261816.NAA05470@aurora.sol.net>

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Hello,

So, I've a box that I have an ipfw ruleset on.  The firewall should not be
changeable during runtime, and the box runs at securelevel=3.

In order to prevent DoS disk-fill attacks, I also have specified
IPFW_VERBOSE_LIMIT.

Now, the problem is, in securelevel 3, you cannot zero a rule's counter,
so basically once you are up and running, you get to log IPFW_VERBOSE_LIMIT
events and then you lose logging (ideally I'd zero nonzero rules once every
N minutes).

Comments?

... Joe

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Joe Greco - Systems Administrator			      jgreco@ns.sol.net
Solaria Public Access UNIX - Milwaukee, WI			   414/342-4847


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