From: Tuc at T-B-O-H
Date: August 30 2005 8:37pm
Subject: Connections with bad DNS cause lockups
List-Archive: http://lists.mysql.com/mysql/188481
Message-Id: <200508302037.j7UKbb0D028417@himinbjorg.tucs-beachin-obx-house.com>
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Hi,

	We seem to be running into a problem with our 
installation that we don't understand.

	We are running "mysql-server-4.0.25" from
the ports collection on a FreeBSD 5.3-RELEASE-p10
machine. Its tcpwrapper'd to only allow from our
/24, and a single machine outside the /24.

	At times, all of a sudden the server seems
to "freeze". It appears that we've narrowed it down
to an issue with people attacking the server that
come from a site that has a bad reverse DNS setup.

	Has anyone else seen this, or knows how
to stop it?

		Thanks, Tuc