[45081] in North American Network Operators' Group
Re: huh
daemon@ATHENA.MIT.EDU (Leo Bicknell)
Tue Jan 15 17:53:04 2002
Date: Tue, 15 Jan 2002 17:52:29 -0500
From: Leo Bicknell <bicknell@ufp.org>
To: nanog@merit.edu
Message-ID: <20020115225229.GA50890@ussenterprise.ufp.org>
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In a message written on Tue, Jan 15, 2002 at 03:49:24PM -0600, Tim Devries wrote:
> Ok, well this is good to know. Although it still doesn't explain why my
> firewall is reporting DNS UDP/TCP probes from windowupdate.com on a regular
> basis.
Microsoft has in the past used load balancing technology that sent
DNS queries back to your machine/nameserver in an attempt to provide
you with a better performing (one can only assume lower latency)
server.
I suspect you may get "probed" approximately as often as you (or your
users) contact windows update.
--
Leo Bicknell - bicknell@ufp.org - CCIE 3440
PGP keys at http://www.ufp.org/~bicknell/
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