nanog mailing list archives

Re: huh


From: Leo Bicknell <bicknell () ufp org>
Date: Tue, 15 Jan 2002 17:52:29 -0500


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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