On Fri, 5 Sep 2003, Peter van den Heuvel wrote:
> UDP port 53 gets queried on several of the firewalls that I maintain
> (and that do not provide any domain name services) from netblocks that
> are owned by microsoft and realmedia (mostly). None of the machines
> behind these firewalls are allowed any external DNS directly. The
> queries are rather massive (thousands per week).
>
> Searches on google did not turn up anything and I don't remember seeing
> anything on the lists either (though I migh have prematurely deleted
> something relevant because of the noise ;^)
Search for BigIP, check the Incidents mailing list archives. These are
(probably) global load-balancer devices, designed to help the site pick
which server(s) to handle your queries.
BB
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