invalid requests for dns_registration.*

[Matus UHLAR - fantomas]

> In article <mailman.974.1269852204.21153.bind-users at lists.isc.org>,
>  Matus UHLAR - fantomas <uhlar at fantomas.sk> wrote:
> > on one of my nameservers I see many of these messages in log files:
> > 
> > Mar 29 07:59:07 gtssk1 named[5012]: security: error: client
> > 195.168.29.200#65293: view gtsi: check-names failure
> > dns_registration.in.nextra.sk/A/IN
> > 
> > I'm curious of the reason because they are going to sevrer authoritative for
> > nextra.sk, but not for in.nextra.sk, so I think there's a broken DNS
> > resolver/updater somewhere.

On 29.03.10 21:55, Barry Margolin wrote:
> If the client doesn't have NS records cached for in.nextra.sk, it will 
> ask the servers for nextra.sk, which should return a delegation.

yes, apparently something like that.

> > Has anyone an idea what kind of devices or cofnigurations can issue these
> > requests?

> Any properly functioning DNS resolver.  There's nothing wrong with the 
> requests.  What's wrong is that your subdomain has a hostname with an 
> underscore in its name.

There is no such subdomain and I do not have any record containing
underscores in my domains.

The issue is exactly that someone/something is requesting a hostname that
does not exist and is invalid. I don't know who or why.

Has anyone seen a case where the "dns_registration" prefix would be special?
Any kind of device/service/protocol that would prepend this to domain in
domain search list to get any informations?

-- 
Matus UHLAR - fantomas, uhlar at fantomas.sk ; http://www.fantomas.sk/
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