[dns-operations] TLD zones with lame servers

[Mark Andrews]

> On 7 Jun 2019, at 8:04 pm, Anand Buddhdev <anandb at ripe.net> wrote:
> 
> On 07/06/2019 03:54, Mark Andrews wrote:
> 
> Hi Mark,
> 
> [snip]
> 
>> cm. cm.cctld.authdns.ripe.net: no address records found (NXDOMAIN)
> 
> Since you've mentioned a RIPE NCC name server, I'd like to point out
> that we have tried for years to contact the operators of the CM zone, to
> sort out this dire situation. We have tried various email addresses and
> phone numbers, and also tried to reach out to regional ICANN contacts.
> I'm disappointed to say that we did not get anywhere.

Yes, it is on .CM to update the delegation but at some point IANA also
has to listen to the operators of the delegated to servers to remove a
delegation that is no longer wanted.  RIPE can’t be more explicit that
the machine does not exist by returning NXDOMAIN for the name and REFUSED
for all queries to the glue addresses.  About the only other thing it
could do would be to return bogus records rather than REFUSED and I
don’t think RIPE wants to do that though I do think it would get .CM’s
attention.  In this case the other server delegated to don’t list
cm.cctld.authdns.ripe.net as a server.

Mark

> Regards,
> Anand Buddhdev
> RIPE NCC
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-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742              INTERNET: marka at isc.org