[dns-operations] I missed the announcement: .ARPA has beendeleted

[Florian Weimer]

* Stephane Bortzmeyer:

> On Tue, Feb 16, 2010 at 10:17:51PM +0100,
>  Florian Weimer <fw at deneb.enyo.de> wrote 
>  a message of 17 lines which said:
>
>> The roots receive the full QNAME.  If the QNAME contains multiple
>> lables, a Name Error response could still happen if the TLD existed,
>> so TLD non-existence cannot be inferred in many cases.
>
> You did not read Crist Clark's message. He is certainly aware of
> that. He suggests to use the _SOA_ record in the _AUTHORITY_ section
> to find out if the TLD exists or not (and it seems to work).

The SOA record does not contain the longest existing suffix.  I think
you really need to know that the root is delegation-centric, or that
all delegations have a single label, combined with the SOA trick to
deal with the arpa. special cases.