[dns-operations] All NSs for a TLD being in the TLD itself

[Jonathan Stewart]

The glue records for all TLD NSes are in the root zone.

What makes one label fragile, and another label robust?


On Thu, Oct 24, 2013 at 10:19 AM, Chris Thompson <cet1 at cam.ac.uk> wrote:

> On Oct 24 2013, Paul Hoffman wrote:
>
>  The new records for one of the shiny new gTLDs are:
>>
>> xn--ngbc5azd.           172800  IN      NS      a.nic.xn--ngbc5azd.
>> xn--ngbc5azd.           172800  IN      NS      b.nic.xn--ngbc5azd.
>> xn--ngbc5azd.           172800  IN      NS      c.nic.xn--ngbc5azd.
>> xn--ngbc5azd.           172800  IN      NS      d.nic.xn--ngbc5azd.
>> a.nic.xn--ngbc5azd.     172800  IN      A       37.209.192.3
>> a.nic.xn--ngbc5azd.     172800  IN      AAAA    2001:dcd:1:0:0:0:0:3
>> b.nic.xn--ngbc5azd.     172800  IN      A       37.209.194.3
>> b.nic.xn--ngbc5azd.     172800  IN      AAAA    2001:dcd:2:0:0:0:0:3
>> c.nic.xn--ngbc5azd.     172800  IN      A       37.209.196.3
>> c.nic.xn--ngbc5azd.     172800  IN      AAAA    2001:dcd:3:0:0:0:0:3
>> d.nic.xn--ngbc5azd.     172800  IN      A       37.209.198.3
>> d.nic.xn--ngbc5azd.     172800  IN      AAAA    2001:dcd:4:0:0:0:0:3
>>
>> This works, of course, but it feels a bit fragile for me. Is there a
>> history
>> of this being unsafe? Of being more safe than NSs whose names are in
>> other TLDs?
>>
>
> Whatever the safety aspects (there are probably arguments both ways) it
> certainly isn't uncommon. Going by the delegation NS records, 57 out of
> 323 TLDs have all NS records inside themselves. These include 51 ISO3166
> ccTLDs, 5 ASCII gTLDs (biz, mil, net, tel, travel) and [now!] just one
> IDN gTLD (the above).
>
> --
> Chris Thompson               University of Cambridge Computing Service,
> Email: cet1 at ucs.cam.ac.uk    Roger Needham Building, 7 JJ Thomson Avenue,
> Phone: +44 1223 334715       Cambridge CB3 0RB, United Kingdom.
>
> ______________________________**_________________
> dns-operations mailing list
> dns-operations at lists.dns-oarc.**net <dns-operations at lists.dns-oarc.net>
> https://lists.dns-oarc.net/**mailman/listinfo/dns-**operations<https://lists.dns-oarc.net/mailman/listinfo/dns-operations>
> dns-jobs mailing list
> https://lists.dns-oarc.net/**mailman/listinfo/dns-jobs<https://lists.dns-oarc.net/mailman/listinfo/dns-jobs>
>



-- 
     Jonathan
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.dns-oarc.net/pipermail/dns-operations/attachments/20131024/9b9fb6a0/attachment.html>