[dns-operations] OpenDNS, Google, Nominet - New delegation update failure mode

Doug Barton dougb at dougbarton.email
Tue Nov 17 00:09:45 UTC 2020

Puneet, or anyone else at Google, are there publicly available 
references to this configuration choice? Web searches have all returned 
pages of generic discussion about parent/child config. I'm having a 
discussion with some colleagues and it would be helpful to reference 
something official.

If anyone from Nominet, or Knot, or other folks who referenced that 
their software is also parent-centric have references, that would be 
helpful as well.

Best regards,


On 2020-04-02 13:12, Puneet Sood wrote:
> Hi Doug,
> Google Public DNS resolution is working now.
> Google Public DNS is “parent-centric”—meaning that it only uses the
> name servers that are returned in the referral responses from the
> parent zone name servers, and does not make NS queries to this child
> zone. So updating the parent delegation to include both NS sets will
> help with Google Public DNS resolution.
> -Puneet

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