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

Paul Vixie paul at redbarn.org
Thu Apr 2 20:41:12 UTC 2020

On Thursday, 2 April 2020 20:12:50 UTC Puneet Sood via dns-operations wrote:
> ,,,
> 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.
> ...

this is concerning, so, two questions:

would you change this parent-centrism or or when you implement QM?

when you receive NS RRs from the authority, perhaps as part of an NXD 
response, do you ignore them?

if you process a stub query asking for NS, do you return the set you received 
during iteration?


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