Dnssec delegation NS RRset

[@lbutlr via bind-users]

I am getting the following warning:

The following NS name(s) were found in the authoritative NS RRset, but not in the delegation NS RRset (i.e., in the com zone): (a DNS server)

The DNS server exists and is used by other domains, so This is something specific to this one domain and not to the DNS servers, so I think it must be something on the registrar.

Missing glue records?
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[Matthew Richardson]

You may find people can give better answers if you tell us the domain name.

The issue does not sound like glue, but there is not enough informmation to
go on.

Best wishes,
Matthew
------

Date: Sat, 27 Mar 2021 03:30:09 -0600
Subject: Dnssec delegation NS RRset
The following NS name(s) were found in the authoritative NS RRset, but not in the delegation NS RRset (i.e., in the com zone): (a DNS server)
The DNS server exists and is used by other domains, so This is something specific to this one domain and not to the DNS servers, so I think it must be something on the registrar.
Missing glue records?

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[Havard Eidnes via bind-users]

Post by @lbutlr via bind-users
The following NS name(s) were found in the authoritative NS
RRset, but not in the delegation NS RRset (i.e., in the com
zone): (a DNS server)

This sounds like there is a mismatch between the NS RRset for the
zone on the authoritative NSes for the zone and the delegation NS
RRset from the parent zone. For a proper setup, these two NS
RRsets needs to be identical, and it's the zone owner's duty to
ensure that is the case. Updating the NS RRset in the parent is
often done using other means than the DNS protocol itself.

Post by @lbutlr via bind-users
Missing glue records?

Maybe I'm splitting hairs here...

https://tools.ietf.org/html/rfc8499

says about "glue records":
A later definition is that glue "includes any record in a zone
file that is not properly part of that zone, including nameserver
records of delegated sub-zones (NS records), address records that
accompany those NS records (A, AAAA, etc), and any other stray
data that might appear." (Quoted from [RFC2181], Section 5.4.1)

So... According to that wider definition of "glue records", yes,
there may be missing NS records in the delegation NS RRset in the
delegating zone.

If you use the more narrow definition of "glue records", that it
only consists of address records for the names corresponding to
the NS records in delegations, I would say "probably not".

Regards,

- Håvard
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