[Pdns-users] What determines authoritative?

[jrd-pdns at jrd.org]

Yes, this is probably a dumb question, but I couldn't figure it out in
20 minutes of googling.

I have a pdns installation for my local network. V4.1.13.  Mysql
backend.

I noticed while debugging something else that it is returning
non-authoritative answers for a zone for which should be the
authority.

The zone has an SOA naming this host as the authority.  It has an NS
record saying it's the server for this zone.  It knows its hostname.
The A record for itself is correct.  There *should* be enough
information there for it to determine that it's authoritative.

FWIW, I *think* in times past, this used to work.  So maybe I've
inadvertently changed some config?  Dunno.

What are the necessary conditions for pdns to return authoritative
answers?

TIA . . .