Non-authoritative answer:

[Colin Sabine]

OK, I've specified zone 'A'(master) in my named.conf, along with its
in-addr.arpa zone. I've created the relevent files with correct(?) entries.
Now, when I run nslookup I get a correct reply - But, it is a
non-authoritative answer.

So my question is what is the definition of an authoritative answer?

What criteria should my server meet for it to be authoritative?

Regards
Colin.