(re)adding local resolver.arpa zone

[Havard Eidnes]

> I think you need to set the zone to 'nodefault'. From Unbound conf
> documentation:
>
> # By default, for a number of zones a small default 'nothing here'
> # reply is built-in.  Query traffic is thus blocked.  If you
> # wish to serve such zone you can unblock them by uncommenting one
> # of the nodefault statements below.
> # You may also have to use domain-insecure: zone to make DNSSEC work,
> # unless you have your own trust anchors for this zone.
> ...
> # local-zone: "resolver.arpa." nodefault
> ...

Yes, thank you, that did it.

A bit more pedal-driven than I would have expected, but it'll do.

Regards,

- Håvard