[Pdns-users] reverse zone /27 subnet - migrating from bind

[Andy Smith]

On Fri, Jan 25, 2019 at 04:58:38AM +0000, Andy Smith wrote:
> I have not had any issues putting these zones into PowerDNS.

Having said that, I've never used zone2sql to do it, so it's
possible that tool does not work for reverse zones that aren't on an
octet boundary.

By way of example, I (in the ISP role) delegate 85.119.82.118/32 to
an end user by putting the equivalent of:

118-32  NS      ns1.abominable.org.uk.
118-32  NS      ns2.abominable.org.uk.
118     CNAME   118.118-32.82.119.85.in-addr.arpa.

into the zone 82.119.85.in-addr.arpa. So they have been delegated
the zone "118-32.82.119.85.in-addr.arpa". In their zone they
(apparently) have put the equivalent of:

118 PTR diablo.404.cx.

As you already saw, RFC2317 has a few different suggestions for how
to structure it, and there's also:

    https://dougbarton.us/DNS/2317.html

Cheers,
Andy