[Pdns-users] IPv4 shared address space ( Reverse Zone

Giovanni Vecchi g.vecchi at certego.net
Fri Apr 3 09:05:56 UTC 2020

Hi Brian,

thanks for your reply.
At the moment I created every /16 reverse zone on my auth server and added
an entry for each of them on my recursor.
My doubt was only to avoid to miss a "smart way" of doing things.


On Fri, 3 Apr 2020 at 10:22, Brian Candler <b.candler at pobox.com> wrote:

> On 03/04/2020 08:36, Giovanni Vecchi via Pdns-users wrote:
> is there a way to create a single reverse zone for in Auth
> Server?
> Reverse delegation is done on octet boundaries, so you'll need to create
> 64.100.in-addr.arpa to 127.100.in-addr.arpa inclusive.
> If you want to cheat, you could create 100.in-addr.arpa, or even just
> in-addr.arpa, and rely on the fact that you'll never receive queries for
> any reverse outside the ranges of interest.
> Of course, is a private range which isn't delegated, so
> your recursors will still need to be configured to forward
> {64..127}.100.in-addr.arpa to your authoritative servers.
> HTH,
> Brian.


Giovanni Vecchi
Infrastructure Lead Engineer, Certego
<http://twitter.com/Certego_IRT>  <http://github.com/certego>
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