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

Brian Candler b.candler at pobox.com
Fri Apr 3 08:21:58 UTC 2020

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.



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