[Pdns-users] Generating PTR Records for IPv4 and IPv6 Addresses on the fly

[Chris Wopat]

We use the API to do this. Wouldn't that work regardless of which backend
is being used?

For IPv6, you could break your zone up at some nibble boundaries (/56) and
have zones. We're using a /32 broken in to /48 zones and it's fine for us.

We're using python and this module -
https://github.com/outini/python-powerdns

--Chris

On Fri, Jun 3, 2022 at 8:56 AM Ambauen Daniel (ID) via Pdns-users <
pdns-users at mailman.powerdns.com> wrote:

> Dear List
>
> There is a possibility to create PTR records dynamically with Lua Records
> (Reverse DNS functions createReverse and createReverse6).
>
> For IPv4 addresses the Lua records seem to me a suitable possibility.
> For example to cover a subnet /16 you need 255 Lua records.
>
> When IPv6 comes into play it gets more difficult.
> Just as an example, if I want to cover a /48 prefix I need a huge amount
> of Lua records.
> There must be a better solution to solve this problem.
>
> I ask myself if there is a way to achieve the same goal with the Lua2
> backend.
>
> The Lua2 backend generates a response for each PTR request, if the
> PostgreSQL backend does not provide a response
> the Lua2 PTR response is sent instead of the NXDOMAIN message.
> With such a solution all Lua records in the arpa domains are unnecessary.
>
> Is something like this possible with the Lua2 backend?
>
> We are using PowerDNS Authoritative Server 4.6.2
>
> Kind regards
> Daniel
>
> -------------------------------
> ETH Zürich
> Daniel Ambauen
> ID Infrastructure
> -------------------------------
>
>
>
>
>
>
> _______________________________________________
> Pdns-users mailing list
> Pdns-users at mailman.powerdns.com
> https://mailman.powerdns.com/mailman/listinfo/pdns-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.powerdns.com/pipermail/pdns-users/attachments/20220603/2b47630f/attachment.htm>