[Pdns-users] Multips subnets in one Reverse Zone

[rob777]

Hi Frank

We use Powerdns-Admin GUI and PDNS with Sqlite3 Backend - PTR Records do
not change that frequently.

So that might not be an issue.

Thank you

Am Fr., 21. Feb. 2025 um 11:58 Uhr schrieb <frank at kiwazo.be>:

> Hi Rob,
>
> Yes, should be possible, PowerDNS won't complain about 2000-3000 or more
> records in the zone.
>
> If you should or not depends on how often and how you'll change them.
>
> Some web UIs might get slow if there are 3000 records in a zone, so try
> that out.
>
> Frank
>
>
> On 21 Feb 2025, at 11:52, rob777 via Pdns-users <
> pdns-users at mailman.powerdns.com> wrote:
>
> Hi
>
> I have a theoretical question which i'm unsure about after AI und Forum
> research.
>
> - i have 300-400 IP Subnets (mostly /24 Subnets in 10.0.0/8 CIDR)
> - The devices in these 300-400 Subnets have A records in a internal
> Powerdns Zone internal.mydomain.com
> - There are not that much devices in these Subnetzs (total between
> 2000-3000 Devices/A-Record)
> - Until now we didnt have PTR Records in Reverse Zones for these internal
> records
> - We are thinking about configuring PTR Records for these internal devices
> in 300-400 Subnets
> - But if possible we would not like to have 300-400 Reverse Zones but
> instead having one single Reverse Zone 10.in-addr.arpa for all the devices
> in the subnets
>
> So then having one PTR Zone 10.in-addr.arpa with entries like
>
> 5.20.0.10.in-addr.arpa. IN PTR test.internal.mydomain.com.
> 4.0.2.10.in-addr.arpa. IN PTR ab.internal.mydomain.com.
> 11.25.0.10.in-addr.arpa. IN PTR cc.internal.mydomain.com.
> etc.
>
> So about 2000-3000 such PTR Records in one PTR Zone..
>
> Question:
> - Is it possible with Powerdns
> - And if yes: would you do it with regards to "Best practice" (probably
> not...)
>
>
> P.s i dont use any delegations on these internal Powerdns Servers
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