Default Reverse Lookup name for unused IP in unbound

Måns Nilsson mansaxel at
Fri Sep 23 12:30:23 UTC 2022

Subject: Re: Default Reverse Lookup name for unused IP in unbound Date: Fri, Sep 23, 2022 at 12:03:27PM +0000 Quoting JAHANZAIB SYED via Unbound-users (unbound-users at
> Ok with wildcard tip, I proceed little further.
> I added following record in reverse zone
> *       IN    PTR
> Now If I do nslookup for any LAN IP (pool 192.168.1.x/24) who doesn't have any PTR record, it resolves to
> >
> Name:
> Address:
> How can I turn this to default as (e.g:

As I wrote a bit further down in my previous reply: 

>> If you want to have a more special RDATA section in the reply, an
>> active authoritative server is required, where ansvers are synthesized
>> on-the-fly.

I'm afraid this is a bit off-topic here, as it deals with serving data
and not with looking it up, and unbound is definitely aimed at looking

Several database- or script-driven backends have been developed for
various authoritative name servers, and while I've never tried myself,
I'm certain you'll find one that does what you want.

Måns Nilsson     primary/secondary/besserwisser/machina
MN-1334-RIPE           SA0XLR            +46 705 989668
I just had a NOSE JOB!!
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