[Pdns-users] SERVFAIL responses on malformed subdomain query

[Thib D]

I have put the 8bit-dns=yes option in the config and it is working as
expected in a bind-backend setup

Thanks !

Thibaud.

Le jeu. 14 oct. 2021 à 16:36, Peter van Dijk via Pdns-users <
pdns-users at mailman.powerdns.com> a écrit :

> On Thu, 2021-10-14 at 16:01 +0200, Remi Gacogne via Pdns-users wrote:
> > On 10/14/21 15:52, Thib D via Pdns-users wrote:
> > > It seems like pdns auth servers are answering SERVFAIL queries when
> the
> > > subdomain is malformed in the query. It is testable on powerdns.com
> > > <http://powerdns.com> domain - which I assume is hosted on a
> pdns-auth
> > > backend.
> > >
> > That behaviour can be configured via the 8bit-dns parameter [1], which
> > default to false. It used to be an issue for some PowerDNS backends but
> > my understanding is that it should be safe to turn it on nowadays.
> >
> > [1]: https://doc.powerdns.com/authoritative/settings.html#bit-dns
>
> I am not sure it is safe to turn on with the SQL backends today. Our
> test suite does not cover it, so we can't guarantee correct operation.
>
> Kind regards,
> --
> Peter van Dijk
> PowerDNS.COM BV - https://www.powerdns.com/
>
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