[Pdns-users] BIND-mode vs. Hybrid BIND-mode

frank+pdns at tembo.be frank+pdns at tembo.be
Fri Dec 3 09:45:07 UTC 2021

Hi Michael,

In BIND mode, a special-purpose sqlite3 database is used to store all dnssec related data. That sqlite3 database folllows a specific schema, and is not used as a "regular" backend. You'd only one backend (the BIND backend).
In Hybrid-BIND mode, you'd need at least a "regular" database backend, in addition to the BIND backend. That database backend can / will be used as a regular database backend, following that schema etc.

If you will only have BIND-style backends, the regular dnssec BIND mode is what you're probably looking for. If you have domains in both BIND and a MySQL database for instance, you can reuse that MySQL backend to store the DNSSEC data for domains in the BIND mode.

Hope this clarifies :)

Kind Regards,


Frank Louwers
PowerDNS Certified Consultant @ Kiwazo.be

> On 2 Dec 2021, at 23:08, Fox, Michael E. via Pdns-users <pdns-users at mailman.powerdns.com <mailto:pdns-users at mailman.powerdns.com>> wrote:
> Howdy,
> I’d like to use BIND zone files and DNSSEC.  
> I’m reading:  https://doc.powerdns.com/authoritative/dnssec/modes-of-operation.html#bind-mode-operation <https://doc.powerdns.com/authoritative/dnssec/modes-of-operation.html#bind-mode-operation>
> I don’t understand the difference between BIND-mode and Hybrid BIND-mode.
> BIND-mode says the zone records are stored in BIND files and an sqlite3 database is required for the keys and other DNSSEC related data.
> Hybrid BIND-mode says the zone records and keying material are stored in different backends.  Isn’t that the same thing?
> If there’s a distinction here, I don’t know what it is.
> Can someone explain?
> Thanks much!
> Michael E Fox
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