[Pdns-users] PowerDNS API and RFC in relation to CNAMEs

Peter Thomassen peter at desec.io
Wed Jun 14 07:50:20 UTC 2017

Hi Diego,

On 05/08/2017 11:59 AM, Diego Bellini wrote:
> I have created a CNAME “ciao8.rainbow.com” using API
> After that I tried to create an A record with the same name
> “ciao8.rainbow.com” and the API allowed me to do so
> Is this a wanted behaviour?
> By RFC shouldn’t this be not allowed because
> “/"A CNAME record is not allowed to coexist with any other data."”/

In DNS responses, pdns returns just the CNAME record, hiding the other
records, according to my tests.

Caveat: NSEC3 (and probably also NSEC) records do reveal the presence of
the other records in the database. I think this is a bug -- I'm going to
open an issue on github.


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