In message <87bmz3p4lt....@mid.deneb.enyo.de>, Florian Weimer writes:
> * Robert Edmonds:
>
> > I think there was already a thread on this topic recently on this list
> > ("Order of CNAME and A in Authoritative Reply" from August 2015). There
> > was some discussion over "adding" versus "appending" and it was pointed
> > out that a lot of existing code (e.g., the BSD stub resolver) was
> > written using the "add at the end" meaning.
>
> Are there stub resolvers which actually chase the CNAME chain?
>
> I assume it is quite common just to check the QNAME, and then extract
> A/AAAA records from the answer section without matching their owner
> names (but potentially recording their owner name as the canonical
> name of the host, even though that's rarely useful these days).No. libresolv has checked the owner names of the A (and AAAA) records for decades now skipping any records that don't match. > _______________________________________________ > DNSOP mailing list > DNSOP@ietf.org > https://www.ietf.org/mailman/listinfo/dnsop -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
