* Mark Andrews:
> 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.
Okay. Is it necessary to retain those checks and even fix them to
avoid the CNAME ordering assumption?
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