[dns-operations] Curious use of cname

P Vixie paul at redbarn.org
Thu Aug 7 04:11:06 UTC 2014

On August 6, 2014 9:08:34 PM PDT, "Colm MacCárthaigh" <colm at stdlib.net> wrote:
>On Wed, Aug 6, 2014 at 7:16 PM, Paul Vixie <paul at redbarn.org> wrote:
>> the now-common CDN trick of inventing a nonstandard "ALIAS" record or
>> similar, that causes the authority server to recurse for any qtype
>> that's not actually present in the zone, and to report that recursive
>> data as authoritative, does not cause any compliant initiator to
>> in any way that's undesirable.
>Just to be clear; this is not what Route 53 does (which is what
>triggered the sub-thread). Route53's ALIAS targets may only be RRSets
>that Route53 is also authoritative for.

Nice. That's a better way to do it then what cloud flare and some others are doing. Thanks for the clarification.

Sent from my Android device with K-9 Mail. Please excuse my brevity.

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