[dns-operations] RFC7816 - do not remove

[Petr Špaček]

On 18.12.2017 09:40, Anand Buddhdev wrote:
> On 18/12/2017 09:15, T.Suzuki wrote:
> 
>> What's this? :-)
>>
>> ~% drill txt elb.amazonaws.com @r1.amazonaws.com
>> ;; ->>HEADER<<- opcode: QUERY, rcode: NOERROR, id: 4102
>> ;; flags: qr aa rd ; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 4 
>> ;; QUESTION SECTION:
>> ;; elb.amazonaws.com.	IN	TXT
>>
>> ;; ANSWER SECTION:
>> elb.amazonaws.com.	300	IN	TXT	"RFC7816 - do not remove"
> 
> A few days ago, someone complained, on Twitter, about Amazon breaking
> QNAME minimisation by answering NXDOMAIN for ENTs. I think this may be
> their (temporary) fix.

For reference, here is thread on Amazon support forum:
https://forums.aws.amazon.com/thread.jspa?threadID=269116

Petr Špaček  @  CZ.NIC