[dns-operations] new public DNS service: 9.9.9.9

[Taras Heichenko]

> On Nov 23, 2017, at 18:29, Stephane Bortzmeyer <bortzmeyer at nic.fr> wrote:
> 
> On Thu, Nov 23, 2017 at 03:46:02PM +0200,
> Taras Heichenko <tasic at hostmaster.ua> wrote 
> a message of 25 lines which said:
> 
>> If you know folks from quad9 could you send to them this link
>> https://www.ripe.net/ripe/mail/archives/ripe-atlas/2017-November/003495.html
>> which point to letter that describe weird effect of quad9 work?
> 
> There is nothing wrong here and Quad9 has nothing to fix. Using ICMP
> to measure the RTT of a DNS server is brittle and yield unexpected
> results. If you want to know the RTT of Quad9, send DNS requests.

Yes, you are right. ICMP is not the service provided by quad9. But anyway
cited result looks strange. If config that cause such ICMP response does not affect
on DNS response then all is ok and nothing to talk about. But this info may be useful
for people from quad9.

--
Best regards

Taras Heichenko
tasic at hostmaster.ua