[atlas] Trying to measure Quad9 latency

Thu Nov 23 02:23:48 CET 2017

> On Nov 22, 2017, at 2:05 PM, Stephane Bortzmeyer <bortzmeyer at nic.fr> wrote:
> 
> On Wed, Nov 22, 2017 at 06:27:42PM +0000,
> Eduardo Duarte <eduardo.duarte at dns.pt> wrote 
> a message of 289 lines which said:
> 
>> When I got the results from the measurement they were not what I
>> expected.... The measurements to Quad9 had high value of REFUSAL.
> 
> You did not set the RD (Recursion Desired) bit. Most resolvers refuse
> these queries, to avoid cache snooping.
> 
> Compare with #10290443, which have:
> 
> Recursion desired	True

I also created this measurement, which is a ping one to measure latency to identify what countries receive a poor response.

https://atlas.ripe.net/measurements/10291137/#!probes

- jared