23 Nov
2017
23 Nov
'17
2:23 a.m.
On Nov 22, 2017, at 2:05 PM, Stephane Bortzmeyer <bortzmeyer@nic.fr> wrote:
On Wed, Nov 22, 2017 at 06:27:42PM +0000, Eduardo Duarte <eduardo.duarte@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