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[atlas] Trying to measure Quad9 latency
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Jared Mauch
jared at puck.nether.net
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
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