[atlas] Trivia of the day: Atlas probes and alternative DNS roots

On Sun, Mar 12, 2017 at 03:54:51PM +0100,
 Stephane Bortzmeyer <bortzmeyer at nic.fr> wrote 
 a message of 7 lines which said:

> A quick test with a thousand probes seem to indicate that less than a
> dozen of all the probes use an alternative DNS root (or, more stricly,
> use a DNS resolver which is configured for an alternative root).
> 
> The only alternative root used seems to be OpenNIC.

Note that it may not be a conscious choice by the probe's DNS resolver
operator: it could be hijacking.

For instance, probe 32001 gets an answer from the root name server B
in 3 ms, while traceroute shows a correct delay (B-root is only in the
USA). And this answer is for the OpenNIC root, so this answer is
certainly not from the real B-root.

(This operator, AS 23860, does other funny things.)