Yet another Quadruple DNS?

Stephane Bortzmeyer bortzmeyer at
Thu Mar 29 11:27:23 UTC 2018

On Wed, Mar 28, 2018 at 11:16:15PM +0300,
 DaKnOb <daknob.mac at> wrote 
 a message of 25 lines which said:

> Out of 1,000 RIPE Atlas Probes, only 34 report it as unreachable.

It's still a lot for IPv4. And it measures ony filtering, not hijacking
(which seems to exist, some probes get a DNS reply without the AD
bit, for instance).

Because of the heavy use of in documentation, you can expect a
lot of networks to have trouble. Hey, is even used in
Cloudflare's own documentation!

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