[atlas] Querying popular domains with RIPE Atlas

Hi Hugo,

On 21/02/2017 15:16, Hugo Salgado-Hernández wrote:
> Dear Chris.
> It seems fine from my perspective. The second measurement should
> be answered by resolver's cache, being top-resolved names.
> 
> But what are you thinking on the first measurement? I'd try to
> reduce to a minimun sending random queries to root servers, an
> infrastructure frequently abused :( Also for the benefit of
> transparency and politeness you could prepend some string on
> the form "ripe-atlas-test-measurement.<random>."

The intention of the first measurement is to check the actual
reachability of the root zone name servers from probe resolvers. This is
a measurement which was requested by the K-Root operations team within
the RIPE NCC, and is intended to show the reachability of the root zone
servers in general given issues with a particular root letter.

These measurements will indeed be constructed in a way similar to how
you suggested: <probe_id>.atlas.ripe.net.<random>.

Kind regards,
Chris Amin
RIPE NCC


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