[atlas] Request to test TCP and UDP to the root servers separately.

My day job has had some interesting discussions lately about TCP
to the root servers based on a few odd behaviors we've had reported
to us over the past few years.  There aren't any surprises in this
data, it's been known for a long time some people think DNS is UDP
only for instance, some firewalls are broken, and so on.

What we realized though is that there is no wide-spread measurement
of how often TCP is a problem.  Immediately my thought went to the
Atlas probe network.  It's distributed enough it could give an
interesting indication of how often TCP DNS fails compared to UDP
DNS.  Perhaps the rates are so similar it's a non-issue, perhaps
TCP fails much more often.

Would it be of interest to the Atlas community to have the probes
try and query "." via both UDP and TDP from each of the 13 root
servers (perhaps v4 and v6 separately), report back that data, and
then generate a report on the results?  I would be happy to assist
in preparing or presenting a report on the results!

-- 
       Leo Bicknell - bicknell at ufp.org - CCIE 3440
        PGP keys at http://www.ufp.org/~bicknell/