[dns-operations] lowercasing of questions from recursor to auths?

David C Lawrence tale at akamai.com
Fri Feb 5 17:38:00 UTC 2016


Edward Lewis writes:
> I can't reproduce this one.  (dig "WIDGET.CRITEO.COM a" vs. "dig
> widget.criteo.com a" as an example comparison.)

Is that your whole command?  It's pretty obvious when you dig directly
at one of their nsN.criteo.com servers.  Doesn't matter which part of
the label has a capital letter, either.  Compare:

dig widget.criteo.com @ns1.criteo.com -> 1 A,   300s TTL
dig widget.criTeo.com @ns1.criteo.com -> 7 As, 3600s TTL

Someone here observed that they appear to be geo mapping, but the
decision to do that is only being triggered based on a case-sensitive
match.

Independent of Peter's original question, it appears these people need
to be informed that their authority server is broken and to fix it.



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