BIND started replying to queries for .com with .COM
Mark Andrews
marka at isc.org
Wed Mar 30 00:19:15 UTC 2016
Your monitoring probe is broken.
STD 13 says that that the DNS is case preserving. The problem is
that lots of servers aren't case preserving instead they echo back
the query case in the owner names of records returned which named
then records.
In message <030101d18a06$fa21c8d0$ee655a70$@bart.gov>, "Mike Bernhardt" writes:
> I rebooted one of our BIND VMs this morning. It's running BIND 9.10.3-P3. We
> noticed that queries for domains with domain.com were answered with
> domain.COM with the .COM in capital letters. Other high-levels like .org
> were not changed. It caused a monitoring probe to complain because it wasn't
> getting back what it asked for.
>
> Restarting bind on this server fixed the problem. Any ideas on what
> happened, or where to look?
>
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--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: marka at isc.org
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