BIND started replying to queries for .com with .COM

Tony Finch dot at
Wed Mar 30 09:50:15 UTC 2016

Mike Bernhardt <bernhardt at> wrote:

> I rebooted one of our BIND VMs this morning. It's running BIND 9.10.3-P3. We
> noticed that queries for domains with 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.

Yes, we encountered that problem recently :-) You can revert to the old
behaviour using

	no-case-compress { any; };

f.anthony.n.finch  <dot at>  -  I xn--zr8h punycode
Viking: Southeasterly 4 veering northwesterly 5 to 7, perhaps gale 8 later in
north. Moderate or rough. Wintry showers. Good, occasionally poor.

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