Hello,
On a low volume e-mail server I run, I also run BIND 9.20.13 as a
recursive resolver. In the configuration file (named.conf), I have the
following directive:
check-names response warn;
In my BIND logs I recently noticed the following:
6-Sep-2025 14:59:04.619 resolver: notice: check-names warning
engadget-ycpi-media_edge.g03.yahoodns.net/A/IN
I was under the impression that check-names would alert me to name
issues in the zones I host on this server (I host a custom DNSBL zone),
but this also applies to foreign zones that I do not host ?
Am I correct, as well, that BIND is taking issue with the _ character in
this particular example ? I seem to think in the original RFC for DNS
this wasn't allowed.
Thanks,
- J
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