On Oct 3 2010, I wrote:
Since upgrading our main recursive nameservers to BIND 9.7.2-P2 (and
using a trust anchor for the root and lookaside via dlv.isc.org) I am
seeing a scatter of warning messages like this:
Oct 1 19:47:19 dnssec: warning: validating @1c29d580:
115.197.101.95.IN-ADDR.ARPA PTR:
can't validate existing negative responses (not a zone cut)
[...]
What do they mean, exactly? And should I be worrying about them?
They all seem to refer to PTR records (not all of them for IP
addresses in 95.101/16, but many of them are).
There were some followups, but we never got anything from ISC.
After upgrading to BIND 9.7.2-P3, they appear to have gone away, so
I presume one of the changes (maybe 2970) has fixed them.
--
Chris Thompson
Email: c...@cam.ac.uk
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