Havard Eidnes via bind-users <bind-users@lists.isc.org> wrote:
>
> If it was due to validation failure, I would have thought that it
> would be more persistent than only last for 10 minutes.

Looking for vaguely plausible causes I guess what might have happened is
there was a DNSKEY lookup failure (transient network problem?), so
validator.c:fetch_callback_dnskey() returned DNS_R_BROKENCHAIN, so the
DNSKEY query was added to the bad cache. After that happens, validation
attempts failed for lame-ttl seconds because of the
dns_resolver_getbadcache() check in validator.c:view_find().

Tony.
-- 
f.anthony.n.finch  <d...@dotat.at>  http://dotat.at/
West Forties, Cromarty, Forth, Tyne, Dogger: Variable, mainly northerly, 2 to
4. Slight or moderate. Fog patches in Forth and Tyne. Moderate or good,
occasionally very poor in Forth and Tyne.
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