On 07/02/2015 10:26 AM, Sven Ulland wrote:
If yes: Are you the zone admin? Unbound is correctly caching the
authoritative response from the zone servers. This is called negative
caching and has its own RFC https://tools.ietf.org/html/rfc2308 due to
all the subtleties involved.
In short, you may have success with tuning the zone's SOA minimum
field, ref https://tools.ietf.org/html/rfc2308#section-5
And I just saw the 1.5.4rc1 release note about cache-max-negative-ttl,
which can be used in this sort of situation; very useful when you
don't have control of the zone.
https://github.com/jedisct1/unbound/commit/0ef133ea5819fbf7518de9c8492c5e05c95ac8ce
(@NLnet Labs: Is it possible to link to browsable svn commits?)
sven
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