Maintained by: NLnet Labs

[Unbound-users] negative cachetime

Patrik Lundin
Tue Mar 10 08:55:13 CET 2015


On Mar 10, 2015 8:50 AM, "Patrik Lundin" <patrik.lundin.swe at gmail.com>
wrote:
>
>
> On Mar 10, 2015 8:06 AM, "A. Schulze" <sca at andreasschulze.de> wrote:
> >
> > at t=3 the same or an other client ask unbound again for
test.example.org.
> > the answer is still NXDOMAIN. t=3 is more then 14 hours later.
> >
> > How long I have to wait until unbound forget the NXDOMAIN
> > and fetch new data from authoritative server? Could that be controlled
somehow?
> >
> > The SOA-Reord for example.org looks like this:
> > example.org. 12967 IN SOA example.org. hostmaster.example.org.
1501261358 43200 7200 2419200 86400
> >
>
> The SOA minimum TTL is set to 86400 (24 hours). This is the value that
controls how long a NXDOMAIN is cached.
>
> You can see the current remaining TTL by querying your cache with dig.
>

Forgot to include the list in my response.

Regards,
Patrik Lundin
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