AW: AW: AW: Unbound - Shared Cache

Talkabout talk.about at
Wed Feb 12 17:18:34 UTC 2020

Hi George,

would it be an Option to add a configuration setting to the backend configuration saying whether TTL should be applied or not? It will simplify the Cache handling.


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Von: George Thessalonikefs
Gesendet: Mittwoch, 12. Februar 2020 18:11
An: Talkabout; unbound-users at
Betreff: Re: AW: AW: Unbound - Shared Cache

Hi Peter,

On 12/02/2020 12:59, Talkabout wrote:
> Hi George,
> Maybe it’s stupid but it still not completely clear for me. As Unbound
> knows when a particular entry Needs to be invalidated (based on the
> configuration it received upon load) Setting the TTL via EXPIRE would
> also work for the case you mentioned (serving outdated entries based on
> Unbound configuration). Maybe I am missing something?
You are right that this could work but it may also be the case that you
want to turn on (or reconfigure) serve-expired on the fly through
In that case you would like to have the expired records still lying around.

Best regards,
-- George
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