[Pdns-users] rec_control reload-zones undocumented behavior, POLA breakage

Peter van Dijk peter.van.dijk at powerdns.com
Thu Aug 23 14:59:54 UTC 2018

Hello Steinar,

On 20 Aug 2018, at 12:20, sthaug at nethelp.no wrote:

> - Zone removed from the list in forward-zones-file: Forwarding takes
> effect immediately *for names not in the PowerDNS cache*. For names in
> the PowerDNS cache, forwarding doesn't take effect until TTL expires.
> Is this behavior (removal of names already cached vs. names not
> cached) intentional? From my point of view it certainly breaks POLA,
> and means we have to restart the recursor (and thus throw away the
> cache) to ensure that changes to the list in forward-zones-file take
> effect right away.
> If the behavior is intentional it should be documented.

I think an automatic flush on removing a domain would be good. Can you 
please file this request at https://github.com/PowerDNS/pdns/issues/new?

Kind regards,
Peter van Dijk
PowerDNS.COM BV - https://www.powerdns.com/

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