[Pdns-users] PowerDNS Recursion / Forward-Zone (Strange issue)

bert hubert bert.hubert at powerdns.com
Fri Feb 15 13:51:23 UTC 2019

Hi Devin,

First thing of note, you forward using

This is never going to work, you should remove "*.".

Can you see if that helps?


> Dear Users, I am running the latest version of PowerDNS Recursion
> software, and I had an outage this morning in Production and experienced
> some strangeness that I couldn’t explain, was hoping someone might have an
> explanation of what happened.  So the recursion configuration had a single
> domain that was listed in the forward-zones section like this:
> forward-zones=*.domain.com= A user added some records to the
> Authoritative domain and the Authoritative domain when queried would
> return the result, however the Recursion was returning (no records) for
> the newly added records.  As far as I know the record never was requested
> before it was added to DNS, so it should’t have been cached in the
> negative response which seems to be for a day cached by default.  It was
> resolving older records just not the new ones.  I then restarted the
> powerdns recursion daemon, and all of a sudden it stopped answering for
> all forward requests for the zone “domain.com” in my example here.  After
> some time it started resolving all domains and the new records, but I had
> to in a hurry change back to our old Bind system because it caused an
> outage.  I’m a bit worried why it completely stopped responding for a
> period of time for all records, then now appears to be happy.  I am not
> sure if it has something to do with the Caching between the Authoritative
> server and the Recursion, but something happened.  Any help would be
> greatly appreciated.  Devin Acosta

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