On Thu, Mar 17, 2022 at 01:04:55PM +0100, Pepe Charli via Pdns-users wrote:
> Hi, > > I am experiencing some "strange" behavior with pDNS Recursor ( > pdns-recursor-4.4.7-1pdns.el7.x86_64) > > The recursor is configured to forward all zones to other DNS servers > > forward-zones-file=/path/to/file > and the file itself contains > .=192.168.68.63, 192.168.68.64 > > From time to time the resource stops resolving and if I reload-zones it > resolves again correctly > > This is a trace of when it fails > https://pastebin.com/raw/mH3ci9Ss > > And this is a trace of when it works after reload-zones > https://pastebin.com/raw/pWAW02QK What you are seeing is an interaction of the forward-zones, cached NS records and dont-query values. Despite what is said about the "dont-query'" setting in https://docs.powerdns.com/recursor/settings.html#dont-query there are cases where this does not work as designed. This likely happens when NS records of subzones of a forwarded zone are cached. Probable workaround: make sure you dont list the IPs you are forewarding to in in "dont-query". See the URL above for the default value. I'm putting this on my list of things to investigate. -Otto _______________________________________________ Pdns-users mailing list Pdns-users@mailman.powerdns.com https://mailman.powerdns.com/mailman/listinfo/pdns-users
