What a great explanation! TYVM for sharing.
> On 10/30/2024 10:57 AM EDT Brian Candler <b.cand...@pobox.com> wrote: > > > On 30/10/2024 14:46, A G via Pdns-users wrote: > > > I'm struggling to see where or how the upstream DNS server pDNS-Recursor > > is looking up requests on.... > It doesn't use an upstream DNS recursor (unless you explicitly configure it > to). > It finds and queries authoritative servers on the Internet, starting with the > root servers and working its way down by following NS records (delegations). > It uses root hints to make initial contact with a root server, and refreshes > its list of root servers from that. > On Ubuntu, those root hints are in /usr/share/dns/root.hints from the > "dns-root-data" package. You don't touch them. > > > > > If it's referring to what's in /etc/resolv.conf, maybe that's a big > > problem if that entry was set via DHCP, and then DHCP is pointing to the > > "local-address" parameter. A loop? > > > > IE, the pdns is serving on: local-address=192.0.2.25, and DHCP is used > > to configure the pdns server with DNS server... > /etc/resolv.conf is used by *applications* on the host to know which resolver > to use. It could point to pdns-recursor running on localhost (which in fact > would be normal), or it could point to a remote machine. > pdns-recursor itself does not use /etc/resolv.conf, nor make queries as > normal application. It is therefore unaffected by what's here. > > If you *do* want pdns-recursor to send all queries to an upstream recursive > server (for example to make use of a third-party filtered DNS service), then > you can configure it do so. In the new YAML-style config in pdns-recursor 5, > you'd write > recursor: > forward_zones_file: /etc/powerdns/forward.zones.yml > and in /etc/powerdns/forward.zones.yml you would put (for example) > > - zone: . > forwarders: > - 2620:fe::fe > - 9.9.9.9 > recurse: true > HTH, > Brian. > _______________________________________________ Pdns-users mailing list Pdns-users@mailman.powerdns.com https://mailman.powerdns.com/mailman/listinfo/pdns-users
