

Sorry, I wasn’t clear - I use PowerDNS so that I can more easily deploy services that can be resolved by my internal networks (deployed via Kubernetes or Terraform). In my case, the secondary PowerDNS server does regular zone transfers from the primary in order to ensure it has a copy of all A, PTR, CNAME, etc records.
But PowerDNS (and all DNS servers really), can either be authoritative resolvers or recursors. In my case, the PDNS servers are authoritative for my homelab zone/domain and they perform recursive lookups (with caching) for non-authoritative domains like google.com, infosec.pub, etc. By pointing my PDNS servers to PiHole for recursive lookups, I ensure that I have ad blocking while still allowing for my automation to handle the homelab records.
Thanks for the recommendation - I just finished it (it’s a slow day). What an incredibly depressing and vivid book.