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DNS Response Policy Zones (DNS RPZ) is a method that allows a name server to be configured with information on top of the global DNS to provide alternate responses to queries.

One of the original purposes for DNS RPZ was to provide "DNS Firewall" capabilities. DNS RPZ was originally created to protect internet users from an ever-expanding list of threats, exploits, and attacks. While DNS RPZ excels at providing users protection, it also provides ancillary benefits and can be used to serve a wide variety of other use cases. Here are a few:

  1. DevOps
  2. Static NAT
  3. Split Horizon DNS en...