Access Control (ACL) by prefix IPv4 and IPv6, for use of the recursive DNS service.


In BrbOS it is possible to create ACLs and / or firewall rules to ensure that only permitted network clients are served, and that the recursive server can query external DNS servers.


So you can create rules for:


  • accept requests from range and request queries from range and;
  • Only accept recursive queries for RFC 1918, while responding zone records for any IP. Very useful functionality to make recursive and reverse on the same machine;
  • accept only query for zone records and not work as recursive;
  • deny or refuse recursive prefix queries
  • deny or refuse to query zones by prefix





Download and install right now on a server or virtual machine.