1. Allow network to do recursion on an ANS

1.1. Introduction

Authoritative Name Servers (ANS) by default are only meant to do resolve domains with which they have authority over.

1.2. Adding another network

To do this, edit your named.conf file, for freebsd, it will most likely be located at /usr/local/etc/named/named.conf

For linux: /etc/named/named.conf

Edit the line

allow-recursion {netA/24;netB/24;IPvnetC::/48;};   #There is a semi-colon before and after }

Ensure that there are no errors with your configs by using the command named-checkconf. If you get an error, please check and correct it.

If no errors arose, you can go ahead and restart or reload the named service. Please ensure that the status of the service is running after you have restarted or reloaded