Follow these steps to add host to your environment on primary Nameserver:
- Forward zone file: Add an "A" record for the new host, increment the value of "Serial"
- Reverse zone file: Add a "PTR" record for the new host, increment the value of "Serial"
- Add your new host's private IP address to the "trusted" ACL (named.conf.options)
Then reload BIND:
sudo service bind9 reload