In this recipe, we will show you how you can quickly add new local domain record entries to your authoritative BIND server which are currently unknown to your nameserver.
To complete this recipe, you will require a working installation of the CentOS 7 operating system and a console-based text editor of your choice. It is expected that Unbound and BIND have both been installed and are already running, and that you have read and applied the zone recipes in this chapter and have prepared the required forward and reverse zone files for resolving hostnames of your private network.
If you want to add new domain names to the IP address mappings to your DNS server, for example for new or unknown hosts in your local network, you have two alternatives. Since we have already created zone files for our local network, we can simply add new A (and/or CNAME) and corresponding PTR entries for every new subdomain within our base domain name into our forward...