Using the rndc Utility
The rndc utility is a command line tool that allows you to administer the named service, both locally and from a remote machine. Its usage is as follows
rndc [option...] command [command-option]
Configuring the Utility
To prevent unauthorized access to the service, named must be configured to listen on the selected port (that is, 953 by default), and an identical key must be used by both the service and the rndc utility.
The rndc configuration is located in /etc/rndc.conf. If the file does not exist, the utility will use the key located in /etc/rndc.key, which was generated automatically during the installation process using the rndc-confgen -a command.
