DNS control utility rndc

rndc controls the operation of a name server by communicating with the name server over a TCP connection.

Configuration file, /etc/bind/rndc.conf

key "rndckey" {
	algorithm hmac-md5;
	secret "ylnZwDNmLo7xwJDNzIW0zg==";
};

options {
	default-key "rndckey";
	default-server 127.0.0.1;
	default-port 955;
};

Key file, /etc/bind/rndc.key

key "rndckey" {
	algorithm hmac-md5;
	secret "ylnZwDNmLo7xwJDNzIW0zg==";
};

Reload the configuration and the Zone files:

rndc  reload

Server status

rndc status

Flush the server caches

rndc flush

Stop the server

rndc stop

Show all possible rndc commands

rndc

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