How to Create Zone file

In the second image as shown we have to create the zone sections.

Zone “example.com” IN {

type master;

file “forward.example.com”;

Allow-update { none; };

};

Zone “1.168.192.in-addr.arpa” IN {

type  master;

file “reverse.example.com”

Allow-update { none; };

};

#named-checkconf -z /etc/named.conf → to validate the configuration file. 

$ After that we have to start and enabled the service

# systemctl start named

# systemctl enable –now named

# systemctl status named

$ you can see that named service is enabled , now we have to add one port on the firewall but it works on two protocols tcp and udp.

# firewalld-cmd –permanent –add-port=53/tcp

# firewalld-cmd –permanent –add-port=53/udp$ After that reload the firewall then check the port are added or not 

# firewalld-cmd –reload 

# firewalld-cmd –list-all