Ubuntu 16.04 LTS server Install and configure DNS server

This comprehensive tutorial describes how to install and configure DNS server in Ubuntu 16.04 LTS 64 bit server edition. As you may know already, DNS is the short form of Domain name system, which is used to resolve hostnames into IP addresses and vice versa. For the purpose of this guide, I will be using three systems, one for Primary DNS server, other for secondary DNS, and the third one for DNS client. All systems are running with Ubuntu 16.04 operating systems. Here is the IP and host name of each system.

Primary DNS server:
Operating system : Ubuntu 16.04 LTS 64 bit server
Hostname : pri.ostechnix.lan
IP address : 192.168.1.200/24

Secondary DNS server:
Operating system : Ubuntu 16.04 LTS 64 bit server
Hostname : sec.ostechnix.lan
IP address : 192.168.1.201/24

DNS Client:
Operating system : Ubuntu 16.04 LTS 64 bit server
Hostname : client.ostechnix.lan
IP address : 192.168.1.202/24

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