How to setup DNS BIND service in Ubuntu OS

Here in this article we will try to install and configure the DNS BIND server in Ubuntu for hostname (FQDN) to IP address resolution and vice-versa.

Table of Contents

Test Environment

Ubuntu 12.04

sudo apt-get update

sudo apt-get install bind9

Also, install the clients package useful for testing and troubleshooting DNS issues if already not installed.

sudo apt-get install dnsutils

Here we will be updating the named.conf.local DNS configuration file to convert it into a primary master server for the domain “galaxy.com”.

Configure the named.conf.local bind file as show below.

File: /etc/bind/named.conf.local

In this step we will configure the named.conf.options file with the DNS server IP address to which the requests will be forwarded,

Here we will update the new zone database file with the Fully qualified domain name and the machine names that the DNS server will know.

File: /etc/bind/zones/galaxy.com.db

Here we will update the reverse zone database file as shown below.

File: /etc/bind/zones/rev.121.168.192.in-addr.arpa

Let’s now restart the bind9 service which can be restarted using the below two options.

sudo service bind9 restart

sudo /etc/init.d/bind9 restart

Here we will update the /etc/resolve.conf file with the search domain_name and nameserver IP address as show below.

Now it’s time to test our DNS configuration as shown below.

NOTE: Here a static IP address (192.168.121.100) has been configured for the Host machine.

Hope you enjoyed reading this article. Thank you..