DNS Server Configuration On Linux Redhat 6

Hi Friends Today We learn How to configure DNS Server on RHEL-6, I fresh install RedHat-6 and yum is already configure on this machine so before starting this session see my current environment .

My Linux OS     -RHEL-6

My Machine IP  -192.168.0.100

My Hostname    - mylinux

My FQDN         -mylinux.mydns.com 

How DNS Works Scenario .

Hi See my Network Configuration File.

vi /etc/sysconfig/network-scripts/ifcfg-eth0

Set FQDN of my Machine as below command

hostname mylinux.mydns.com

vi /etc/sysconfig/network

NETWORKING=yes

HOSTNAME=mylinux.mydns.com

vi /etc/hosts

192.168.0.100  mylinux.mydns.com  mylinux

vi /etc/resolve.conf

search mylinux.mydns.com

nameserver 192.168.0.100

Now install bind RPM which is require for dns-named Service .

yum install bind*
copy default configuration file to given path .

cp /etc/named.conf /var/named/chroot/etc/named.conf

Go to path and make changes  accordingly our environment .

cd /var/named/chroot/etc/
This is Main Configuration file of DNS 

vi named.conf

chgrp named named.conf

cp /var/named/named.localhost /var/named/chroot/var/named/for.zone

cp /var/named/named.loopback /var/named/chroot/var/named/rev.zone

cd /var/named/chroot/var/named
Make file which will use for Forward Zone.

vi for.zone

Make File which will use for Reverse Zone .

vi rev.zone

chgrp named for.zone

chgrp named rev.zone

Restart DNS Service and set it as permanently On when server Power ON .

service named restart

chkconfig named on

To Check named server working or not it will show result similar as below Image .

dig 192.168.0.100

                                                     Done!!!!

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