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

DEVICE=”eth0″
NM_CONTROLLED=”yes”
ONBOOT=yes
HWADDR=A4:BA:DB:37:F1:04
TYPE=Ethernet
BOOTPROTO=static
NAME=”System eth0″
UUID=5fb06bd0-0bb0-7ffb-45f1-d6edd65f3e03
IPADDR=192.168.1.44
NETMASK=255.255.255.0

## Configure Default Gateway #
# vi /etc/sysconfig/network

NETWORKING=yes
HOSTNAME=centos6
GATEWAY=192.168.1.1

## Restart Network Interface #

/etc/init.d/network restart

## Configure DNS Server #
# vi /etc/resolv.conf

nameserver 8.8.8.8      # Replace with your nameserver ip
nameserver 192.168.1.1  # Replace with your nameserver ip