How to configure DHCP on CentOS / RHEL

For example we need configure DHCP client on eth0 for getting dynamic IP’

1. Start editing /etc/sysconfig/network-scripts/ifcfg-eth0 file using text editor:

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

Sample configuration:

HWADDR=your MAC address
DEVICE=eth0
BOOTPROTO=dhcp
ONBOOT=yes

Save and close just edited ifcfg-eth0 file

2. Restart network service:

# /etc/init.d/network restart