Assign Static IP to Red Hat Installation

Assigning a Static IP

Login to your Red Hat server via SSH and run the following command:

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

 This will load the file that contains the configuration options for eth0. You will see something similar to this:

DEVICE=eth0
BOOTPROTO=dhcp
ONBOOT=yes
TYPE=Ethernet

In order to switch from DHCP to a static IP address, we need to change a few of these values. In the following example, you will need to change the values so they match your network:

DEVICE=eth0
BOOTPROTO=static
IPADDR=192.168.168.222
BROADCAST=192.168.168.255
NETWORK=192.168.168.0
NETMASK=255.255.255.0
ONBOOT=yes
TYPE=Ethernet

In this file, we changed the BOOTPROTO configuration option and we added the IPADDR, BROADCAST, NETWORK, and NETMASK options. Leave everything else as is. Once you have updated this file to reflect your network settings, save the file by hitting Ctrl-O and then exit nano by hitting Ctrl-X. Now we need to restart the network service by running the following command:

service network restart

Once the service has been restarted run ifconfig and make sure the IP address has been assigned to the adapter.

What's Next

This is what was achieved and what was omitted in this tutorial.