Change IP Address on RedHat Enterprise Linux

1. Open Terminal.
2. Open network configuration file. In this example, it’ll configure on interface eth0. Type
vi /etc/sysconfig/network-scripts/ifcfg-eth0
The current and default configuration is DHCP.
3. Modify the file by press ‘i’ to enter insert mode. Change BOOTPROTO to static and add IP Address and Net mask as new lines if they’re not existed yet..
BOOTPROTO=static
IPADDR=192.168.125.10
NETMASK=255.255.255.0
4. Save the configuration file by press ESC + ‘:’ and type ‘wq’ to write and quit the editor.
5. You can added these configuration to the config file. Replace [number] with your actual value.
GATEWAY=[number]
TYPE=Ethernet
NETWORK=[number]
BROADCAST=[number]
6. Restart the network interface card. Type
service network restart
7. Review the configuration. Type
ifconfig