How do I configure the Internet Protocol version 4 (IPv4) for a network connection with a static IP address on servers running Linux? How do I configure static IP address for Redhat / RHEL / Fedora / Redhat Enterprise Linux server
1. You can change the ip-address of the server temporarily using ifconfig command For example, the following changes the ip-address of the server on eth0 interface to 67.105.23.17
# ifconfig eth0 to 67.105.23.17
2. You can change the IP Address permanently under the /etc/sysconfig/network-scripts directory, you’ll see file for every network interface on your system. For example, if your interface is “eth0″, you’ll see ifcfg-eth0 file under this directory.
Modify the ifcfg-eth0 file with your favorite text editor (a lot of people prefer to use vi or nano) and change the IPADDR field accordingly as shown below to change the ip-address.
# vi /etc/sysconfig/network-scripts/ifcfg-eth0
Change the IP address to the correct IP, make sure that the Netmask and Gateway are configured correctly as well and save.
# vi /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE="eth0"
BOOTPROTO=none
ONBOOT=yes
TYPE="Ethernet"
IPADDR="67.105.23.17"
NETMASK="255.255.255.0"
GATEWAY="67.105.23.1"
After you save the the ifcfg-eth0 you will have to restart the network. You can restart the network with the following command.
# service network restart