How to assign static ip address on Linux RHEL CentOS - HowToLinuxBlog

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How to assign static ip address on Linux RHEL CentOS

We will see how to assign static ip address on Linux step by step.

Open terminal (CLI)
Login as root
Edit /etc/sysconfig/network-scripts/ifcfg-eth0 conf file add below lines:

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

DEVICE="eth0"
TYPE="Ethernet"
HWADDR="00:0C:29:20:75:CC"
NM_CONTROLLED="yes"
ONBOOT="yes"
BOOTPROTO="static"
IPADDR="192.168.1.100"
NETMASK="255.255.255.0"

The items that can be defined in an ifcfg file depend on the interface type.

DEVICE= interface; name of physical device.

HWADDR = ethernet hardware address for this device.

NETMASK = Subnet mask.

NM_CONTROLLED=yes|no If set to ‘no’, NetworkManager will ignore this connection/device. Defaults to ‘yes’.

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