CentOS interface configuration - NathanStMarie/tech-journal GitHub Wiki

This is how you can set an interface's IP statically in CentOS 7:

• In order to change the settings of an interface, edit the interface's config file, located in the '/etc/sysconfig/network-scripts/' directory.
• To find the appropriate config file, you could use 'ls /etc/sysconfig/network-scripts/' and get a listing of the files, to which there should be found a 'ifcfg-interfaceName' file. interfaceName being the name of the interface you wish to change the settings of.
• For a static IP, you should have similar settings to these:

BOOTPROTO=none

ONBOOT=yes

IPADDR=10.0.5.200

PREFIX=24

GATEWAY=10.0.5.2

DNS1=10.0.5.5

DOMAIN=example.local

• However, generally speaking it should be understood that this file can have differing key and value pairs.