How to Set and activate an IP address in Linux

In Linux, the/etc/sysconfig/network-script/ifcfg-eth0 file stores information about the IP Address Configuration of the sub-nic, the specific format is:

# Cat ifcfg-eth0 [root @ localhost network-Scripts] #
Device = eth0
Bootproto = none
Onboot = Yes
Type = Ethernet
Netmask = 255.255.255.255.128
Ipaddr = 11.19.13.16
Userctl = No
Peerdns = Yes
Gateway = 61.49.23.129

As long as the data items in the file are configured according to the preceding format
/Etc/init. d/network reload command or
Service Network [command]
Re-import the file to start the network. :)