Oracle Linux add ip adress - by editing files

How to edit network card settings through configuration files:

Find and edit /etc/sysconfig/network-scripts/ifcfg-eth0 or /etc/sysconfig/network-scripts/ifcfg-eth1(secondary network card) file(s).

Append or modify:

DEVICE=eth0
BOOTPROTO=static
DHCPCLASS=
HWADDR=00:31:48:56:A6:2E
IPADDR=192.168.13.25
NETMASK=255.255.255.0
ONBOOT=yes

Then /etc/sysconfig/network file append or modify:

NETWORKING=yes
HOSTNAME=sir.acid.com
GATEWAY=10.10.1.10

Finally DNS servers in /etc/resolv.conf

nameserver 10.10.1.10
nameserver 10.10.1.11
nameserver 10.10.11.12

/etc/init.d/network restart

or

service network restart