Figure out which interface you want to configure
ip linkEdit the config file for that interface
vim /etc/sysconfig/network-scripts/ifcfg-XXXXXModify BOOTPROTO and ONBOOT values
BOOTPROTO=static <-- tell the system that we're setting a static
ONBOOT=yes <-- enable the network when starting the systemUse the following directives in the config file
IPADDR=
NETMASK=
GATEWAY=
DNS1=
DNS2=
usermod -aG [GROUP] [USER]
usermod -aG wheel ross