1. Stop and disable gnome NetworkManager
# systemctl stop NetworkManager.service
# systemctl disable NetworkManager.service
2. Start and enable network service
# systemctl restart network.service # systemctl enable network.service
3.make changes in
TYPE=Ethernet BOOTPROTO=static DEFROUTE=yes IPV4_FAILURE_FATAL=no NAME=eth0 UUID=15da7b6d-8cde-3858-883b-2901ba6168b6 ONBOOT=yes