So here we have another Linux distro that wants to do things their own way, to create a permanent static IP interface setting, you need to go to the following location:
Locate the file called interfaces
By default, this file (for me) contains the following:
# This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). source /etc/network/interfaces.d/* # The loopback network interface auto lo iface lo inet loopback # The primary network interface allow-hotplug eth0 iface eth0 inet dhcp
From this we can see that the interface eth0 is configured as a dhcp client. We need to add our static entries like this: (using your own values obviously)
auto eth0 iface eth0 inet static address 192.0.2.7 netmask 255.255.255.0 gateway 192.0.2.254 dns-nameservers 22.214.171.124 126.96.36.199
Save the file and reboot.