source /etc/network/interfaces.d/*
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
allow-hotplug ens192
iface ens192 inet static
address 10.0.0.250
netmask 255.0.0.0
gateway 10.0.0.1
metric 0
iface ens192 inet6 auto