pi@raspberrypi:~ $ cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
# Please note that this file is written to be used with dhcpcd
# For static IP, consult /etc/dhcpcd.conf and 'man dhcpcd.conf'
# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d
# auto lo
# iface lo inet loopback
# iface eth0 inet manual
# allow-hotplug wlan0
# iface wlan0 inet manual
# wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
# allow-hotplug wlan1
# iface wlan1 inet manual
# wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
# Ethernet
auto etho
allow-hotplug eth0
iface eth0 inet static
address 192.168.46.99
netmask 255.255.255.0
gateway 192.168.46.1
dns-nameservers 192.168.46.1 8.8.8.8
# dns-domain raspberrypi.local # optional
pi@raspberrypi:~ $