Ubuntu 18.04: Disable Netplan switch back to networking /etc/network/interfaces Rumi, February 24, 2020June 17, 2020 The following procedure works for Ubuntu 18.04 (Bionic Beaver) I. Reinstall the ifupdown package: # apt-get update # apt-get install ifupdown II. Configure your /etc/network/interfaces file with configuration stanzas such as: source /etc/network/interfaces.d/* # The loopback network interface auto lo iface lo inet loopback allow-hotplug enp0s3 auto enp0s3 iface enp0s3 inet static address 192.168.1.133 netmask 255.255.255.0 broadcast 192.168.1.255… Continue Reading