Struggling tonight to find basic information on getting a machine back on the network. Wired dhcp no longer works and I can't figure out how to even do a static assignment. I have a wired and wireless card in this machine, installed basic minimal server install from ubuntu-18.04.2-server-ambd64.iso and network did not come up during install. I figured I could troubleshoot once I got it up. Any help on netplan howto / 101 / stupid simple config would be appreciated. I have never heard of it and don't have a lot of time to get this machine connected.
Kind of unbelievable you have to go learn a new subsystem to get something so completely basic running. This seems like a terrible choice. Adding the ethernets: section to the default .yaml file and then running sudo netplan apply seemed to get an IP address assigned.
network: version: 2 renderer: networkd ethernets: enp3s0: dhcp4: true