netplan file ubuntu
# sudo su # cp /etc/netplan/01-netcfg.yaml /etc/netplan/01-netcfg.yaml.bak # nano /etc/netplan/01-netcfg.yaml #configuration example network: ethernets: ens33: dhcp4: true optional: true ens34: dhcp4: false addresses: [192.168.231.3/24] gateway4: 192.168.231.50 nameservers: addresses: [192.168.231.50, 8.8.8.8] ens35: dhcp4: true version: 2 # netplan try # netplan apply