vim /etc/netplan/01-netcfg.yaml
network:
version: 2
renderer: networkd
ethernets:
ens3:
dhcp4: no
addresses:
- 192.168.121.199/24
gateway4: 192.168.121.1
nameservers:
addresses: [8.8.8.8, 1.1.1.1]
sudo netplan apply
źródło: https://linuxize.com/post/how-to-configure-static-ip-address-on-ubuntu-18-04/