If you want static IP addresses on your Ubuntu Server with Netplan, here is sample config
sudo nano /etc/netplan/00-installer-config.yaml
network:
ethernets:
enp0s31f6:
addresses:
- 172.20.30.82/24
nameservers:
addresses:
- 1.1.1.1
search:
- yourplace.net
routes:
- to: default
via: 172.20.30.254
enp14s0f0:
addresses:
- 10.20.30.5/24
nameservers:
addresses: []
search: []
enp14s0f1:
addresses:
- 10.20.30.6/24
nameservers:
addresses: []
search: []
version: 2