Ubuntu Lunar wifi client
From embeddedTS Manuals
Wireless configuration under Ubuntu, similar to Ethernet, also uses netplan for configuration. For example, create /etc/netplan/wifi.yaml:
network: version: 2 renderer: networkd wifis: wlan0: dhcp4: yes dhcp6: yes access-points: "yourssid": password: yourpassphrase"
After creating the yaml file, set the appropriate permissions and apply the netplan:
sudo chmod 600 /etc/netplan/*.yaml
sudo netplan apply