For WPA Wifi, edit the file /etc/wpa_supplicant/wpa_supplicant.conf
as root.
Example:
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=FR
network={
ssid="MY_SSID"
psk="MY_PASSWORD"
key_mgmt=WPA-PSK
}
Replace MY_SSID
by the name of the Wifi network and MY_PASSWORD
by the password of the Wifi network.
Multiple networks can be declared, the one with higher priority will be used if possible:
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=FR
network={
ssid="MY_SSID"
psk="MY_PASSWORD"
key_mgmt=WPA-PSK
priority=2
}
network={
ssid="MY_SSID2"
psk="MY_PASSWORD2"
key_mgmt=WPA-PSK
priority=1
}