wpa_supplicant configurations are stored in /etc/wpa_supplicant/wpa_supplicant-wlan0 (or equivalent).
Generating Keys Manually
wpa_passphrase [ssid] [password]
wpa_passphrase ‘Cafe Kosachok’ ‘Kosachok2019’
This then spills the relevant psk and such to be entered into the wpa_supplicant configuration file.
If you encounter problems, you will probably need to delete the old device pid in (e.g.) /run/wlan0/
Next up, start wpa_supplicant:
wpa_supplicant -B -iwlan0 -c /etc/wpa_supplicant/wpa_supplicant-wlan0
The -B flag runs this as a background process. Remove this to see real-time output in order to solve problems. The -i flag denotes the physical device used for the wifi. The -c flag points to the configuration file for use.
Automatic WiFi Connection
This has a number of commands to input. In order:
This outputs a network number, e.g. ‘3’. This is the new network you’ll work with.
set_network 3 ssid “Kosachok Cafe”
set_network 3 psk “Kosachok2019”
OR (for no password)
set_network 3 key_mgmt NONE
…and for the impatient:
sudo sv restart wpa_supplicant
You can script like this:
That returns an ID, so you can say:
$newNetwork would equal that number, and you can add/ remove networks with scripts.
But remember to escape the quotes, so adding a network would be:
wpa_cli set_network 3 psk "“passphrase”"