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WPA Supplicant

sillyfrog Example SSID for this document
mypassword123 Example passphrase for this document
wlan0 Example interface for this document

You can generate a config file like this:


wpa_passphrase sillyfrog mypassword123 > /etc/wpa_supplicant/example.conf

You can setup a config file by hand like this:

/etc/wpa_supplicant/wpa_supplicant.conf

ctrl_interface=/run/wpa_supplicant
ctrl_interface_group=wheel
update_config=1
ap_scan=1
country=US

network={
    ssid="sillyfrog"
    psk=59e0d07fa4c7741797a4e394f38a5c321e3bed51d54ad5fcbd3f84bc7415d73d
}

Start it up:


wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf

You can use a clear text password instead of a key like this:


psk="mypassword123"

No password

If you prefer not to use a password you can do so like this:


network={
   ssid="MYSSID"
   key_mgmt=NONE
}

References