Configuring WiFi

Before configuring WiFi it is best to shut down other interfaces:

ifconfig eth0 down
ifconfig usb0 down

Now let’s start WiFi:

ifconfig wlan0 up
iw dev wlan0 scan | grep ssid -i

The last command will list the WiFi hot spots in range.
If a WiFi network uses WPA authentication the following commands will connect to it:

cp /etc/wpa_supplicant.conf .
wpa_passphrase [SSID] [passphrase] >> ./wpa_supplicant.conf

Please insert the name of the WiFi network and the passphrase in the command above without quotes or the brackets.
Now connect to the WiFi network:
wpa_supplicant -B -Dnl80211 -iwlan0 -cwpa_supplicant.conf

The connection can be checked by: iw dev wlan0 link

When connected to the network IP address can be requested by: dhclient wlan0