Setup wireless networking

One of the first items to setup on a freshly installed Pi is wireless networking. To do so, you have to edit the wpa_supplicant file.

First go to the root environment

$ sudo su

On the root prompt enter

# wpa_passphrase "ssid" "password" >> /etc/wpa_supplicant/wpa_supplicant.conf

replace the ssid and password with the values of your wireless network. This command will create a wireless setup file with the ssid and password of your wireless network. By default this file will also contain a line with the unencrypted password, so for security reasons we will delete this line.

Exit the root environment by typing exit and edit the wpa_supplicant.conf file by typing

$ sudo nano /etc/wpa_supplicant/wpa_supplicant.conf

Remove the line starting with #psk=

        #psk="password" <-- remove

Save the file and exit nano by pressing CTRL+X followed by Y

Restart the wireless interface (assuming your wireless device is wlan0) by typing

$ sudo wpa_cli -i wlan0 reconfigure

Within a few seconds you should be connected to the wireless network. You can check this by typing

$ ifconfig wlan0

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