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Change RPi wifi password |
Recently someone exposed my wifi password, so I had to change it. The most annoying part was dealing with my Raspberry Pis and other headless single board computers.
If you can SSH to your Pi because, for example, it's near a convenient ethernet port,
life is easy. Edit /etc/wpa_supplicant/wpa_supplicant.conf
and replace your old
password with your new password.
Apply the change with wpa_cli -i wlan0 reconfigure
and wait for the Pi to connect.
Monitor ip addr show wlan0
to see if the device is assigned an IP address from your
router.
Remove the SD card from the Pi, insert it in to another machine, and drop a
wpa_supplicant.conf
file on to it. It might look like:
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
country=US
update_config=1
network={
ssid="MySSID"
psk="MyPassword"
}