First, you need to install the relevant software. You need to have a wired connection at this point, otherwise this wont work.
sudo apt-get install wireless-tools wpasupplicant
If you are connecting to an open network, you wont need wpasupplicant. Next, you need to “bring up” (essentially this means activate) your WiFi interface. So, issue:
sudo ifconfig wlan0 up
Next, to make sure your wireless device is working as it should issue:
iwconfigand then
sudo iwlist scanwpa_passphrase YOURSSID YOURWIFIPASSWORD
This will result in something that looks like this:
network={
ssid="YOURSSID"
#psk="YOURWIFIPASSWORD"
psk=fe727aa8b64ac9b3f54c72432da14faed933ea511ecab1 5bbc6c52e7522f709a
}sudo nano /etc/network/interfacessudo vi /etc/wpa_supplicant.conf
ctrl_interface=/var/run/wpa_supplicant ctrl_interface_group=0
eapol_version=2
ap_scan=1
fast_reauth=1
country=NL
### Associate with any open access point
### Scans/ESSID changes can be done with wpa_cli
network={
ssid=""
key_mgmt=NONE
priority=1
}
# WEP
network={
ssid="ubuntuwifi"
scan_ssid=1
key_mgmt=NONE
wep_key0="OpenSesame"
wep_key1="OpenOtherSesame"
# Use the correct key..
wep_tx_keyidx=0
priority=5
}
# WPA/WPA2
network={
ssid="ubuntuwifi"
scan_ssid=1
psk=24f87a7583001eb7cea2394bbdb04eb2d3641f0b907dd31bd286be628c1841f8
priority=5
## The configuration items listed below do not need to be set, the defaults are
## pretty 'let us do it for you'.
## See /usr/share/doc/wpasupplicant/wpa_supplicant.conf.gz for more information.
# key_mgmt=WPA-PSK
# proto=WPA RSN
# pairwise=CCMP TKIP
# group=CCMP TKIP
}
start WPA/WPA2
/sbin/wpa_supplicant -c /etc/wpa_supplicant.conf -i wlan0 -D -B -f /var/log/wpa_supplicant.log
