Raspberry Pi - WPA mode的Wireless Client

將Raspberry Pi的角色，變成Wireless Client
1.使用wpa_passphrase把密碼先加密一下

$ wpa_passphrase "HOME-2F" "aAbBcCdD"

2. 將密碼寫入/etc/wpa.conf

$ sudo vi /etc/wpa.conf
network={
        ssid="HOME-2F"
        #psk="aAbBcCdD"
        psk=1f09d3755fc2592aa4f4e282d3c57cce737e22dce4c3ccdca93852b3a7ee1283
}

3. 新增interface

$ sudo vi /etc/network/interfaces
iface wlan0 inet dhcp
wpa-scan-ssid 1
wpa-ap-scan 1
wpa-key-mgmt WPA-PSK
wpa-proto RSN WPA
wpa-pairwise CCMP TKIP
wpa-group CCMP TKIP
wpa-ssid "HOME-2F"
wpa-psk 1f09d3755fc2592aa4f4e282d3c57cce737e22dce4c3ccdca93852b3a7ee1283

4. 將wireless介面關掉

$ sudo ifdown wlan0

5. 將wireless介面啟動

$ sudo ifup wlan0