Ubuntu Wpa wifi connection

最近做一个项目，需要做一个WIFI连接模块，这几天都在折腾，终于，今天终于是连上网络了，只不过连网的过程有点慢，还有一些缺点，先写下来以备忘记。

1、环境建立：

sudo apt-get install wpasupplicant

2、Command:

sudo service network-manager stop

sudo service wicd stop

pkill nm-applet

3、bring our interface up:

sudo ip link set wlan0 up

4、WPA is slightly different. After bring the interfaces up with ip, we will add this to /etc/wpasupplicant/wpa_supplicant.conf

#WPA-PSK/TKIP

update_config=1

ctrl_interface=/var/run/wpa_supplicant

network={

ssid="yourssid"

psk="key"

}

5、run

sudo wpa_supplicant -B wlan0 -c /etc/wpasupplicant/wpa_supplicant.conf

6、add this to the /etc/network/interfaces

auto wlan0

allow-hotplug wlan0

iface wlan0 inet dhcp

wpa-ssid "ESSID"

wpa-psk "password"

7、Finnaly run this.

sudo ifdown wlan0 && sudo ifup wlan0

详情请看链接：

http://crunchbang.org/forums/viewtopic.php?pid=171244%23p171244