待連接的WIFI的ssid為“thm”，密碼為12345678，認證方式為WPA2-PSK

1. 檢查無線網(wǎng)卡驅動是否安裝

1 xxx#iwconfig

若打印wlan0（或其他名字）的無線網(wǎng)卡信息，則表明無線網(wǎng)卡驅動已經(jīng)安裝，否則要先安裝無線網(wǎng)卡驅動方能繼續(xù)。

2. 配置/etc/sysconfig/network-scripts/ifcfg-wlan0

我的配置文件內(nèi)容為：

1 DEVICE=wlan0
2 HWADDR=9C:4E:36:9A:64:10
3 TYPE=Wireless
4 UUID=f017bd9c-eebf-46fc-823c-7f76cc8d5abf
5 ONBOOT=no
6 NM_CONTROLLED=yes
7 BOOTPROTO=dhcp
8 ESSID="thm"

3. 安裝工具wpa_supplicant

1 xxx#yum install wpa_supplicant

4. 配置/etc/wpa_supplicant/wpa_supplicant.conf，寫入相關ssid和對應的密碼

1 xxx#wpa_passphrase thm 12345678 >> /etc/wpa_supplicant/wpa_supplicant.conf

我的配置文件內(nèi)容為：

1 ctrl_interface=/var/run/wpa_supplicant
2 ctrl_interface_group=wheel
3 
4 network={
5                 ssid="thm"
6                 #psk="12345678"
7                 psk=eabb3e1572789c41a1600051b1235e03c0787c88fc527f6597cd29cb5a707822

5. 后臺運行wpa_supplicant進程

1 xxx#wpa_supplicant -B -Dwext -iwlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf

6. 搜索無線網(wǎng)絡

1 xxx#iwlist wlan0 scan | grep ESSID

7. 連接無線網(wǎng)絡

1 xxx#iwconfig wlan0 essid "thm"

8. dhcp方式獲取ip

1 xxx#dhclient wlan0

9. 測試網(wǎng)絡是否聯(lián)通

1 xxx#ping www.baidu.com