待連接的WIFI的ssid為“thm”，密碼為12345678，認證方式為WPA2-PSK
1. 檢查無線網卡驅動是否安裝
1 xxx#iwconfig
若打印wlan0（或其他名字）的無線網卡信息，則表明無線網卡驅動已經安裝，否則要先安裝無線網卡驅動方能繼續。
2. 配置/etc/sysconfig/network-scripts/ifcfg-wlan0
我的配置文件內容為：
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. 后台運行wpa_supplicant進程
1 xxx#wpa_supplicant -B -Dwext -iwlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf
6. 搜索無線網絡
1 xxx#iwlist wlan0 scan | grep ESSID
7. 連接無線網絡
1 xxx#iwconfig wlan0 essid "thm"
8. dhcp方式獲取ip
1 xxx#dhclient wlan0
9. 測試網絡是否聯通
1 xxx#ping www.baidu.com