Linux下使用wpa_supplicant工具连接无线WIFI

1.安装wpa_supplicant工具

https://www.cnblogs.com/oracleloyal/p/5566008.html

https://blog.csdn.net/u012503786/article/details/79541811/

centos，rehat安装

~#yum install wpasupplicant -y

debian,ubuntu安装

~#sudo apt-get installl wpasupplicant -y

2.安装iwconfig工具

~#sudo apt-get install iwconfig -y

3.启用无线网卡

~#iwconfig wlan0 //查看无线网卡电源是否打开，Tx-power off表示未打开
~#iwconfig wlan0 txpower on //打开电源
~#ifconfig wlan0 up //启用无线网卡

4.扫描附近无线网络

~#iwlist wlan0 scan |grep ESSID

5.配置无线网卡

~#mkdir -p /var/run/wpa_supplicant #创建wpa_supplicant执行路径
~#touch /etc/wpa.config
~#echo "ctrl_interface=/var/run/wpa_supplicant" > /etc/wpa.config  #创建连接网络配置文件
~#wpa_passphrase your_essid your_password >>/etc/wpa.config  #添加无线网络名称和密码，your_essid和your_password换成你的

6.开启wpa服务进程

~#wpa_supplicant -B -i wlan0 -c /etc/wpa.config

7.使用wpa客户端管理无线网络

~#wpa_cli -i wlan0 status  #查看网络状态

8.测试网络

~#ping www.baidu.com   
#如果ping不通
~#dhclient wlan0
~#ifconfig  #查看ip地址
~#echo "nameserver 192.168.x.x" >> /etc/resolv.conf
~#service network restart

 9.更多详细用法请参照

https://wiki.archlinux.org/index.php/Wpa_supplicant_(%E7%AE%80%E4%BD%93%E4%B8%AD%E6%96%87)
https://wiki.archlinux.org/index.php/Network_configuration_(%E7%AE%80%E4%BD%93%E4%B8%AD%E6%96%87)/Wireless_(%E7%AE%80%E4%BD%93%E4%B8%AD%E6%96%87)#设备驱动
https://blog.csdn.net/hanlunko2016/article/details/81276248  #wpa_cli操作指南