转载自:https://www.linuxidc.com/Linux/2015-07/119555.htm
1.切换到超级用户
[Oscar@localhost 桌面]$ su root
2.查询可用的无线网卡,其中红色为网卡号
[Oscar@localhost 桌面]$ iw dev
phy#0
Interface wlp2s0
ifindex 3
wdev 0x1
addr a4:db:30:84:4b:1c
type managed
注意,如果成功连接网络的话,应该是下面这样子的, ssid就是广播信道名称,也就是你的无线网络信号呀,广播信道就是最后一个
[root@localhost 桌面]# iw dev
phy#0
Interface wlp2s0
ifindex 3
wdev 0x1
addr a4:db:30:84:4b:1c
ssid liylr
type managed
channel 11 (2462 MHz), width: 40 MHz, center1: 2452 MHz
3.启用无线卡(注:如果遇到突然上不了网可以先试试4和3;不行则先关闭网络然后再打开)
[root@localhost Oscar]# ip link set wlp2s0 up
4.查看无线网卡连接情况
[Oscar@localhost 桌面]$ iw wlp2s0 link
Not connected. (表示没有任何连接)
5.查看所有可用的无线网络信号
[root@localhost 桌面]# iw wlp2s0 scan | grep SSID
SSID: USER-20150101NS_Network_2
SSID: Tenda_17BEF8
SSID: PC-20140723DBVC_Network_1
SSID: 123
SSID: Tenda_0A6410
SSID: xiaohui
SSID: Tenda_51E4F0
SSID: Nobody Can
SSID: TP-LINK_3C479
SSID: FUCK YOU
SSID: Tenda_046260
SSID: Tenda_188E80
SSID: liylr
SSID: XIAORUAN
6.连接无线网
[root@localhost 桌面]# wpa_supplicant -B -i wlp2s0 -c <(wpa_passphrase "liylr" "useradmin")
Successfully initialized wpa_supplicant
注意:其中liylr为要连接到的wifi信号,useradmin为无线网络的密码,请读者替换即可。
7.分配IP地址(通过dhclient控制网卡进行网络操作获取IP)
[root@localhost 桌面]# dhclient wlp2s0
8.查看无线网卡地址信息,有ip地址表示网络连接成功了,可以上网冲浪咯
[root@localhost 桌面]# ip addr show wlp2s03: wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
link/ether a4:db:30:84:4b:1c brd ff:ff:ff:ff:ff:ff
inet 192.168.1.101/24 brd 192.168.1.255 scope global dynamic wlp2s0
valid_lft 7195sec preferred_lft 7195sec
inet6 fe80::a6db:30ff:fe84:4b1c/64 scope link
valid_lft forever preferred_lft forever