linux 连接Wifi

安装无线设备操作命令

yum install -y iw

查看 wlp9s0网卡的激活状态

尖括号<>内没有‘’UP‘’字样就表示未激活

[root@localhost script]# ip link show wlp3s0
4: wlp3s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000
 link/ether 00:22:fb:16:bd:ee brd ff:ff:ff:ff:ff:ff

ip link show wlp3s0

激活 wlp3s0网卡

ip link set wlp3s0 up

停用 wlp3s0 网卡

ip link set wlp3s0 down

搜索附近可用的无线网络

iw wlp3s0 scan | grep SSID

如果存在可用的无线网络，红色的SSID之后便是wifi名称

例如：SSID: MERCURY_5G_271E

wpa_supplicant -B -i wlp3s0 -c<(wpa_passphrase "MERCURY_5G_271E" "无线密码")

为此网卡分配ip地址

dhclient wlp3s0

少等片刻即可继续，可以看到获取到了ip

wlp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.104  netmask 255.255.255.0  broadcast 192.168.0.255
        inet6 fe80::222:fbff:fe16:bdee  prefixlen 64  scopeid 0x20<link>
        ether 00:22:fb:16:bd:ee  txqueuelen 1000  (Ethernet)
        RX packets 105  bytes 14315 (13.9 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 54  bytes 12029 (11.7 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

打赏