linux 连接无线网

1.切换到超级用户

[root@study ~]# su root

2.查询可用的无线网卡，其中Interface 后接的为网卡号

[root@study ~]# iw dev

phy#0

Interface wlo1

ifindex 23

wdev 0x1

addr xx:xx:xx:xx:xx:xx

type managed

3.启用无线卡

[root@study ~]# ip link set wlo1 up

4.查看无线网卡连接情况

[root@study ~]# iw wlo1 link

Not connected.    （表示没有任何连接）

(以下连接成功)

Connected to 2e:f0:a2:c7:2a:aa (on wlo1)

SSID:CMCC-Tj22

freq: 24372

RX: 35615 bytes (263 packets)

TX: 1159 bytes (11 packets)

signal: -45 dBm

tx bitrate: 65.0 MBit/s MCS 7

bss flags: short-slot-time

dtim period: 1

beacon int: 100

5.查看所有可用的无线网络信号

[root@study ~]# iw wls1 scan | grep SSID

SSID: TP-LINK_F5BC

SSID:CMCC-Tj22

SSID: Chinanet-UUUU

SSID: Chinanet-sM2j

SSID: 504

SSID: CMCC-9G32

SSID: clarence

SSID: Tenda_0B6E78

6.连接无线网

[root@study ~]# wpa_supplicant -B -i wlo1 -c <(wpa_passphrase "CMCC-Tj22" "123456")

Successfully initialized wpa_supplicant

注意：其中CMCC-Tj22为要连接到的wifi信号SSID，123456为无线网络的密码,请替换掉

7.分配IP地址（通过dhclient控制网卡进行网络操作获取IP）

[root@study ~]# dhclient wlo1

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@centos-servce ~]# ip addr show wlo1

2: wlo1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000

    link/ether 11:11:11:11:11:11 brd ff:ff:ff:ff:ff:ff

    inet 192.168.1.9/24 brd 192.168.1.1 scope global dynamic wlo1

      valid_lft 86386sec preferred_lft 86386sec

    inet6 fe80::5eac:c4ff:fec6:e194/64 scope link

      valid_lft forever preferred_lft forever

7

备注:修改文件后可以采用以下命令行打开无线网

wpa_supplicant -i wlo1 -c /etc/wpa_supplicant/wpa_supplicant.conf

dhcpcd wlo1