CentOS 8中无法上网问题解决-无法正常显示ens33中ip地址_error: reading applied connection from device 'eth

ifconfig 查询 无法显示ens33的中 网卡ip地址

ing: www.baidu.com: Name or service not known
[hadoop100@localhost ~]$ ifconfig
lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 48  bytes 2400 (2.3 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 48  bytes 2400 (2.3 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

virbr0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 192.168.122.1  netmask 255.255.255.0  broadcast 192.168.122.255
        ether 52:54:00:ef:a6:7d  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
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解决办法：

# 查看托管状态
nmcli n
# 出现disabled则代表是遇到的问题，否则代表不是
# 开启托管
nmcli n on
# 重启托管
systemctl restart NetworkManager
# 再次查看，即可正常显示出ens33
ifconfig
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