vmware ubuntu 异常关机无法连接到网络

step1: 查看所有的网卡

ifconfig -a

可以看到ens33 这个不work了

stdpain@ubuntu:~$ ifconfig -a
ens33: flags=4098<BROADCAST,MULTICAST>  mtu 1500
        ether 00:0c:29:45:7a:69  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

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 720  bytes 52068 (52.0 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 720  bytes 52068 (52.0 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

重置网卡:

sudo service network-manager stop 
sudo rm /var/lib/NetworkManager/NetworkManager.state 
sudo service network-manager start

执行 ifconfig -a

stdpain@ubuntu:~$ ifconfig -a
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.240.129  netmask 255.255.255.0  broadcast 192.168.240.255
        inet6 fe80::927f:a7ea:7e75:5d00  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:45:7a:69  txqueuelen 1000  (Ethernet)
        RX packets 19  bytes 2761 (2.7 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 44  bytes 5357 (5.3 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

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 746  bytes 54188 (54.1 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 746  bytes 54188 (54.1 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0