解决 centos 7 eans33 网络

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查看IP地址 :ifconfig 输出的 ens33:看不到 inet *** netmask 255.255.255.0

ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 00:0c:29:20:a6:26  txqueuelen 1000  (Ethernet)
        RX packets 7  bytes 1618 (1.5 KiB)
        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 56  bytes 4912 (4.7 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 56  bytes 4912 (4.7 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 52:54:00:3e:43:07  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

解决方法
修改文件 ifcfg-ens33 将 ONBOOT=no 设置为yes

vim /etc/sysconfig/network-scripts/ifcfg-ens33

TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=dhcp
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens33
UUID=01543e96-8b02-4f52-a2fb-f848a4ad9273
DEVICE=ens33
ONBOOT=yes

修改完成后依次执行命令

ifconfig ens33 up
systemctl stop NetworkManager
ifup ens33
systemctl restart network.service

最后在查看ifconfig,在到windows ping 一下 ip

ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.3.75  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::20c:29ff:fe20:a626  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:20:a6:26  txqueuelen 1000  (Ethernet)
        RX packets 24  bytes 4682 (4.5 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 52  bytes 8166 (7.9 KiB)
        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 56  bytes 4912 (4.7 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 56  bytes 4912 (4.7 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 52:54:00:3e:43:07  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