• Linux之Centos7开机之后连不上网


     

    • 问题:ns33mtu 1500 qdisc noop state DOWN group default qlen 1000

    • 解决方法:

     1 root@topcheer ~]# systemctl stop NetworkManager
     2 [root@topcheer ~]# systemctl disable NetworkManager
     3 Removed symlink /etc/systemd/system/multi-user.target.wants/NetworkManager.service.
     4 Removed symlink /etc/systemd/system/dbus-org.freedesktop.NetworkManager.service.
     5 Removed symlink /etc/systemd/system/dbus-org.freedesktop.nm-dispatcher.service.
     6 Removed symlink /etc/systemd/system/network-online.target.wants/NetworkManager-wait-online.service.
     7 [root@topcheer ~]# service network restart
     8 Restarting network (via systemctl):                        [  确定  ]
     9 [root@topcheer ~]# ifconfig
    10 docker0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
    11         inet 172.17.0.1  netmask 255.255.0.0  broadcast 0.0.0.0
    12         ether 02:42:3b:db:cd:21  txqueuelen 0  (Ethernet)
    13         RX packets 0  bytes 0 (0.0 B)
    14         RX errors 0  dropped 0  overruns 0  frame 0
    15         TX packets 0  bytes 0 (0.0 B)
    16         TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
    17 18 ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
    19         inet 192.168.180.113  netmask 255.255.255.0  broadcast 192.168.180.255
    20         inet6 fe80::20c:29ff:fe4d:6737  prefixlen 64  scopeid 0x20<link>
    21         ether 00:0c:29:4d:67:37  txqueuelen 1000  (Ethernet)
    22         RX packets 10  bytes 1168 (1.1 KiB)
    23         RX errors 0  dropped 0  overruns 0  frame 0
    24         TX packets 28  bytes 4696 (4.5 KiB)
    25         TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
    26 27 lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
    28         inet 127.0.0.1  netmask 255.0.0.0
    29         inet6 ::1  prefixlen 128  scopeid 0x10<host>
    30         loop  txqueuelen 1000  (Local Loopback)
    31         RX packets 68  bytes 5604 (5.4 KiB)
    32         RX errors 0  dropped 0  overruns 0  frame 0
    33         TX packets 68  bytes 5604 (5.4 KiB)
    34         TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
    35 36 virbr0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
    37         inet 192.168.122.1  netmask 255.255.255.0  broadcast 192.168.122.255
    38         ether 52:54:00:27:04:0d  txqueuelen 1000  (Ethernet)
    39         RX packets 0  bytes 0 (0.0 B)
    40         RX errors 0  dropped 0  overruns 0  frame 0
    41         TX packets 0  bytes 0 (0.0 B)
    42         TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
    43 44 [root@topcheer ~]# 

     

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  • 原文地址:https://www.cnblogs.com/dalianpai/p/11735092.html
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