centOS 7一个解决“network.service: control process exited, code=exited status=1”方法

　　今天早上2017-08-04，我打开虚拟机，使用远程工具xshell对虚拟机进行连接，我发现连接不上去，然后我ifconfig，发现找不到ens33了，就剩一个本地回环，看来是我的网络出现了问题，然后我查看我的网络状态，发现了如下情况：

[root@CT71 ~]# systemctl status network.service
● network.service - LSB: Bring up/down networking
   Loaded: loaded (/etc/rc.d/init.d/network; bad; vendor preset: disabled)
   Active: failed (Result: exit-code) since Fri -- :: CST; 1min 44s ago
     Docs: man:systemd-sysv-generator()
  Process:  ExecStop=/etc/rc.d/init.d/network stop (code=exited, status=/SUCCESS)
  Process:  ExecStart=/etc/rc.d/init.d/network start (code=exited, status=1/FAILURE)

Aug  :: CT71 network[]: RTNETLINK answers: File exists
Aug  :: CT71 network[]: RTNETLINK answers: File exists
Aug  :: CT71 network[]: RTNETLINK answers: File exists
Aug  :: CT71 network[]: RTNETLINK answers: File exists
Aug  :: CT71 network[]: RTNETLINK answers: File exists
Aug  :: CT71 network[]: RTNETLINK answers: File exists
Aug  :: CT71 systemd[]: network.service: control process exited, code=exited status=
Aug  :: CT71 systemd[]: Failed to start LSB: Bring up/down networking.
Aug  :: CT71 systemd[]: Unit network.service entered failed state.
Aug  :: CT71 systemd[]: network.service failed.

我在某度上找了好几个答案，都没有找到我能解决问题的答案，然后我进行Google，在一个博客上找到了我需要的答案，不知道是不是会针对于大家都可以，方法是关闭网络管理，如下：

systemctl stop NetworkManager

我在执行上面一步后就已经解决了问题，那个博客给出的答案还有下面的步骤，我没有用：

systemctl disable NetworkManager

    Removed symlink /etc/systemd/system/multi-user.target.wants/NetworkManager.service.
    Removed symlink /etc/systemd/system/dbus-org.freedesktop.NetworkManager.service.
    Removed symlink /etc/systemd/system/dbus-org.freedesktop.nm-dispatcher.service.

然后重启网络：

systemctl start network.service

可以使用了：

[root@CT71 bin]# ifconfig
ens33: flags=<UP,BROADCAST,RUNNING,MULTICAST>  mtu
        inet 172.17.251.180  netmask 255.255.0.0  broadcast 172.17.255.255
        inet6 fe80::20c:29ff:fe84:b4  prefixlen   scopeid 0x20<link>
        ether :0c::::b4  txqueuelen   (Ethernet)
        RX packets   bytes  (300.9 MiB)
        RX errors   dropped   overruns   frame
        TX packets   bytes  (288.9 KiB)
        TX errors   dropped  overruns   carrier   collisions 

ens34: flags=<UP,BROADCAST,RUNNING,MULTICAST>  mtu
        inet 192.168.111.110  netmask 255.255.255.0  broadcast 192.168.111.255
        inet6 fe80::febf:b561::f3b0  prefixlen   scopeid 0x20<link>
        ether :0c::::be  txqueuelen   (Ethernet)
        RX packets   bytes  (11.3 MiB)
        RX errors   dropped   overruns   frame
        TX packets   bytes  (19.1 MiB)
        TX errors   dropped  overruns   carrier   collisions 

lo: flags=<UP,LOOPBACK,RUNNING>  mtu
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::  prefixlen   scopeid 0x10<host>
        loop  txqueuelen   (Local Loopback)
        RX packets   bytes  (6.5 KiB)
        RX errors   dropped   overruns   frame
        TX packets   bytes  (6.5 KiB)
        TX errors   dropped  overruns   carrier   collisions 

virbr0: flags=<UP,BROADCAST,MULTICAST>  mtu
        inet 192.168.122.1  netmask 255.255.255.0  broadcast 192.168.122.255
        ether :::b6::  txqueuelen   (Ethernet)
        RX packets   bytes  (0.0 B)
        RX errors   dropped   overruns   frame
        TX packets   bytes  (0.0 B)
        TX errors   dropped  overruns   carrier   collisions