CentOS7 Failed to start LSB: Bring up/down解决方法

[root@localhost ~]# 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 Thu 2018-10-11 20:37:34 PDT; 58s ago
     Docs: man:systemd-sysv-generator(8)
  Process: 3183 ExecStop=/etc/rc.d/init.d/network stop (code=exited, status=0/SUCCESS)
  Process: 3906 ExecStart=/etc/rc.d/init.d/network start (code=exited, status=1/FAILURE)

Oct 11 20:37:34 localhost.localdomain network[3906]: RTNETLINK answers: File exists
Oct 11 20:37:34 localhost.localdomain network[3906]: RTNETLINK answers: File exists
Oct 11 20:37:34 localhost.localdomain network[3906]: RTNETLINK answers: File exists
Oct 11 20:37:34 localhost.localdomain network[3906]: RTNETLINK answers: File exists
Oct 11 20:37:34 localhost.localdomain network[3906]: RTNETLINK answers: File exists
Oct 11 20:37:34 localhost.localdomain network[3906]: RTNETLINK answers: File exists
Oct 11 20:37:34 localhost.localdomain systemd[1]: network.service: control process exited, code=exited status=1
Oct 11 20:37:34 localhost.localdomain systemd[1]: Failed to start LSB: Bring up/down networking.
Oct 11 20:37:34 localhost.localdomain systemd[1]: Unit network.service entered failed state.
Oct 11 20:37:34 localhost.localdomain systemd[1]: network.service failed.
Unit use.service could not be found.

百度答案：

mac地址不对，修改mac地址。

也许有人确实是mac问题，但是莫名其妙怎么可能mac地址更改了，除非你添加新网卡或者克隆的虚拟机。

我特么真笑了，天下百度文章一大抄啊。。。。。。。。

没办法了，Google一下吧，偶然看到一个文章，大意是跟系统自带的NetworkManager这个管理套件有关系，关掉就可以解决。

 

试一下：

systemctl stop NetworkManager

systemctl disable NetworkManager

[root@localhost ~]# systemctl stop NetworkManager
[root@localhost ~]# 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.

网络正常启动，访问正常。