昨天配置好的虚拟机，今天打开一看，X-Shell发现里不上了，进到虚拟机界面 ip addr查看信息，结果如下图
在开机之后，发现网卡没有启动起来，进行了如下操作,还是不行
1、[root@es1 es]# ifup ens33
错误：激活连接失败：No suitable device found for this connection.
2、[root@es1 es]# systemctl start network
Job for failed because the control process exited with error code. See "systemctl status " and "journalctl -xe" for details
解决、先停止网卡，设置disable，然后启动，发现网卡启动了
[root@es1 es]# systemctl stop NetworkManager
[root@es1 es]# systemctl disable NetworkManager
Removed symlink /etc/systemd/system//.
Removed symlink /etc/systemd/system/.
Removed symlink /etc/systemd/system/.
[root@es1 es]# service network restart
至此，问题解决
