多网卡NET模式下centos7虚拟机不显示ens33网卡_contos7 ess3

解决办法
移除NetworkManager

systemctl stop NetworkManager
systemctl disable NetworkManager
service network restart
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如果你要启动network manager，启动过后，运行service network restart，会出现错：

service network restart
Restarting network (via systemctl): Job for network.service failed because the control process exited with error code. See “systemctl status network.service” and “journalctl -xe” for details.

（和networkmanager冲突）

关闭 service NetworkManager stop，再 service network restart，就正常了。

禁止开机启动 chkconfig NetworkManager off 。之后重启就好了。

查了一下network和networkmanager是会冲突的，我一直以为以前是并存的，所以如果重启了service network restart 要注意下这个冲突的问题，禁用networkmanager。