VMware Centos虚拟机 ifconfig 网卡查看不到解决方法(Active: failed (Result: exit-code) since)

1. 查看状态  systemctl  status network.service 内容如下

　　● 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 五 2017-07-14 19:01:47 CST; 1min 16s ago
　　Docs: man:systemd-sysv-generator(8)
　　Process: 4681 ExecStart=/etc/rc.d/init.d/network start (code=exited, status=1/FAILURE)
　　CGroup: /system.slice/network.service
　　└─1192 /sbin/dhclient -H mini1 -1 -q -lf /var/lib/dhclient/dhclient--ens33.lease -pf /v...
　　7月 14 19:01:47 mini1 network[4681]: RTNETLINK answers: File exists
　　7月 14 19:01:47 mini1 network[4681]: RTNETLINK answers: File exists
　　7月 14 19:01:47 mini1 network[4681]: RTNETLINK answers: File exists
　　7月 14 19:01:47 mini1 network[4681]: RTNETLINK answers: File exists
　　7月 14 19:01:47 mini1 network[4681]: RTNETLINK answers: File exists
　　7月 14 19:01:47 mini1 network[4681]: RTNETLINK answers: File exists
　　7月 14 19:01:47 mini1 systemd[1]: network.service: control process exited, code=exited status=1
　　7月 14 19:01:47 mini1 systemd[1]: Failed to start LSB: Bring up/down networking.
　　7月 14 19:01:47 mini1 systemd[1]: Unit network.service entered failed state.

2. 和 NetworkManager 服务有冲突。

　　解决办法如下：

　　1）执行  systemctl stop NetworkManager 　// 关闭NetworkManager

　　2）执行 systemctl disable NetworkManager.service　　// 关闭开机启动NetworkManager

　　3）执行 reboot 　// 重启系统就可以了。