问题背景：家里VMware上一台centos7机器网卡起不来，检查网卡配置文件/etc/sysconfig/network-scripts/ifcfg-ens33没问题
尝试使用systemctl service network restart和systemctl restart network均是报错: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.

最终排查是NetworkManager服务有冲突。直接停用+禁用

service NetworkManager stop 关闭NetworkManager服务

chkconfig NetworkManager off 禁止开机启动

service network restart 重启网络

最终ping 接口IP通了。