centos7重启网络服务命令
重新启动网络：
systemctl start network.service
或者
service network restart
查看网络状态
systemctl status network.service
暂未找到好的办法
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.
[FAILED]
