[root@centos8 ~]# service network  status
Redirecting to /bin/systemctl status network.service
Unit network.service could not be found.

[root@centos8 ~]# systemctl status network.service
Unit network.service could not be found.

[root@centos8 ~]# systemctl status network
Unit network.service could not be found.

[root@centos8 ~]# systemctl restart network
Failed to restart network.service: Unit network.service not found.

装上centos8后，配置好静态ip，想重启网络发现，之前centos7上的命令都不好使了

报错如上边那样

一查资料发现是由于 centos8 已经替换了原来的network, 新版的叫：NetworkManager

这个工具可了不得，好用的一批，尤其是wifi相关的,

所以用这个命令就可以重启了 systemctl restart NetworkManager

[root@centos8 ~]# systemctl status  NetworkManager
● NetworkManager.service - Network Manager
   Loaded: loaded (/usr/lib/systemd/system/NetworkManager.service; enabled; vendor preset: enabled)
   Active: active (running) since Tue 2019-10-15 22:20:43 CST; 9min ago
     Docs: man:NetworkManager(8)
 Main PID: 7299 (NetworkManager)
    Tasks: 3 (limit: 11357)
   Memory: 6.8M
   CGroup: /system.slice/NetworkManager.service
           └─7299 /usr/sbin/NetworkManager --no-daemon