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使用ssh连接虚拟机服务时，连接异常，虚拟机系统centos 7，于是登录虚拟机，查看服务ip，发现配置的静态ip未生效。因此重启网卡systemctl restart network，出现报错，使用systemctl status network查看报错的详细信息，异常信息如下：

● network.service - LSB: Bring up/down networkingLoaded: loaded (/etc/rc.d/init.d/network; bad; vendor preset: disabled)Active: failed (Result: exit-code) since Mon 2025-06-23 02:54:56 PDT; 11s agoDocs: man:systemd-sysv-generator(8)Process: 5802 ExecStart=/etc/rc.d/init.d/network start (code=exited, status=1/FAILURE)Jun 23 02:54:56 localhost.localdomain network[5802]: RTNETLINK answers: File exists
Jun 23 02:54:56 localhost.localdomain network[5802]: RTNETLINK answers: File exists
Jun 23 02:54:56 localhost.localdomain network[5802]: RTNETLINK answers: File exists
Jun 23 02:54:56 localhost.localdomain network[5802]: RTNETLINK answers: File exists
Jun 23 02:54:56 localhost.localdomain network[5802]: RTNETLINK answers: File exists
Jun 23 02:54:56 localhost.localdomain network[5802]: RTNETLINK answers: File exists
Jun 23 02:54:56 localhost.localdomain systemd[1]: network.service: control process exited, code=exited status=1
Jun 23 02:54:56 localhost.localdomain systemd[1]: Failed to start LSB: Bring up/down networking.
Jun 23 02:54:56 localhost.localdomain systemd[1]: Unit network.service entered failed state.
Jun 23 02:54:56 localhost.localdomain systemd[1]: network.service failed.
[root@localhost network-scripts]# systemctl restart network
Job for network.service failed because the control process exited with error code. See "systemctl status network.service" and "journalctl -xe" for details.

报错图片：

解决方法
1.停止和禁用NetworkManager

sudo systemctl stop NetworkManager
sudo systemctl disable NetworkManager
systemctl restart network

2.相关大数据学习demo地址:
https://github.com/carteryh/big-data