chkconfig network off
chkconfig network on
systemctl stop NetworkManager
systemctl start NetworkManager
输入systemctl start network后报错信息"
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
禁掉系统自带的NetworkManager服务就可解决
systemctl stop NetworkManager # 停止NetworkManager服务
systemctl disable NetworkManager # 设置开机不启动
systemctl start network # 启动网络服务
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