系统运维
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linux下重启网卡使用命令 ： service network restart 时报错：
[root@slave01 hadoop]# service network restart Starting 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. [失败] [root@slave01 hadoop]# journalctl -xe 10月 09 17:39:20 slave01 network[12763]: 正在打开环回接口： [ 确定 ] 10月 09 17:39:20 slave01 NetworkManager[730]: <info> [1539077960.4630] audit: op="conn 10月 09 17:39:20 slave01 network[12763]: 正在打开接口 ens33： 错误：激活连接失败：No su 10月 09 17:39:20 slave01 network[12763]: [失败] 10月 09 17:39:20 slave01 network[12763]: RTNETLINK answers: File exists 10月 09 17:39:20 slave01 network[12763]: RTNETLINK answers: File exists 10月 09 17:39:20 slave01 network[12763]: RTNETLINK answers: File exists 10月 09 17:39:20 slave01 network[12763]: RTNETLINK answers: File exists 10月 09 17:39:20 slave01 network[12763]: RTNETLINK answers: File exists 10月 09 17:39:20 slave01 network[12763]: RTNETLINK answers: File exists 10月 09 17:39:20 slave01 network[12763]: RTNETLINK answers: File exists 10月 09 17:39:20 slave01 network[12763]: RTNETLINK answers: File exists 10月 09 17:39:20 slave01 network[12763]: RTNETLINK answers: File exists 10月 09 17:39:20 slave01 systemd[1]: network.service: control process exited, code=exit 10月 09 17:39:20 slave01 systemd[1]: Failed to start LSB: Bring up/down networking. -- Subject: Unit network.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit network.service has failed. -- -- The result is failed. 10月 09 17:39:20 slave01 systemd[1]: Unit network.service entered failed state. 10月 09 17:39:20 slave01 systemd[1]: network.service failed. 10月 09 17:39:20 slave01 polkitd[725]: Unregistered Authentication Agent for unix-proce
解决如下
执行如下命令： stop NetworkManager systemctl disable NetworkManager 然后：重启网卡： systemctl restart network
