有关linux中出现systemctl status network.service“ and “journalctl -xe“ for details.

Posted 2022-11-29 抛物线.

##有关linux中，Job for network.service failed because the control process exited with error code。 ##

>**[root@mina0 hadoop]# 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.

##针对上面报错

[root@mina0 hadoop]# journalctl -xe
10月 26 17:15:57 mina0 network[3308]: 正在打开环回接口： [  确定  ]
10月 26 17:15:57 mina0 NetworkManager[679]: <info>  [1509009357.3386] audit: op="connec
10月 26 17:15:57 mina0 network[3308]: 正在打开接口 ens33： 错误：激活连接失败：No suita
10月 26 17:15:57 mina0 network[3308]: [失败]
10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists
10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists
10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists
10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists
10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists
10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists
10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists
10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists
10月 26 17:15:57 mina0 network[3308]: RTNETLINK answers: File exists
10月 26 17:15:57 mina0 polkitd[680]: Unregistered Authentication Agent for unix-process
10月 26 17:15:57 mina0 systemd[1]: network.service: control process exited, code=exited
10月 26 17:15:57 mina0 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 26 17:15:57 mina0 systemd[1]: Unit network.service entered failed state.
10月 26 17:15:57 mina0 systemd[1]: network.service failed.

解决办法：

第一种：有人是mac地址的问题

更改了物理网卡或者增加了新设备，或者是克隆时没有完全链接克隆，那么只需要在网络配置文件中加上
HWADDR=XXXXXX 就行了，但是 往往都不能有效结果该问题
通过观察
那么最粗暴直接的办法就是第三种：

第二种：有人是直接VMware下面的连接断开了 或者说没有设置启动自动连接

那么第三种就是观察日志发现有个 NetworkManager的网络服务组件，对他进行以下操作就可以了

[root@mina0 hadoop]# systemctl stop NetworkManager
[root@mina0 hadoop]# systemctl disable NetworkManager

然后：重启网卡：

[root@mina0 hadoop]# systemctl restart network
[root@mina0 hadoop]# ifconfig

然后就能解决了。