The solution for the Ubuntu virtual machine cannot connect to the network and the network icon in the upper right corner is missing

2022-10-15 29 words One minute views

Contents

排查网卡问题

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ip a

只有一个127.0.0.1的网卡

1、删除 NetworkManager 缓存文件

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service NetworkManager stop
rm /var/lib/NetworkManager/NetworkManager.state
service NetworkManager start

2、修改/etc/NetworkManager/NetworkManager.conf

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managed=true

3、重启 NetworkManager

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service NetworkManager restart