Error: Cannot find a valid baseurl for repo: base when using yum command

First of all, the network configuration of my host machine is as follows:

Therefore, when I configure linux dns, I also configure 192.168.0.1. It is no problem to access the external network, but there are errors when using the yum command.
Change the priority of 192.168.0.1 and 8.8.8.8. Initially, DNS1=192.168.0.1. This configuration is mainly to be consistent with the dns of the host. Save and exit, service network restartrestart the network configuration, and try the yum command again.