【linux】解决centos8 wget 报错nown. wget: unable to resolve host address ‘mirrors.aliyun.com’

1.概述

因为某些原因，我想在机器上装机nginx，然后发现Yum坏了，我就想重装yum

[root@zdh2 ~]# yum install nginx
Invalid configuration value: failovermethod=priority in /etc/yum.repos.d/CentOS