centos8 Cannot prepare internal mirrorlist: No URLs in mirrorlist

累积了一个春节假期的CentOS未更新，所以今天执行了一下更新操作。然后报错了Failed to download metadata for repo 'AppStream': Cannot prepare internal mirrorlist: No URLs in mirrorlist瞬间懵逼

重启服务器后Nginx端口占用的解决

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CentOS8提示Failed to set locale, defaulting to C.UTF-8

在CentOS 8中执行yum update，出现报错：Failed to set locale, defaulting to C.UTF-8报错原因：没有设置正确的语言环境。