【win10】win 10 电脑喇叭音频显示红叉的处理方法

大舌头�: 安装你的方法了 依然 [root@localhost ~]# yum install dhcp 已加载插件：fastestmirror, langpacks Repository base is listed more than once in the configuration Repository updates is listed more than once in the configuration Repository extras is listed more than once in the configuration Repository centosplus is listed more than once in the configuration Loading mirror speeds from cached hostfile Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock error was 12: Timeout on http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock: (28, 'Resolving timed out after 30555 milliseconds') One of the configured repositories failed (未知), and yum doesn't have enough cached data to continue. At this point the only safe thing yum can do is fail. There are a few ways to work "fix" this: 1. Contact the upstream for the repository and get them to fix the problem. 2. Reconfigure the baseurl/etc. for the repository, to point to a working

2401_82859223: 谢谢大佬，写的真的很不错，给初入linux莫大帮助

顾三殇: 你可以直接用命令上传文件，xftp主要是为了方便查看文件方便操作的，你既然可以访问服务器，就直接用命令上传文件即可：【linux 文件上传下载的几种方式 - 远洪 - 博客园】https://www.cnblogs.com/liyuanhong/articles/17740912.html

顾三殇: 【在Linux中查找 IP 地址的3种方法_linux shell_脚本之家】https://m.jb51.net/jiaoben/297266kpr.htm

达不溜ww: 啊 我使用ip a就查看到了，刚开始不知道可以这样