安装epel源出现错误报码:14: curl#6 - “Could not resolve host: mirrorlist.centos.org; 未知的错误“
出现报错[root@server1~]#yuminstall-yepel-release已加载插件:fastestmirror,langpacksCouldnotretrievemirrorlisthttp://mirrorlist.centos.org/?release=7&arch=x86_64&repo=updates&infra=stockerrorwas14:curl#6-"Couldn