刚刚装了centos6.5要用yum安装东西结果发现yum不能解析域名
具错误体如下：
Loaded plugins: fastestmirror, refresh-packagekit, security Loading mirror speeds from cached hostfile Could not retrieve mirrorlist https://mirrorlist.centos.org/?release=6&arch=x86_64&repo=os&infra=$infra error was 14: PYCURL ERROR 6 - "Couldn't resolve host 'mirrorlist.centos.org'" Error: Cannot find a valid baseurl for repo: base Loaded
