“Could not resolve host: mirrorlist.centos.org; 未知的错误“

Couldnotretrievemirrorlisthttp://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stockerro...

linux:14: curl#6 - “Could not resolve host: mirrorlist.centos.org; 未知的错误“

yum报错_14:curl#6-\"couldnotresolvehost:mirrorlist.centos.org;未知的错误...