問題描述：
安裝centos的yum安裝xwindows界面，出現以上的錯誤提示：
Host name lookup failure
.serverauth.** does not exist
Before reporting problems, check ..... to make sure that you have the latest version.
解決方案：
yum update
yum groupinstall "X Window System"
yum groupinstall "Desktop"
最近重裝centos7 系統 如果上面的方法還是不行
用了
yum groupinstall "GNOME Desktop" "Graphical Administration Tools"
成功了