配置网络http://jingyan.baidu.com/article/359911f57ca21357fe0306d8.html
安装图形界面：
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$sudo yum groupinstall "GNOME Desktop" "Graphical Administration Tools"
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http://www.centoscn.com/image-text/config/2015/0528/5552.html
原文：http://www.cnblogs.com/kaysily/p/5196680.html