虚拟机centos DNS配置
yum命令 错误：Could not resolve host: centos.ustc.edu.cn;
https://blog.csdn.net/jasonhector/article/details/78657532
虚拟机桥接网卡
https://blog.csdn.net/rcjjian/article/details/79879275
Centos下 Nginx安装与配置
https://www.cnblogs.com/zhanghaoyong/p/7737536.html