163源帮助:
http://mirrors.163.com/.help/centos.html
:http://mirrors.163.com/.help/ubuntu.html搜狐源帮助:
http://mirrors.sohu.com/help/centos.html
:http://mirrors.sohu.com/help/ubuntu.html科大源帮助:
https://lug.ustc.edu.cn/wiki/mirrors/help/centos
:https://lug.ustc.edu.cn/wiki/mirrors/help/ubuntu 原文链接：https://www.f2er.com/bash/389997.html