Centos7.4 的yum源库配置。

http://mirrors.163.com/.help/centos.html

https://www.cnblogs.com/mchina/archive/2013/01/04/2842275.html

https://dev.mysql.com/doc/refman/5.7/en/validate-password.html

https://www.jianshu.com/p/b913dbb16e57

https://itbilu.com/database/mysql/VJqKWnT1f.html