虚拟机上实现mysql的主从数据库

https://www.cnblogs.com/dail1990/p/10143582.html
https://blog.csdn.net/weixin_42734930/article/details/81743047
alter user user() identified by "root";
参照链接二最后修改为可以远程
https://www.cnblogs.com/zichuan/p/9203129.html
hosts
uuid->usr/local/mysql/data/auto.cnf