三步搞定忘记MySQL数据库密码【显哥出品，必为精品】

简单粗暴修改MySQL密码，只要三步

1.修改my.cnf文件（在mysqld下面增加三条参数）

[root@master ~]# vim /etc/my.cnf
[mysqld]
...
...
skip-host-cache
skip-name-resolve
skip-grant-tables

2.重启mysqld服务，并输入mysql直接进入数据库修改密码

[root@master ~]# systemctl restart mysql
[root@master ~]# mysql
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.7.18-log MySQL Community Server (GPL)
#修改密码
mysql> update mysql.user set authentication_string=password('123456') where user='root';
#刷新权限
mysql> flush privileges;
mysql> quit

3.删除三条参数，重启mysql搞定

[root@master ~]# vim /etc/my.cnf
[root@master ~]# systemctl restart mysql
[root@master ~]# mysql -uroot -p123456
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.7.18-log MySQL Community Server (GPL)

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