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实验环境:VMware Workstation 15.5
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MySQL版本:mysql-boost-5.7.20
下载地址:https://wwa.lanzous.com/iPjpafrq01e
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实验步骤:
1、如果MySQL服务正在运行,则需要先停止服务
systemctl stop mysqld
2、编辑MySQL配置文件
vim /etc/my.cnf
在[mysqld]中增加一行:
skip-grant-tables
systemctl start mysqld
4、使用命令直接登录数据库(无需密码)
[root@localhost ~]# mysql -uroot -p ## 登录数据库
Enter password: ## 这里密码为空,直接回车
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.7.20-log Source distribution
Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> ## 已经登录成功了
5、登录进数据库中后下一步就是重置root密码
update mysql.user set authentication_string=password('123123') where user='root'; ##重置root用户密码为123123
6、将配置文件中添加的 “skip-grant-tables” 这一行删去,开启数据库服务
systemctl start mysqld
使用重新修改后的密码123123就可以登录数据库了