mySql-5.7,root用户忘记密码处理方式

发布时间:2020-08-08 04:07:46 作者:Benyod
来源:网络 阅读:1775

首先登录服务器:Linux

1.修改配置文件

vi /etc/my.cnf

在[mysqld]的段中加上一句

  skip-grant-tables 

2.保存重启 mysql

 service mysqld restart

3.修改root密码

mysql> use mysql
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed

mysql> update mysql.user set authentication_string=password('****') where user='root';
Query OK, 0 rows affected, 1 warning (0.00 sec)
Rows matched: 2  Changed: 0  Warnings: 1

mysql> exit

4.删除配置文件中的 skip-grant-tables

 步骤1 中,在配置文件中新增的部分,删除;

5.保存重启 mysql

 service mysqld restart

6.登录 mysql,设置登录权限

mysql -u root -p

Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 5
Server version: 5.7.15 MySQL Community Server (GPL)

Copyright (c) 2000, 2016, 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> GRANT ALL PRIVILEGES ON  *.* TO 'root'@'%' IDENTIFIED BY 'your root password' WITH GRANT OPTION;
Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
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mysql 修改密码

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