先给大家介绍windows下mysql忘记密码的解决方案。 Windows下的实际操作如下 1.关闭正在运行的MySQL。 2.打开DOS窗口,转到mysql/bin目录。 3.输入mysqld --skip-grant-tables回车。如果没有出现提示信息,那就对了。 4.再开一个DOS窗口(因为刚才那个DOS窗口已经不能动了),转到mysql/bin目录。 5.输入mysql回车,如果成功,将出现MySQL提示符 > 6. 连接权限数据库>use mysql; (>是本来就有的提示符,别忘了最后的分号) 6.改密码:> update user set password=password("520") where user="root"; (别忘了最后的分号) 7.刷新权限(必须的步骤)>flush privileges; 8.退出 > /q 9.注销系统,再进入,开MySQL,使用用户名root和刚才设置的新密码123456登陆。 第一步 C:/Documents and Settings/Administrator>cd D:/web/www.php100.com/Mysql/MySQL Se rver5.5/bin C:/Documents and Settings/Administrator>d: D:/web/www.php100.com/Mysql/MySQL Server5.5/bin>mysqld --skip-grant-tables 第二步 Microsoft Windows [版本 5.2.3790] (C) 版权所有 1985-2003 Microsoft Corp. C:/Documents and Settings/Administrator>cd D:/web/www.php100.com/Mysql/MySQL Se rver5.5/bin C:/Documents and Settings/Administrator>d: D:/web/www.php100.com/Mysql/MySQL Server5.5/bin>mysql Welcome to the MySQL monitor. Commands end with ; or /g. Your MySQL connection id is 1 Server version: 5.5.10 MySQL Community Server (GPL) Copyright (c) 2000, 2010, 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> use mysql; Database changed mysql> update user set password=password("520") where user="root"; Query OK, 1 row affected (0.00 sec) Rows matched: 1 Changed: 1 Warnings: 0 mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) mysql> /q Bye D:/web/www.php100.com/Mysql/MySQL Server5.5/bin> 下面给大家介绍linux下mysql的root密码忘记解决方案 1.首先确认服务器出于安全的状态,也就是没有人能够任意地连接MySQL数据库。
因为在重新设置MySQL的root密码的期间,MySQL数据库完全出于没有密码保护的状态下,其他的用户也可以任意地登录和修改MySQL的信息。可以采用将MySQL对外的端口封闭,并且停止Apache以及所有的用户进程的方法实现服务器的准安全状态。最安全的状态是到服务器的Console上面操作,并且拔掉网线。
2.修改MySQL的登录设置:
# vi /etc/my.cnf
在[mysqld]的段中加上一句:skip-grant-tables
例如:
[mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock skip-grant-tables
保存并且退出vi。
3.重新启动mysqld # /etc/init.d/mysqld restart Stopping MySQL: [ OK ] Starting MySQL: [ OK ]
4.登录并修改MySQL的root密码
# /usr/bin/mysql Welcome to the MySQL monitor. Commands end with ; or /g. Your MySQL connection id is 3 to server version: 3.23.56 Type 'help;' or '/h' for help. Type '/c' to clear the buffer. 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 user SET Password = password ( 'new-password' ) WHERE User = 'root' ; Query OK, 0 rows affected (0.00 sec) Rows matched: 2 Changed: 0 Warnings: 0 mysql> flush privileges ; Query OK, 0 rows affected (0.01 sec) mysql> quit Bye
5.将MySQL的登录设置修改回来
# vi /etc/my.cnf 将刚才在[mysqld]的段中加上的skip-grant-tables删除 保存并且退出vi。
6.重新启动mysqld
# /etc/init.d/mysqld restart Stopping MySQL: [ OK ] Starting MySQL: [ OK ] |