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MySQL登录错误解决方法

2013年07月17日 CentOS, Linux, 测试工具, 软件测试 ⁄ 共 1413字 ⁄ 字号 暂无评论 ⁄ 阅读 1,271 次

本文主要介绍mysql登录错误或忘记本地root用户密码的解决方法。

 

一、mysql登录错误

 

mysqladmin: connect to server at 'localhost' failed

error: 'Access denied for user 'root'@'localhost' (using password: YES)'

 

解决办法:破解mysql密码

 


>service mysqld stop

>mysqld_safe --skip-grant-tables &

输入 mysql -uroot -p 回车进入

>use mysql;

> update user set password=PASSWORD("newpass")where user="root"; #更改密码为 newpass

> flush privileges; #更新权限

> quit #退出

>service mysqld restart

>mysql -uroot -pnewpass #新密码进入

二,忘记本地root的登录密码

 

解决过程:

1、编辑/etc/my.cnf

在[mysqld] 配置部分添加一行

skip-grant-tables

 

2、保存后重启mysql

[root@localhost etc]# service mysqld restart

Shutting down MySQL. [ OK ]

Starting MySQL. [ OK ]

 

3、登录数据库重新设置root密码

[[email protected] ~]# mysql -uroot -p mysql

Enter password:

 

直接回车进入

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 1

Server version: 5.1.47-log Source distribution

Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.

This software comes with ABSOLUTELY NO WARRANTY. This is free software,

and you are welcome to modify and redistribute it under the GPL v2 license

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> show databases;

+--------------------+

| Database |

+--------------------+

| information_schema |

| mysql |

| test |

+--------------------+

3 rows in set (0.00 sec)

 

执行下列语句

mysql> update user set password=password("mysql") where user='root';

Query OK, 4 rows affected (0.00 sec)

Rows matched: 4 Changed: 4 Warnings: 0

mysql> flush privileges;

Query OK, 0 rows affected (0.00 sec)

 

4、删除/etc/my.cnf文件中添加的“skip-grant-tables”行,重启mysql;

用新设的密码就能正常登录了;