linux 重置mysql 密码

Posted 2020-09-22 orangeGame

1.打开 

/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 

...

 

2.重启mysql

# /etc/init.d/mysqld restart 

Stopping MySQL: [ OK ] 

Starting MySQL: [ OK ] 

 

3．登录并修改MySQL的root密码 

输入  /usr/bin/mysql 

 

出现：

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. 

 

输入 USE mysql ; 

出现：

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 

 

输入： 

UPDATE user SET Password = password ( ‘123456‘ ) WHERE User = ‘root‘ ;           这里修改密码为 123456；

 

出现：

Query OK, 0 rows affected (0.00 sec) 

Rows matched: 2 Changed: 0 Warnings: 0 

 

输入：flush privileges ; 

Query OK, 0 rows affected (0.01 sec) 

 

输入： quit 

Bye 

 

4．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。 

 

5．重新启动mysqld 

# /etc/init.d/mysqld restart 

Stopping MySQL: [ OK ] 

Starting MySQL: [ OK ]