Linux操作系统下,MySQL忘记密码怎么办?


1.  确认服务器处于安全状态,因为数据库都很重要,在以下修改mysql的root账户的密码中,任意用户都能访问修改你的数据库,所以建议断网,在不联网的环境下修改。

2.  关闭MySQL,打开/etc/my.cnf,在[mysqld]的段中加上一句:skip-grant-tables,保存退出。

3. [...] # /etc/init.d/mysqld restart 
Stopping MySQL: [ OK ] 
Starting MySQL: [ OK ] 

4. [...] # /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.[...] # 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.[...] # /etc/init.d/mysqld restart 
Stopping MySQL: [ OK ] 
Starting MySQL: [ OK ]

搞定!!

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