linux下mysql的root密码忘记解决方

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 ]

Work for fun,Live for love!

 

posted @ 2017-11-15 19:27  墨飞_Max  阅读(291)  评论(0编辑  收藏  举报