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mysql root密码的重设方法(亲测可用)_MySQL

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Release: 2016-05-27 14:12:04
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bitsCN.com 注意!#号后面是需要操作的地方。

1.前提注意事项

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方法如下
#/etc/init.d/mysqld restart
StoppingMySQL: [ OK ]
Starting MySQL: [ OK ]

其他重启的操作方法

service mysqld [start/stop/reboot] 进行操作

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 oftable and column names
You can turn off this feature to get aquicker startup with -A
Database changed
mysql>UPDATE user SET Password = password ( 'new-password' ) WHERE User ='root' ;
Query OK, 0 rows affected (0.00 sec)
Rowsmatched: 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
StoppingMySQL: [ OK ]
Starting MySQL: [ OK ]

root密码重设成功!bitsCN.com

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