mysql 忘记密码

1.结束mysql 服务

service mysqld stop

#或 /etc/init.id/mysqld stop

2. 使用 “--skip-grant-tables”参数从新启动mysql

[root@NetDakVPS ~]# mysqld_safe --skip-grant-tables &
[1] 23810
Starting mysqld daemon with databases from /var/lib/mysql

3.用root账号登陆mysql

[root@NetDakVPS ~]# mysql -u root
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 1
Server version: 5.0.77 Source distributionType 'help;' or 'h' for help. Type 'c' to clear the buffer.

4：改变用户数据库

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 -ADatabase changed 

5：修改密码，记得密码要用password()函数进行加密

mysql> update user set password=password('netdak') where user='root';
Query OK, 1 row affected (0.04 sec)
Rows matched: 1 Changed: 1 Warnings: 0 

六：刷新权限表

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec) 

七：退出mysql

mysql> quit

八：对mysql进行重启

[root@NetDakVPS ~]# service mysqld restart;
STOPPING server from pid file /var/run/mysqld/mysqld.pid
100421 13:44:03 mysqld endedStopping MySQL: [ OK ]
Starting MySQL: [ OK ]
[1]+ Done mysqld_safe --skip-grant-tables 

九：用更改过的密码从新登陆便可。

[root@NetDakVPS ~]# mysql -u root -p
Enter password: netdak
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 2
Server version: 5.0.77 Source distributionType 'help;' or 'h' for help. Type 'c' to clear the buffer.mysql> quit
Bye