详细说明mysql在Centos下更改密码的方法

1．修改MySQL的登录设置：

# vim /etc/my.cnf

加上一句：skip-grant-tables

如：

[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock

2．重启mysql

# service mysqld restart
Stopping MySQL: [ OK ]
Starting MySQL: [ OK ]

3．修改密码

mysql> USE mysql ;
Database changed
mysql> UPDATE user SET Password = password ( '新密码' ) 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

4．修改刚刚改过的配置文件

# vim /etc/my.cnf

5.重启mysql

# service mysqld restart
Stopping MySQL: [ OK ]
Starting MySQL: [ OK ]

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