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CentOS系统重置MySQL数据库密码

时间:2021-07-01 10:21:17 帮助过:23人阅读

学习CentOS Linux的时候经常会忘记各种密码,本文主要说明在使用CentOS的过程中,忘记MySQL数据库密码的解决办法。 第一步:通过如下代码,停止MySQL服务器的运行 01 02 [root@CentOs5 ~]# service mysqld stop Stopping MySQL: [ OK ] 第二步:使用 “–ski

学习CentOS Linux的时候经常会忘记各种密码,本文主要说明在使用CentOS的过程中,忘记MySQL数据库密码的解决办法。
第一步:通过如下代码,停止MySQL服务器的运行

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[root@CentOs5 ~]# service mysqld stop

Stopping MySQL: [ OK ]

第二步:使用 “–skip-grant-tables”参数重新启动mysql

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[root@CentOs5 ~]# mysqld_safe --skip-grant-tables &

[1] 23810

[root@CentOs5 ~]# Starting mysqld daemon with databases from /var/lib/mysql

第三步:用帐号登录MySQL

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[root@CentOs5 ~]# 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 distribution

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

第四步:改变用户数据库表

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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

第五步:修改密码,记得密码要用password()函数进行加密,一定不要忘记!不然,

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mysql> update user set password=password('admin123') where user='root';

Query OK, 1 row affected (0.04 sec)

Rows matched: 1 Changed: 1 Warnings: 0

第六步:刷新权限表

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mysql> flush previleges;

ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'previleges' at line 1

mysql> flush privileges;

Query OK, 0 rows affected (0.00 sec)

第七步:退出mysql

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mysql> quit

Bye

第八步:对mysql进行重启

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[root@CentOs5 ~]# service mysqld restart;

STOPPING server from pid file /var/run/mysqld/mysqld.pid

100421 13:44:03 mysqld ended

Stopping MySQL: [ OK ]

Starting MySQL: [ OK ]

[1]+ Done mysqld_safe --skip-grant-tables

第九步:用更改过的密码重新登录即可。

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[root@CentOs5 ~]# mysql -u root -p

Enter password: admin123

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 2

Server version: 5.0.77 Source distribution

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

mysql> quit

Bye

[root@CentOs5 ~]#


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