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在linux平台下使用mysql过程中忘记了root密码,对于运维和DBA来讲都是一件头疼的事情,下面来讲解下怎么进行重置mysql数据库root 密码:
1、首先停止mysql服务进程:
service mysqld stop
然后编辑mysql的配置文件my.cnf
vim /etc/my.cnf
找到 [mysqld]这个模块:
在最后面添加一段代码
skip-grant-tables ##忽略mysql权限问题,直接登录
然后保存 :wq!退出
启动mysql服务:
service mysqld start
直接进入mysql数据库:
Starting MySQL. SUCCESS!
[iyunv@web1 ~]# mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection>
Server version: 5.6.34 Source distribution
Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
使用mysql表,然后进行修改mysql的root密码:
mysql> use mysql; ##使用mysql数据库
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("123456") where user="root";##更新密码
Query OK, 4 rows affected (0.00 sec)
Rows matched: 4 Changed: 4 Warnings: 0
mysql> flush privileges;##刷新权限
Query OK, 0 rows affected (0.00 sec)
[iyunv@web1 ~]# ps -ef |grep mysql ##显示mysql现有的进程
root 56407 1 0 17:50 pts/0 00:00:00 /bin/sh /usr/local/mysql/bin/mysqld_safe --datadir=/data/mysql --pid-file=/data/mysql/web1.pid
mysql 56533 56407 0 17:50 pts/0 00:00:00 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/data/mysql --plugin-dir=/usr/local/mysql/lib/plugin --user=mysql --log-error=/data/mysql/web1.err --pid-file=/data/mysql/web1.pid
root 56560 1737 0 17:55 pts/0 00:00:00 grep mysql
[iyunv@web1 ~]# killall mysqld ##删除mysql现有进程
[iyunv@web1 ~]# ps -ef |grep mysql
root 56566 1737 0 17:56 pts/0 00:00:00 grep mysql
[iyunv@web1 ~]# service mysqld start ##重新启动mysql服务
Starting MySQL. SUCCESS!
[iyunv@web1 ~]# mysql -uroot -p ##使用新密码登录
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection>
Server version: 5.6.34 Source distribution
Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
注意:先把mysql服务进程关闭,把添加过的跳过验证信息删除,要不然对数据库安全威胁太大, |
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