1、登陸到服務器端
2、service mysql stop
3、mysqld --skip-grant-tables
4、重置密碼
[root@testdb1 ~]# mysql -u root -p
Enter password:
Welcome to the MySQL monitor.? Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.5.25 MySQL Community Server (GPL)

Copyright (c) 2000, 2011, 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> 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
mysql> update user set password=password('xxxxxxxx') where user='root';
Query OK, 4 rows affected (0.09 sec)
Rows matched: 4? Changed: 4? Warnings: 0

mysql> exit
5、kill -TERM pid (pid 為mysqld的進程id)
6、service mysql start

轉載于:https://www.cnblogs.com/4admin2root/archive/2012/08/11/2633391.html

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