linux下mysql的root密码忘记解决方法
验证环境:
[root@localhost ~]# rpm -qa | grep mysql
mysql-5.1.71-1.el6.i686mysql-server-5.1.71-1.el6.i686mysql-libs-5.1.71-1.el6.i686 [root@localhost ~]# lsb_release -aLSB Version: :core-4.0-ia32:core-4.0-noarch:graphics-4.0-ia32:graphics-4.0-noarch:printing-4.0-ia32:printing-4.0-noarchDistributor ID: CentOSDescription: CentOS Linux release 6.0 (Final)Release: 6.0Codename: Final [root@localhost ~]# uname -r2.6.32-71.el6.i686
1.首先确认服务器出于安全的状态,也就是没有人能够任意地连接MySQL数据库。
因为在重新设置MySQL的root密码的期间,MySQL数据库完全出于没有密码保护的 状态下,其他的用户也可以任意地登录和修改MySQL的信息。可以采用将MySQL对 外的端口封闭,并且停止Apache以及所有的用户进程的方法实现服务器的准安全 状态。最安全的状态是到服务器的Console上面操作,并且拔掉网线。 2.修改MySQL的登录设置: # vi /etc/my.cnf 在[mysqld]的段中加上一句:skip-grant-tables例如: [mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock skip-grant-tables 保存并且退出vi。 3.重新启动mysqld # /etc/init.d/mysqld restart Stopping MySQL: [ OK ] Starting MySQL: [ OK ] 4.登录并修改MySQL的root密码[root@localhost ~]# mysql
Welcome to the MySQL monitor. Commands end with ; or \\g.Your MySQL connection id is 3Server version: 5.1.71 Source distributionCopyright (c) 2000, 2013, 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 respectiveowners.Type 'help;' or '\\h' for help. Type '\\c' to clear the current input statement.
mysql>UPDATE mysql.user SET Password = password ("new-password") WHERE User = 'root';
Query OK, 3 rows affected (0.00 sec)
Rows matched: 3 Changed: 3 Warnings: 0mysql> exit
Bye 5.将MySQL的登录设置修改回来 # vi /etc/my.cnf将刚才在[mysqld]的段中加上的skip-grant-tables删除,保存并且退出vi;
6.再次重新启动mysqld # /etc/init.d/mysqld restart Stopping MySQL: [ OK ] Starting MySQL: [ OK ] 7、使用新的密码登录,正常登录,搞定!
参考网上资料: