本文档详细介绍破解 MySQL5.7 数据库的 root 登录密码
忘记 root 登录密码
[root@MySQL1 ~]# mysql -uroot -p1231234
mysql: [Warning] Using a password on the command line interface can be insecure.
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
在 /etc/my.cnf 配置文件中添加 skip-grant-tables 绕开 MySQL5.7 数据库密码验证
[root@MySQL1 ~]# echo skip-grant-tables >> /etc/my.cnf
[root@MySQL1 ~]# /etc/init.d/mysqld restart
Shutting down MySQL.. SUCCESS!
Starting MySQL. SUCCESS!
直接使用 mysql 命令登录 MySQL5.7 数据库并修改 root 登录密码
[root@MySQL1 ~]# mysql
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 3
Server version: 5.7.19-log Source distribution
Copyright (c) 2000, 2017, 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> ALTER USER 'root'@'localhost' IDENTIFIED BY 'password';
ERROR 1290 (HY000): The MySQL server is running with the --skip-grant-tables option so it cannot execute this statement
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'password';
Query OK, 0 rows affected (0.00 sec)
mysql> quit
Bye
注意：如果在执行该步骤的时候出现 ERROR 1290 (HY000): The MySQL server is running with the --skip-grant-tables option so it cannot execute this statement 错误。则执行下 flush privileges; 命令，再执行该命令即可。
使用新密码 password 登录 MySQL5.7 数据库
[root@MySQL1 ~]# mysql -uroot -ppassword
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 4
Server version: 5.7.19-log Source distribution
Copyright (c) 2000, 2017, 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> exit
Bye
使用其他密码不能登录 MySQL5.7 数据库
[root@MySQL1 ~]# mysql -uroot -ppasswordd
mysql: [Warning] Using a password on the command line interface can be insecure.
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
优化
删掉 /etc/my.cnf 里的 skip-grant-tables
[root@MySQL1 ~]# sed -i -e '/skip-grant-tables/d' /etc/my.cnf
重启数据库
[root@MySQL1 ~]# /etc/init.d/mysqld restart
总结
以上就是破解 MySQL5.7 数据库的 root 登录密码的方法，希望能给大家带来帮助。