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mysql密码破解： 1，直接跳密码认证，先进到mysql里面具体操作：
在/etc/my.cnf的配置文件里 【mysqld】下添加下面一行 skip-grant-table —可以跳过密码认证[root@localhost mysql]# cat /etc/my.cnf[mysqld_safe][client]socket=/data/mysql/mysql.sock[mysqld]socket=/data/mysql/mysql.sockport = 3306open_files_limit = 8192innodb_buffer_pool_size = 512Mcharacter-set-server=utf8skip-grant-tables[mysql]auto-rehashprompt=\\u@\\d \\R:\\m mysql>
然后重启mysql服务
[root@localhost mysql]# service mysqld restart Shutting down MySQL.. SUCCESS! Starting MySQL.. SUCCESS! [root@localhost mysql]# mysql -uroot -pEnter password: Welcome to the MySQL monitor. Commands end with ; or \g.Your MySQL connection id is 2Server version: 5.7.30 MySQL Community Server (GPL)Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
2，flush privileges; 先刷新权限(会加载原来没有加载的权限表)
root@(none) 17:28 mysql>flush privileges;Query OK, 0 rows affected (0.00 sec)
3，重置密码
root@(none) 17:29 mysql>set password for root@localhost='Sanchuang1234#';Query OK, 0 rows affected (0.00 sec)
4，退出数据库
root@(none) 17:30 mysql>quitBye
5，将配置文件里添加的那一行注释掉
[root@localhost mysql]# cat /etc/my.cnf[mysqld_safe][client]socket=/data/mysql/mysql.sock[mysqld]socket=/data/mysql/mysql.sockport = 3306open_files_limit = 8192innodb_buffer_pool_size = 512Mcharacter-set-server=utf8#skip-grant-tables[mysql]auto-rehashprompt=\\u@\\d \\R:\\m mysql>
6，再重启服务
[root@localhost mysql]# service mysqld restart Shutting down MySQL.. SUCCESS! Starting MySQL. SUCCESS!
7，使用新密码登录
[root@localhost mysql]# mysql -uroot -p'Sanchuang1234#'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 2Server version: 5.7.30 MySQL Community Server (GPL)Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
查看字符集
root@(none) 17:30 mysql>show variables like '%char%';+--------------------------+----------------------------------+| Variable_name | Value |+--------------------------+----------------------------------+| character_set_client | utf8 || character_set_connection | utf8 || character_set_database | utf8 || character_set_filesystem | binary || character_set_results | utf8 || character_set_server | utf8 || character_set_system | utf8 || character_sets_dir | /usr/local/mysql/share/charsets/ |+--------------------------+----------------------------------+8 rows in set (0.01 sec)
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