一、破解mysql数据库密码步骤
1、修改mysql配置文件/etc/my.cnf
[mysqld] port = 3306 socket = /tmp/mysql.sock skip-external-locking key_buffer_size = 256M max_allowed_packet = 1M table_open_cache = 256 sort_buffer_size = 1M read_buffer_size = 1M read_rnd_buffer_size = 4M myisam_sort_buffer_size = 64M thread_cache_size = 8 query_cache_size= 16M # Try number of CPU's*2 for thread_concurrency thread_concurrency = 2 datadir = /mydata/data skip-grant-tables #加入此项
2、重新启动mysqld
# /etc/init.d/mysqld restart Stopping MySQL: [ OK ] Starting MySQL: [ OK ]
3.登录并修改MySQL的root密码
# /usr/bin/mysql Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 3 to server version: 3.23.56 Type 'help;' or '\h' for help. Type '\c' to clear the buffer. 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 ( 'new-password' ) WHERE User = 'root' ; Query OK, 0 rows affected (0.00 sec) Rows matched: 2 Changed: 0 Warnings: 0 mysql> flush privileges ; Query OK, 0 rows affected (0.01 sec) mysql> quit 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．重新启动mysqld
# /etc/init.d/mysqld restart Stopping MySQL: [ OK ] Starting MySQL: [ OK ]
图示：
修改如下：
重设密码：
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