欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  数据库

在MySQL中使用init-connect与binlog来实现用户操作追踪记录

程序员文章站 2022-05-07 15:48:43
...

测试环境莫名其妙有几条重要数据被删除了,由于在binlog里面只看到是公用账号删除的,无法查询是那个谁在那个时间段登录的,就考

前言:
测试环境莫名其妙有几条重要数据被删除了,由于在binlog里面只看到是公用账号删除的,无法查询是那个谁在那个时间段登录的,就考虑怎么记录每一个MYSQL账号的登录信息,在MYSQL中,每个连接都会先执行init-connect,进行连接的初始化,我们可以在这里获取用户的登录名称和thread的ID值。然后配合binlog,,就可以追踪到每个操作语句的操作时间,操作人等。实现审计。

MySQL数据恢复--binlog

MySQL中binlog日记清理

如何安全删除MySQL下的binlog日志

MySQL--binlog日志恢复数据

MySQL删除binlog日志及日志恢复数据的方法

MySQL binlog三种格式介绍及分析

MySQL 利用binlog增量备份+还原实例

MySQL删除binlog日志及日志恢复数据

1,在mysql服务器db中建立单独的记录访问信息的库
set names utf8;
create databaseaccess_log;
CREATE TABLE`access_log`
(
`id`int(11) NOT NULL AUTO_INCREMENT,
`thread_id` int(11) DEFAULT NULL, -- 线程ID,这个值很重要
`log_time`timestamp NOT NULL DEF AULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, -- 登录时间
`localname` varchar(30) DEFAULT NULL, -- 登录名称
`matchname` varchar(30) DEFAULT NULL, -- 登录用户
PRIMARYKEY (`id`)
) ENGINE=InnoDBAUTO_INCREMENT=1 DEFAULT CHARSET=utf8 comment '录入用户登录信息';



2,在配置文件中配置init-connect参数。登录时插入日志表。如果这个参数是个错误的SQL语句,登录就会失败。
vim/usr/local/mysql/my.cnf
init-connect='INSERTINTO access_log.access_logVALUES(NULL,CONNECTION_ID(),NOW(),USER(),CURRENT_USER());'
然后重启数据库

3,创建普通用户,不能有super权限,而且用户必须有对access_log库的access_log表的insert权限,否则会登录失败。
给登录用户赋予insert权限,但是不赋予access_log的insert、select权限,
GRANTINSERT,DELETE,UPDATE,SELECT ON test.* TO audit_user@'%' IDENTIFIED BY'cacti_user1603';
mysql> GRANTCREATE,DROP,ALTER,INSERT,DELETE,UPDATE,SELECT ON test.* TO audit_user@'%'IDENTIFIED BY 'cacti_user1603';
Query OK, 0 rowsaffected (0.00 sec)
mysql> exit
然后去用新的audit_user登录操作
[root@db_server~]# /usr/local/mysql/bin/mysql -uaudit_user -p -S/usr/local/mysql/mysql.sock
Enter password:
Welcome to theMySQL monitor. Commands end with ; or \g.
Your MySQL connectionid is 25
Server version:5.6.12-log

Copyright (c)2000, 2013, Oracle and/or its affiliates. All rights reserved.

Oracle is aregistered trademark of Oracle Corporation and/or its
affiliates. Othernames may be trademarks of their respective
owners.

Type 'help;' or'\h' for help. Type '\c' to clear the current input statement.

mysql> lect *from access_log.access_log;
ERROR 2006(HY000): MySQL server has gone away
No connection.Trying to reconnect...
Connection id: 26
Current database:*** NONE ***


ERROR 1184(08S01): Aborted connection 26 to db: 'unconnected' user: 'audit_user' host:'localhost' (init_connect command failed)
mysql>
看到报错信息 (init_connect command failed),再去错误日志error log验证一下:
tail -fn 5/usr/local/mysql/mysqld.log
2014-07-28 16:03:3123743 [Warning] Aborted connection 25 to db: 'unconnected' user: 'audit_user'host: 'localhost' (init_connect command failed)
2014-07-2816:03:31 23743 [Warning] INSERT command denied to user ''@'localhost' for table'access_log'
2014-07-2816:04:04 23743 [Warning] Aborted connection 26 to db: 'unconnected' user:'audit_user' host: 'localhost' (init_connect command failed)
2014-07-2816:04:04 23743 [Warning] INSERT command denied to user ''@'localhost' for table'access_log'
看到必须要有对access_log库的access_log表的insert权限才行。


4,赋予用户access_log的insert、select权限,然后重新赋予权限:
GRANTSELECT,INSERT ON access_log.* TO audit_user@'%';
mysql>
mysql> GRANTSELECT,INSERT ON access_log.* TO audit_user@'%';
Query OK, 0 rowsaffected (0.00 sec)

mysql> exit
Bye

再登录,报错如下:
[root@db_server~]# /usr/local/mysql/bin/mysql -uaudit_user -p -S/usr/local/mysql/mysql.sock
Enter password:
ERROR 1045(28000): Access denied for user 'audit_user'@'localhost' (using password: YES)
[root@db_server~]#

去查看error日志:
2014-07-2816:15:29 23743 [Warning] INSERT command denied to user ''@'localhost' for table'access_log'
2014-07-2816:15:41 23743 [Warning] Aborted connection 37 to db: 'unconnected' user:'audit_user' host: 'localhost' (init_connect command failed)
2014-07-2816:15:41 23743 [Warning] INSERT command denied to user ''@'localhost' for table'access_log'
2014-07-2816:15:50 23743 [Warning] Aborted connection 38 to db: 'unconnected' user:'audit_user' host: 'localhost' (init_connect command failed)
2014-07-2816:15:50 23743 [Warning] INSERT command denied to user ''@'localhost' for table'access_log'

更多详情见请继续阅读下一页的精彩内容:

在MySQL中使用init-connect与binlog来实现用户操作追踪记录