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MySQL 对普通用户(没有super)开启审计功能

WBOY
Release: 2016-06-07 16:44:34
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最近有发现有坏蛋delete 了数据,找不到是哪个user 哪个host,发现mysql 是可以对没有super 权限的用户开启审计功能,oracle早就

最近有发现有坏蛋delete 了数据,找不到是哪个user 哪个host,发现mysql 是可以对没有super 权限的用户开启审计功能,Oracle早就实现了,只需要打开参数即可。

1.在my.cnf [mysqld]组下加入

init-connect='insert intoaduit.accesslog(id,time,localname,matchname)values(connection_id(),now(),user(),current_user()); 

#create database accesslog;

CREATE TABLE aduit.accesslog (`id` int(11) primary keyauto_increment, `time` timestamp, `localname` varchar(30), `matchname`varchar(30))engine=innodb;

2.被审计的用户需要有insert aduit.accesslog 权限

grant insert on aduit.accesslog to hhl@'172.17.62.%' identified by'xxx';

3.只能审计普通用户没有super权限的用户的DDL,DML,还用开启binlog 分析。

 

[root@wy ~]# mysql -upxy -p -P3306 -h 10.45.247.81

Enter password:

Welcome to the MySQL monitor. Commands end with ; or \g.

mysql> insert into test.t10 values(10);

Query OK, 1 row affected (0.00 sec)

#上面client 连接Processid = 11

mysql> select * from aduit.accesslog;

+----+---------------------+---------------------+-----------+

| id | time                |localname          | matchname |

+----+---------------------+---------------------+-----------+

|  3 | 2014-09-24 17:16:06 |admin@10.45.247.160 | admin@%  |

| 10 | 2014-09-24 17:26:18 | pxy@10.45.247.160  | pxy@%    |

| 11 | 2014-09-24 17:28:13 |pxy@10.45.247.160  | pxy@%    |

+----+---------------------+---------------------+-----------+

Processid = 11

mysql> show processlist;

+----+-----------------+---------------------+------+---------+------+------------------------+------------------+

| Id | User           | Host                | db  | Command | Time | State                  | Info            |

+----+-----------------+---------------------+------+---------+------+------------------------+------------------+

|  2 | root            | localhost          | NULL | Query  |    0| NULL                  | showprocesslist |

| 11 | pxy            | 10.45.247.160:53086 | NULL |Sleep  |  26 |                        | NULL            |

+----+-----------------+---------------------+------+---------+------+------------------------+------------------+

看到了id=11的吧,就是aduit.accesslog 表的id列。

通过解析 binlog

[root@localhost binlog]# mysqlbinlog --base64-output=decode-rows -v-v mysql-bin.000030 |grep  -nthread_id=11

22:#140924 17:28:13 server id 114 end_log_pos 282  Query  thread_id=11    exec_time=0 error_code=0

24:SET @@session.pseudo_thread_id=11/*!*/;

42:#140924 17:32:21 server id 114 end_log_pos 491  Query  thread_id=11    exec_time=0 error_code=0

定位到模糊的行位置,再找到binlog中Processid = 11 的操作。

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