Enable audit in oracle

本文详细介绍Oracle数据库中审计功能的配置与管理方法,包括如何设置审计跟踪、启用系统操作审计,以及如何创建和禁用特定的审计选项。此外,还介绍了如何查看审计记录和维护审计表空间。

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Check audit settting

select name,value from v$parameter where name like 'audit%'
show parameter audit;

Change setting of audit_trail

Method 1

<pre> alter system set audit_trail=DB,Extended scope=spfile (cannot set both as Change Static Parameters Through the SPFILE) alter system set audit_sys_operations=true scope=spfile </pre>

Method 2

  • add config in $ORACLE_HOME/dbs/init*.ora as below since db starting with pfile, error 'specified initialization parameter can not be modified'
  • audit_trail=DB ( oracle9i not support 'Extended' in init*.ora file)
  • audit_sys_operations=true

Restart db

<pre> shutdown immediate; startup; </pre>

Check audit option in db

select * from dba_stmt_audit_opts
OR
select * from dba_priv_audit_opts

Make some audit option

<pre> AUDIT ALTER TABLE; AUDIT DELETE ANY TABLE; AUDIT DROP ANY TABLE; AUDIT AUDIT ANY; AUDIT AUDIT SYSTEM; AUDIT ALL BY FRED BY ACCESS; audit select table, update table, delete table, insert table, execute procedure by FRED by access; AUDIT SELECT, INSERT, DELETE ON jward.dept BY ACCESS WHENEVER SUCCESSFUL; AUDIT SELECT TABLE, INSERT TABLE, DELETE TABLE, EXECUTE PROCEDURE BY ACCESS WHENEVER NOT SUCCESSFUL; AUDIT SELECT, UPDATE, DELETE ON SYS.AUD$ BY ACCESS; -------- disable them NOAUDIT ALTER TABLE; ... </pre>

List audit record

<pre> select * from dba_audit_session order by timestamp desc select * from dba_audit_trail order by timestamp desc select * from dba_audit_object order by timestamp desc; select * from dba_audit_statement order by timestamp desc; </pre>

House keep sys.aud$ to reduce its size

truncate sys.aud$ or delete sys.aud$

Trace user's behavior

show parameter dump

  • Find background_dump_dest/alert_sid.log
  • This file would give you some info about user's behavior in user_dump_dest/sid_ora_pid.trc

Example

A user Fred was missing someday in db, how to find out the reason. Follow these step

  • check alert.log
  • check sid_ora_pid.trc
  • check dba_audit_session and dba_audit_trail

Get the user's role and privilege

  • USER_SYS_PRIVS, USER_TAB_PRIVS, USER_ROLE_PRIVS
  • DBA_SYS_PRIVS, DBA_TAB_PRIVS, DBA_ROLE_PRIVS

select * from DBA_role_privs

Misc

xming + putty + X11 forwarding

run $ORACLE_HOME/bin/dbca

Reference

Oracle audit command tips
Introduction to Simple Oracle Auditing
Configuring and Administering Auditing
Auditing Database Activity
Auditing Database Use
Verifying Security Access with Auditing
Starting Up a Database
Spfile and Init.ora Parameter File Startup of an Oracle9i Instance
Change Static Parameters Through the SPFILE

Oracle Audit 审计
Oracle_9i_AUDIT_SOP

Managing User Privileges and Roles

转载于:https://my.oschina.net/l1z2g9/blog/203054

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