Domain Controllers Auditing Best Practices

Consider monitoring / backup the security event id in domain controller. if you monitor all event id then you can't provide storage for storing events.

Change auditor having limitation and it store the audit details in SQL database. I guess limited days of audit details can be stored. 

I would recommend to use Quest Intrust for gathering and storing the event ids.

Thank you very much... we are already using the Quest Intrust to send the DC event logs to our SIEM.... I was mostly looking for locations in the file system to audit on DCs.