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2003 Domain Controller log offs.

Posted on 2014-09-25
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Last Modified: 2014-09-30
In my Event Viewer for Security I have 40,000+ log offs (event ID 538) yet only 6 logons. Why the disparity?
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Question by:xmouser
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by:Dan McFadden
ID: 40345534
Have you enabled auditing of privilege use?  An excessive number of 538 could be an indication of the policy being turned on.

I suggest checking out the configuration of the Security Auditing policy.  Using Group Policy Manager go to:

1. Computer Configuration > Windows Settings > Security > Local > Audit
2. verify what is enabled
3. if privilege use auditing is enabled, disabled it

You can also do this locally by using  the Local Security Policy admin tool.  Go to:

1. Local Policies > Audit Policy
2. verify what is enabled
3. disable auditing objects as desired.

Dan
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by:xmouser
ID: 40345858
Not seeing where I can specifically turn this off - not sure I should. But why so many log offs 40,000+ in comparison to 6 logons for the same week?
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by:Dan McFadden
ID: 40346034
There could be many reasons.  What is installed on this server?

See thread for a description of a similar situation:  http://social.technet.microsoft.com/Forums/windowsserver/en-US/5b4ce879-ed35-432f-8d60-30cfbbc6b62f/2003-sp2-dc-filling-up-with-event-id-538-540-and-576?forum=winserversecurity

Dan
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by:xmouser
ID: 40346143
2003 Domain Controller.
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Dan McFadden earned 500 total points
ID: 40346166
Nothing else? No Exchange, SharePoint, etc...

If not, then you could disable the "Audit privilege use" policy on the DC.  This should reduce the 538s.

Unless you have some need to have had this option enabled, I suggest turning it off.

Reference link:  http://technet.microsoft.com/en-us/library/cc784501(v=ws.10).aspx

Dan
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by:xmouser
ID: 40346296
I'll check.
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