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Event Log for Computer added to domain

By peter_maryan ·

Logged into our AD server this morning to find out that someone at some point added a computer named "dumbass" to our domain.

Where in the log files would this information be kept, as to who autorized it and from what IP it was added.


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by BFilmFan In reply to Event Log for Computer ad ...

The record of who added the system to the domain would be on the domain controller they authenticated against. This event may or may not be in the security log depending on what you are or are not auditing.

So did you take a default install of Active Directory or did you configure auditing? You will be lookin for an Event ID 645 for computer account creation, 646 for a change and 647 for a deletion.

You can learn more about configuring auditing here:

Unless you have locked the network down, Authenticated Users can add up to 10 computers to a network. You can lock that down by following the steps in this article:

Microsoft has security guidance published for both Windows 2000 and Windows 2003 server:

Windows 2000:

Windows 2003:

Windows XP:

National Security Agency (aka Spooks R' Us) Note that this one covers several OSes:

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