MAC Users on Domain identified as "Unknown" Users


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L4 Transporter

MAC Users on Domain identified as "Unknown" Users

Hello Guys.

Before I describe the issue; just want to let you all know that I am no Apple Geek and have very very limited knowledge of Apple products (don't know why but was never fascinated).  Right, the issue is as follows:

My client has installed Snow Leopard the latest version of OS in-order to have the integration with Windows Domain Controllers.  The first issue was that MAC users when logging onto the devices using domain credentials were being challenged by Captive Portal.  This issue was sorted by obviously setting no captive portal rule for the domain users.

After resolving the above issue, the users are not being challenged by CP but are now being identified as "unknown" users.  Now, how can I go around troubleshooting this issue?

1.  First thing I would think of is; Are the logon Account names matching on how they were defined on the domain controller / groups?

2.  When the MAC users login / authenticate using the domain credentials the security logs should be similiar to the logs when users authenticate using Windows machines.  Is this happening?

3.  If the above two steps are working perfectly fine, then what should I look into?

Any ideas or suggestions will be very much appreciated.

Look forward to hearing from you guys..!!!

Many Thanks,



L4 Transporter

There's really no difference in troubleshooting authentication problems between Mac OS X and Windows. The computer needs to be joined/bound to the Active Directory domain, and the user needs a valid user account.

You can validate sucessful domain authentication in OS X using Ticket Viewer.

Past that, you need to make sure you have successful and failure authentication auditing enabled on your default domain controller policy.

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