Hi guys,

Your topic could not have come at a better time. In the last few days, a few users in the domain have been complaining about their accounts being locked out every morning. At first I thought, someone had been snooping within the network. Since our company uses first name.last name as usernames, it is not that hard to lock someone out after 5 unsuccessful tries. What I did not know is that these new users had relocated from another location. A system admin added their wk stations to our domain. Also drives were mapped to another server, located in different domain in order to get an application to work. Now that you guys mention how persistent drives could be the culprit, I am wondering if same passwords in two separate domains would solve this problem.

Can someone confirm my idea or give a better answer?

 

 

  

George Arezina

BA, A+, Net+, MCSE 2000

Information Technology Consultant

National Bank of Serbia

Pop Lukina 7-9, 11000 Belgrade.

* E-mail: [EMAIL PROTECTED]

( Phone:+381 (11) 3202-474

( GSM:  +381 (63)  342-321

 

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Coleman, Hunter
Sent: Wednesday, October 08, 2003 9:58 PM
To: '[EMAIL PROTECTED]'
Subject: RE: [ActiveDir] account lockout troubleshooting

 

I've seen this, as Mike said, with persistent drives mapped. Also with scheduled tasks using an old password.

 

Hunter

 


From: Creamer, Mark [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 08, 2003 1:30 PM
To: [EMAIL PROTECTED]
Subject: RE: [ActiveDir] account lockout troubleshooting

Yep, one is the PDCE. That would explain the same event at the same time on 2 DCs. But here's the strange thing. The users log on successfully. They work with no problem for a while with apps running like Outlook (to Exchange 2000), IE, open Office files on a file server, etc. Suddenly they can't work anymore - again, just as if someone else was locking out the account. But the events are coming from the user's own PC only.

 

<mc>

-----Original Message-----
From: Coleman, Hunter [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 08, 2003 3:17 PM
To: '[EMAIL PROTECTED]'
Subject: RE: [ActiveDir] account lockout troubleshooting

 

Is one of the DCs your PDC emulator? Normally, if a user attempts to authenticate to a DC with an incorrect password (error code 3221225578), that DC will redirect the authentication to the PDC emulator for an "authoratative" response. This covers the case where a user's password has changed but not fully replicated to all DCs. The PDC emulator would know about the change, so checking there would validate the login attempt or reject it if appropriate.

 

Hunter

 


From: Creamer, Mark [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 08, 2003 12:03 PM
To: [EMAIL PROTECTED]
Subject: [ActiveDir] account lockout troubleshooting

Hi folks,

I have been trying to troubleshoot some lockout events. In every case, the event originates on the user's own workstation (not some other user). There are no associated file object failures on the primary file server. It seems like it is application-based, but I can't nail it down. I've been using Microsoft's AL tools, including EventCombMT, but I can't use the acctinfo.dll because the clients are Win9x.

 

Today I noticed for the first time that on 2 DCs, the exact same 5 login failures occurred (one example follows):

 

681,AUDIT FAILURE,Security,Tue Oct 07 13:13:38 2003,NT AUTHORITY\SYSTEM,The logon to account: MYUSER    by: MICROSOFT_AUTHENTICATION_PACKAGE_V1_0    from workstation: \\HIS_PC    failed. The error code was: 3221225578   

 

I was concerned that I didn't think it is normal that 2 DCs would log the same 5 logon failures at exactly the same times. What do you think?

 

Thanks,

 

Mark Creamer
Systems Engineer
Cintas Corporation
http://www.cintas.com
Honesty and Integrity in Everything We Do

 

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