http://www.windowsecurity.com/articles/Implementing-Troubleshooting-Account-Lockout.html
plus you can look at Best practices guide for account lockout.
http://www.microsoft.com/downloads/details.aspx?FamilyID=8c8e0d90-a13b-4977-a4fc-3e2b67e3748e&DisplayLang=en
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Kamlesh
On 11/15/05, Sudhir Kaushal <[EMAIL PROTECTED]> wrote:
Hi All,
I am facing one strange issue. All of sudden my user accounts are getting locked out in certain OU's. The event logs says
Event Id - 675, AUDIT FAILURE, Security, Mon Nov 14 12:50:57 2005, NT AUTHORITY\SYSTEM, Pre-authentication failed: User Name: xyz User ID: %{xyz} Service Name: krbtgt/domain name Pre-Authentication Type: 0x2 Failure Code: 0x18 Client Address: IP address.
Event Id - 644, AUDIT SUCCESS, Security, Mon Nov 14 12:50:56 2005, NT AUTHORITY\SYSTEM, User Account Locked Out: Target Account Name: xyz Target Account ID: %{xyz} Caller Machine Name: Name of the machine Caller User Name: Name of the DC Caller Domain: Domain Name Caller Logon ID: (0x0,0x3E7)
They also get clear after some time automatically. One reason which i figure out is that it could be related to the system time of the client machine with the system time of DC ( Related to failure of Kerberos ticket ) . Any other pointers???
Thanks in Advance.
Regards,
Sudhir Kaushal
Systems Engineer (GIS)
Computer Sciences Corporation.
India - + 91 120 2582323 Ext. 2649
Denmark - + 45 70100024 Ext. 2649
"You never win Silver, You lose Gold"
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