即使用户正在使用他的帐户,他也会锁定(他已登录)

检查20台服务器后,我发现他们是服务运行,导致他的帐户锁定我想.

675,AUDIT FAILURE,Security,Thu Dec 16 07:54:04 2010,NT AUTHORITY\SYSTEM,Pre-authentication Failed:     User Name:  userid     User ID:  %{id}     Service Name:  krbtgt/DOMAIN     Pre-Authentication Type: 0x2     Failure Code:  0x12     Client Address:  IP address

有谁知道这是什么

krbtgt/DOMAIN     
Key Distribution Center Service Account

有些人可以向我解释一下为什么会发生这种情况,以及我如何解决这个问题.

675,Fri Dec 24 09:13:01 2010,Pre-authentication Failed:     User Name:  user_id    User ID:  %{id}     Service Name:  krbtgt/Domain     Pre-Authentication Type: 0x2     Failure Code:  0x12     Client Address:  172.16.5.1    
675,Fri Dec 24 08:49:06 2010,Pre-authentication Failed:     User Name:  user_id    User ID:  %{id}     Service Name:  krbtgt/Domain     Pre-Authentication Type: 0x2     Failure Code:  0x12     Client Address:  172.16.5.102    
644,AUDIT SUCCESS,User Account Locked Out:     Target Account Name: user_id    Target Account ID: %{id}     Caller Machine Name: UKNML3266     Caller User Name: LONDON$    Caller Domain: Domain     Caller logon ID: (0x0,0x3E7)    
675,Pre-authentication Failed:     User Name:  user_id    User ID:  %{id}     Service Name:  krbtgt/Domain     Pre-Authentication Type: 0x2     Failure Code:  0x18     Client Address:  172.16.5.102    
675,Fri Dec 24 08:46:28 2010,Pre-authentication Failed:     User Name:  user_id    User ID:  %{id}     Service Name:  krbtgt/Domain     Pre-Authentication Type: 0x2     Failure Code:  0x18     Client Address:  172.16.5.8    
675,Pre-authentication Failed:     User Name:  user_id    User ID:  %{id}     Service Name:  krbtgt/Domain     Pre-Authentication Type: 0x2     Failure Code:  0x18     Client Address:  172.16.5.8    
c:\sc0472\LONDON-Security_LOG.txt contains 8 parsed events.