active directory

user account is locked out in my domain

I ran account lock out tool  for that user and it pointed to my DC to look for event logs.

I got following:

security id: system
account name: dc name
account domain: name of domain
logon id: 0x3e7
details:
subject user id: S-1-5-18
TARGET sid- s-1-5-21-968979113-105-3586556-204008010-32768

caller computer name:

caller computer name is blank

 what inference can I draw
pramod1Asked:
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Dan McFaddenSystems EngineerCommented:
The SID is the account that is having the issue.  You can grab the username with a little Powershell.  This link shows you how to do this:  Convert SID to User Name using PowerShell

Here is more of an in depth explanation of the article above:

Link:  https://technet.microsoft.com/en-us/library/ff730940.aspx

Dan
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pramod1Author Commented:
Sorry, I didn't get you, what is happening with his SID account , his user name is sm1jrh, how should I run the script and should I run on DC.?
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Dan McFaddenSystems EngineerCommented:
Don't bother with the Powershell.  Asking "what inference can I draw " is asking what does the info you posted mean.

If you know the user account name, then all you need to do is unlock the account.  Open the "AD Users and Computers" management tool, search for the user account and unlock the account.

Dan
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pramod1Author Commented:
it is locked frequently and I ran the account lock out tool and it gave the above result In event viewer on DC

so my question was what is wrong with SID account you mentioned, I unlocked it still it gets locked every morning or late eening

so what is wrong so I can the script you gave
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Dan McFaddenSystems EngineerCommented:
There is nothing wrong with the SID that you mentioned.  You asked what is to be done with that message, I told you what it meant.  You did not mention that you had already unlocked the account.

You need to determine where (which computer) this account is being used and for what purpose(s) its being used.  If it is only being used as a login account for a person (not a service) then you figure out what that person is doing to lock out their account so often.

Dan
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pramod1Author Commented:
so what was that script for, computername is not mentioned in event viewer.
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pramod1Author Commented:
it gives audit failure : service name: krbtgt\domain name
status : 0x18
ip address as well
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Dan McFaddenSystems EngineerCommented:
The Powershell commands were to determine the account username by using the SID.

What command(s) return the message:


it gives audit failure : service name: krbtgt\domain name
status : 0x18
ip address as well

When answering, please indicate what commands you are using.  Its helps me help you.

Dan
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pramod1Author Commented:
I used account lock out tool again and it pointed me to event viewer on DC I pulled from there
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Michael PfisterCommented:
Have a look at the Dcs security event log around the time the lockout happens. if you're lucky it will log more Information right before or after the lockout
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