Dear All,
we implemented GPO for Account lockout policy in our domain with the below setting.
Setting details.
Account lockout threshold : 3 invalid logon attempts
Account lockout duration: 0
Reset account lockout after : 5 mints
We have 70 users with 5 Group, but some users account are getting lockout with out attempts
Event Log details.
Log Name: Security
Source: Microsoft-Windows-Security-Auditing
Date: 7/27/2012 10:15:03 AM
Event ID: 4625
Task Category: Account Lockout
Level: Information
Keywords: Audit Failure
User: N/A
Computer: XXXXXXXXXXXXXXXX
Description:
An account failed to log on.
Subject:
Security ID: NULL SID
Account Name: -
Account Domain: -
Logon ID: 0x0
Logon Type: 3
Account For Which Logon Failed:
Security ID: NULL SID
Account Name: XXXXXXX
Account Domain:
Failure Information:
Failure Reason: Account locked out.
Status: 0xc0000234
Sub Status: 0x0
Process Information:
Caller Process ID: 0x0
Caller Process Name: -
Network Information:
Workstation Name: XXXXXXXXXXXX
Source Network Address: XXXXXXXXXXXX
Source Port: XXXXXX
Detailed Authentication Information:
Logon Process: NtLmSsp
Authentication Package: NTLM
Transited Services: -
Package Name (NTLM only): -
Key Length: 0
This event is generated when a logon request fails. It is generated on the computer where access was attempted.
The Subject fields indicate the account on the local system which requested the logon. This is most commonly a service such as the Server service, or a local process such as Winlogon.exe or Services.exe.
The Logon Type field indicates the kind of logon that was requested. The most common types are 2 (interactive) and 3 (network).
The Process Information fields indicate which account and process on the system requested the logon.
The Network Information fields indicate where a remote logon request originated. Workstation name is not always available and may be left blank in some cases.
The authentication information fields provide detailed information about this specific logon request.
- Transited services indicate which intermediate services have participated in this logon request.
- Package name indicates which sub-protocol was used among the NTLM protocols.
- Key length indicates the length of the generated session key. This will be 0 if no session key was requested.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-Security-Auditing" Guid="{54849625-5478-4994-A5BA-3E3B0328C30D}" />
<EventID>4625</EventID>
<Version>0</Version>
<Level>0</Level>
<Task>12546</Task>
<Opcode>0</Opcode>
<Keywords>0x8010000000000000</Keywords>
<TimeCreated SystemTime="2012-07-27T09:15:03.151737000Z" />
<EventRecordID>3211925</EventRecordID>
<Correlation />
<Execution ProcessID="480" ThreadID="5160" />
<Channel>Security</Channel>
<Computer>XXXXXXXXXXXX</Computer>
<Security />
</System>
<EventData>
<Data Name="SubjectUserSid">S-1-0-0</Data>
<Data Name="SubjectUserName">-</Data>
<Data Name="SubjectDomainName">-</Data>
<Data Name="SubjectLogonId">0x0</Data>
<Data Name="TargetUserSid">S-1-0-0</Data>
<Data Name="TargetUserName">XXXXXXX</Data>
<Data Name="TargetDomainName">
</Data>
<Data Name="Status">0xc0000234</Data>
<Data Name="FailureReason">%%2307</Data>
<Data Name="SubStatus">0x0</Data>
<Data Name="LogonType">3</Data>
<Data Name="LogonProcessName">NtLmSsp </Data>
<Data Name="AuthenticationPackageName">NTLM</Data>
<Data Name="WorkstationName">XXXXX_XXXXX</Data>
<Data Name="TransmittedServices">-</Data>
<Data Name="LmPackageName">-</Data>
<Data Name="KeyLength">0</Data>
<Data Name="ProcessId">0x0</Data>
<Data Name="ProcessName">-</Data>
<Data Name="IpAddress">XX.XXXX.XXXX</Data>
<Data Name="IpPort">57779</Data>
</EventData>
</Event>
i want to know where is the error , why its getting lockout for some users ?
Thanks,
Srinivasan.B