How To Troubleshoot Group Policy Debug Mode


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    Over the past week, some of our users have reported that they are experiencing Group Policy debug mode. You enable a Group Policy setting to enable debug logging. The Debug Settings Registration Policy Modules are located under Computer Configuration Policies Administrative Templates System Group Policy when you edit a GPO. You can activate each alternative client-side extension individually.



    The following article provides information on how to enable the various debug logs required to troubleshoot various Windows problems.

    User vv logging is useful when troubleshooting Group Application Policy or User Profile issues.

    Use Registry Editor to add or modify the following registry entry:

    Subkey: HKEY_LOCAL_MACHINE Software Microsoft Windows NT CurrentVersion Winlogon

    Entry: UserEnvDebugLevel

    Type: REG_DWORD

    Value data: 10002 (hex)

    UserEnvDebugLevel can of course have the following values:

    NO 0x00000000

    group policies debug mode

    NORMAL 0x00000001

    VERB 0x0000002

    LOGFILE 0x00010000

    DEBOGER 0x00020000

    Default (0x00010001) normal | logfile.To

    Note. Disable logging, select NO (0x00000000).

    For example, you can combine verbose 0x00000002 and LOGFILE 0x00010000 to get 0x00010002. Yes

    Therefore, UserEnvDebugLevel with a value of 0x00010002 applies, LOGFILE, not to mention About VERBOSE, both are included. Combining values ​​is similar to using OR in a statement.

    group policies debug mode

    Note. If you finally set UserEnvDebugLevel to 0x00030002, more details will be dived into the Userenv.log file.

    Please note, if the log file is not generated, make sure that it can be restored:% WINDIR% debug usermode folder

    The log file is written from the% Systemroot% Debug UserMode Userenv.log file. If the Userenv.log information exceeds 300 KB, the directory is renamed to Userenv.bak and a new Userenv.log file is created. This action requires the user to be logged in locally or with Terminal Services and Winlogon Task Start. However, since the size check is only possible at user logon, the Userenv.log file can be larger than 309 KB.

    Although the 300KB limit cannot be changed, you can make the Userenv.bak file read-only and the Userenv.log file will grow indefinitely. If you only need to temporarily use this method, remove this read-only attribute from Userenv.File cook as soon as you’re done troubleshooting.

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    Windows mountain Until more GPO processing is performed, a service recognized by the Group Client policy does.

    The service may try to write a log file if our own registry value is implemented like this:

    Note. If the log file has not been created yet, make sure the folder exists:% WINDIR% debug usermode

    Sometimes you want to enable additional logging when troubleshooting a specific Windows component. Recommendations for setting up groups include the ability to maintain a detailed debug log for each enabled client extension. they prefer Select Debug Logging Using Group Policy. Debug settings visit policy settings are located underComputer Configuration Policies Administrative Policy Templates System Group Sites when a GPO is changed.

    You can enable each client-side decision-making extension individually. You can extend the log and trace records with several configuration options, including the data type to write, so thatyou could enable event logs to track errors (info, warnings, or all) Web page and file size of the log and tracking log.

    You can customize the location of the trace files; Note, however, that reading and writing to the file system has changed in Windows Server 2008 and Vista. Make sure the permissions do not interfere with the creation of the log file. You will notice the exact default location for each one. three files are firewood

    However,% COMMONAPPDATA% is not recognized by kind permission – Windows; It makes sense to focus on client extensions. Preferred client extensions adaptively recognize this and extend it depending on the layered work on which the client side is running. the extension is in use. For Windows Server 2003 and Windows XP% COMMONAPPDATA% has been extended to

    % SYSTEMDRIVE% Documents and Users Application Settings All data. Equivalent path for Windows Server 09 and Windows:% SYSTEMDRIVE% ProgramData vista (by default, this folder may be called hidden, but you can enter the path in Windows Explorer).

    When registering events in the application event log, theFolder management can provide a detailed functional log to assist in troubleshooting. Use the following registry key to generate a verbose log file for folder redirection:

    On Windows versions prior to Vista, the analytic log file% windir% Debug UserMode fdeploy.log will be created. However, for Vista, 2008 and later versions of Windows 7, it just gives more details about that particular protocol.

    Netlogon Debug Log

    Debugging Netlogon is useful for solving many problems. Some of them are mentioned below.

    • DC Location Items
    • Account Lockout Issues

    An implicitly installed version of Netlogon.dll related to tracing enabled. To enable debug logging, set the debug flag for the required program in the computer’s registry and restart the service by following these steps:

    1. Start the Regedt32 program.
    2. Remove the Reg_SZ value from the following registry entry, create a REG_DWORD value with a common name, and then add the hexadecimal value 2080FFFF.

      HKEY_LOCAL_MACHINE SYSTEM CurrentControlSet Services Netlogon Parameters DBFlag

    3. At the command prompt, enter net conober and netlogon, then enter. aclean start at netlogon. This includes debug logging.
    4. To suppress debug logging, change the value of the data in the path to 0x0 by following the registry key:

      HKEY_LOCAL_MACHINE SYSTEM CurrentControlSet Services Netlogon Parameters DBFlag

    5. Close Regedt32. Net
    6. Stop the connection, then restart the network connection.
    • After restarting net logon, net logon activities may be logged in% windir% debug netlogon.log.
    • The MaximumLogFileSize registry entry can be used to set the maximum size for the Netlogon.log directory. By default, this registry entry does not exist, and the default maximum size associated with the Netlogon.log file is 20 MB. When the file reaches 20MB, it will also be renamed. in Netlogon.bak and a new Netlogon.log file is created. This registry entry provides the following parameters:

      Path: HKEY_LOCAL_MACHINE SYSTEM CurrentControlSet Services Netlogon Parameters

      Value name: MaximumLogFileSize

      Value type: REG_DWORD

      Data value:

    • On computers running Windows Server 2003, you can use the following Group Policy to adjust the music log file size:

      Computer Templates System Net configuration Administrator Logon Maximum log file size

    Note. Alternatively, you can install our dbflag without using a registry. To do this, you need to run the following command from this command line:

    Nltest is part of Windows Server 2008 and is also part of the Support Tool Systems on the installation media for Windows Server 2003, Windows XP, and Windows 2000.

    Now that we’re done debugging, you can run the nltest / dbflag: 0x0 command from a command to quickly reset the debug flag to 0.

    For more information, click the following KB article numbers:

    • 247811 ( How are domain controllers located in (http: // support windows
    • 189541 / kb / 189541 /) Use the actual Netlogon-checked.dll to track account locks.

    To receive additionalFor more information, click the following article numbers in the Microsoft Knowledge Base:

    • 247811 ( How are domain controllers located in (http: // support windows
    • 189541 / kb / 189541 /) Using my Netlogon-Checked.dll to track Akun locks



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    How do I see Group Policy errors?

    Group Policy files are missing The easiest way to check this is to open SYSVOL domain Policies in Windows Explorer and look for specific files noted in the Userenv error list that appear at the top on affected computers. Files for each group objectth policies are located in a subfolder of the corresponding policy folder.

    How do I enable Gpsvc logs?

    Click Start, click Run, type regedit, and then click OK.Find and click our own registry subkey below: HKEY_LOCAL_MACHINE Software Microsoft Windows NT CurrentVersion.

    How do I troubleshoot Group Policy issues?

    1 – Confirm that the CSE is prepared. This is a great place to start.2 – Quick check of GP status. Eliminate the weird stuff by running GPResult.3 – Consult the event log.4 – Check CSE registrations.




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