September 2003
Intermediate to advanced
624 pages
15h 49m
English
Content preview from Active Directory CookbookBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
15.3. Enabling NetLogon Logging
Problem
You want to enable NetLogon logging to help with troubleshooting client account logon, lockout, or domain controller location issues.
Solution
Using a command-line interface
To enable Netlogon logging, use the following command:
> nltest /dbflag:0x2080ffff
To disable Netlogon logging, use the following command:
> nltest /dbflag:0x0
Discussion
The netlogon.log file located in %SystemRoot%\Debug can be invaluable for troubleshooting client logon and related issues. When enabled at the highest setting (0x2000ffff), it logs useful information, such as the site the client is in, the domain controller the client authenticated against, additional information related to the DC Locator process, account password expiration information, account lockout information, and even Kerberos failures.
The NetLogon logging level is stored in the following registry value:
HKLM\System\CurrentControlSet\Services\Netlogon Parameters\DBFlag
If you set that registry value manually, instead of using
nltest, you’ll need to
restart the NetLogon service for it to take effect.
One of the issues with the netlogon.log file is
that it can quickly grow to several megabytes, which makes it
difficult to peruse. A new tool available for Windows XP and Windows
Server 2003 called nlparse can filter the contents
of the netlogon.log file so
that you’ll only see certain type of log entries.
The nlparse tool is part of the Account Lockout and Management Tools that Microsoft made available from ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.