Domain Controller Diagnostics
You might be thinking how well does a command line utility really do at testing and finding issues with domain controllers.
Domain controller diagnostics. Domain controller diagnostic tool. Dcdiag is a microsoft windows command line utility that can analyze the state of domain controllers in a forest or enterprise. For the purposes of this article we will only work with this version of the utility that is included with windows server 2008.
Posey in this article i will show you some more tests that can be performed on the domain controller diagnostic tool. The domain controller diagnostic tool is now part of windows. Most but not all of the features we will talk about are available in windows.
Picture 3 working with the domain controller diagnostic utility part 4 download this picture here working with the domain controller diagnostic utility part 3 brien m. Explore the world one photo at a time with a new background each day. Domain controllers are the most crucial part of every ad infrastructure and its best practice to ensure your running health checks and diagnostics on it regularly to ensure its health and functionality.
From my personal experience it s definitely the best and the most visual way for real time monitoring and diagnostic. I look at all the logs before and after the update to the domain controller looking for abnormal events. Thank you for downloading dcdiag exe.
The event viewer is always a must. The registry entries that manage diagnostic logging for active directory are stored in the following registry subkeys. With the pre check i usually go back a month of logs to get more historical data.
The dcdiag utility can be used to diagnose the health of active directory domain controllers dns servers ad replication and other domain services. This utility is built into the modern windows server 2019 2016 2012r2 versions in previous versions of windows server the dcdiag utility must be installed manually from the support tools package. Domain controller diagnostic tool from official microsoft download center.