Brian W. McCann: I get asked over and over about what I do when I'm performing a health check on a domain controller. Below you will see some of the commands that I use when I need to ensure my domain controllers are still healthy after some sort of change...like patching.
The Event Viewer is always a must. I look at all the logs before and after the update to the domain controller looking for abnormal events. With the pre-check I usually go back a month of logs to get more historical data. I then run through a couple command line utilities. One thing I always do is pipe my commands out to a text document. This just makes it easier for me to read and also search for failed events.
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