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Much has been written about the complexity of DNS, and even more confusion and misconceptions have been written about it. In truth, however, DNS structure is logical, so you can easily troubleshoot it, if you use the proper tools and techniques. A good grasp of these tools and their functionality is a must for proper name-resolution troubleshooting with DNS.
As any good administrator will know, Event Viewer is the first place to look when troubleshooting. Windows Server 2008 R2 makes it even more straightforward to use because DNS events compiled from Event Viewer are immediately accessible from the DNS Manager Console. Parsing this set of logs can help you troubleshoot DNS replication issues, query problems, and other issues.