If you're not familiar with how DDNS and AD work together, you may not realize just how many moving parts there are with this product (check out Understanding Dynamic Update from Technet to learn more).
It's hard to imagine having to manually add and remove DNS records as fast as machines are constantly getting replaced in most IT organization these days.
When DDNS is working properly it's wonderful, but when it fails it can sometimes turn into a major pain to troubleshoot.
Imagine if an important server's DNS A record suddenly gets changed to the wrong IP. DDNS can sometimes go on a walkabout and it's important to know where to start troubleshooting if this happens.
Let's demonstrate a typical troubleshooting scenario that you may come across with DDNS.
This can get complicated so if you suspect this is the case, we advise checking out this blog post entitled How to Fix Dynamic DNS Record Permissions Automagically. Temporarily enable DNS debug logging on your DNS server Enabling debug logging on your DNS server allows the server to begin generating a debug log of all dynamic update activity. We have a Power Shell script to ease the pain by displaying the content in a more user-friendly format.
Feel free to refer to this blog post for more information on the script and how to use it.This guide contains instructions to configure a proof of concept (Po C) environment requiring a minimum amount of resources.The guide makes extensive use of Windows Power Shell and Hyper-V.We hope this primer to troubleshooting dynamic DNS updates was able to point you in the right direction to the problem -- and a solution.When a problem occurs start from the client and work your way back.Subsequent companion guides contain steps to deploy Windows 10 using the Po C environment.