Windows dns not updating from dhcp
Microsoft Dynamic DNS (DDNS) is a wonderful feature.Combined with Active Directory (AD) it makes managing thousands of DNS records for clients and servers a breeze.
This must be checked for the DDNS process to proceed.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.Ace Fekay, MCT, MVP, MCITP EA, Exchange 2010 Enterprise Administrator, MCTS Windows 2008, Exchange 2010 & Exchange 2007, MCSE 2003/2000, MCSA Messaging 2003 Microsoft Certified Trainer Microsoft MVP: Directory Services Active Directory, Exchange and Windows Infrastructure Engineer Compiled 4/2006, recompiled 7/2009, & 1/4/201011/30/2011 – added DHCP credentials and DHCP/DNS tab properties screenshots.3/10/2012 – Added enabling DNS scavenging screenshots.8/22/2012 – Verified with a Microsoft enginner, we need to use the Dns Update Proxy group and configure credentials to work, not one or the other. Also fixed missing screenshots8/3/2012 – Additional info about DHCP Name Protection and that it requires Credentials, Dns Update Proxy, but more so to secure the Dns Update Proxy group .When a client shuts down, and later returns past the lease time, it may get a different IP address.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).
When one link in the chain fails, records may stop getting updated or may even get removed altogether inadvertently!
In case your DHCP server is a standalone Windows Server 2012 server, you can use the local administrator account credentials to log on while making the above configurations in the DHCP server.
Here is how you can enable the DNS integration with the Windows Server 2012 DHCP server: Once done, click OK to save the changes that you have made.
There are a few other settings that must be correct on each client as well.
Here's a Power Shell script that lets you easily test for multiple different problem scenarios. Ensure dynamic updates are enabled on the DNS zone This is less likely to be the problem because all clients would not be working is the dynamic updates setting on the DNS zone. If set to Secure, you may begin to see more instances like the ones we'll be talking about in #4 below. Check permissions on the dns Node AD object This problem in particular was extremely hard for us to track down on one occasion.
Despite it being a DHCP Option, it’s not found in a DHCP server, scope or class option. You must delete them manually to allow DHCP to take care of all new records moving forward. Quoted from the following link: “Name squatting occurs when a non-Windows-based computer registers in Domain Name System (DNS) with a name that is already registered to a computer running a Windows® operating system.