Dhcp not updating dns ptr records

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Would appreciate any pointers on getting this to work.

I've got a Windows 2012 Domain Controller running DNS and DHCP servers.

When a DHCP server is added to the Dns Update Proxy group, its records aren't secured, meaning that other DHCP servers can update the records.

In additon, hosts can change the records and then become the owner of the record.

Q: Does setting DNS dynamic update credentials on DHCP achieve the same result as adding a DHCP server to the Dns Update Proxy group?

A: The short answer is no; however, it's important to step back and understand how DNS interacts with DHCP regarding dynamic updates, then look at what each of the two actions mentioned in the title actually does—namely, setting DNS dynamic update credentials on DHCP and adding a DHCP server to the Dns Update Proxy group.

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