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.We appreciate your input in ensuring the quality of the Microsoft Certification program.If you have concerns about specific questions on this exam, please submit an exam challenge. My problem is, my DNS will NOT update dynamically from the DHCP records.Anyways, when I had my old server running, it updated the DNS from DHCP fine but now that I've virtualized it, which I know has nothing to do with it, and reinstalled a fresh copy, it will not update the DNS table from the DHCP table. I have been over and over my settings and cannot figure it out. The only downside is that non domain-joined devices (e.g. Boudewijn Plomp | BPMi Infrastructure & Security This posting is provided "AS IS" with no warranties, and confers no rights.
Under my DHCP, I have DNS set to "Always dynamically update DNS A and PTR records" and to delete them when the lease expires.
What this means in practice is the following: This means the DHCP server computer account will own certain records in DNS, such as the PTR records and even some A records for older hosts.
(However, it's unlikely that you would have many NT 4.0 hosts in your environment.) This can cause the following two problems: For this reason, DHCP servers could be added to a group called Dns Update Proxy.
Dynamic DNS is a feature that allows hosts to register their records in DNS, thus removing the need for administrators to manually create records.
In addition, Secure Dynamic Update can be required for zones that are Active Directory-integrated (and should be required, per best practices), which allows only members of the Authenticated Users group to register records.