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The credentials allows DHCP to own the record, so in case the device leaves and returns at a later date and gets a new IP, the DHCP service can update the old host record in DNS with the new IP.
Without credentials, the device will update, but it may not be able to update its old record, which then you may wind up with duplicate host entries in the zone. The first thing we need is a Windows Server with the DHCP and DNS services installed and running.
Of course you must have the local admin account credentials on all your computers to run this remotely, and the remote Registry service started, and possibly antivirus software and Windows firewall configured to allow this.
You’ll want to target and populate the following two registry entries with your zone name, such as adatum.com: Using the above two keys, try this VB script: SET WSHShell = Create Object(“WScript. Reg Write “HKLM\System\Current Control Set\Services\TCPIP\Parameters\NV domain”, “adatum.com“, “REG_SZ” WSHShell.
If it doesn’t have a Primary DNS Suffix, then this automatic part will not happen.
You can easily tell if any Windows computer has a Primary DNS Suffix by a simple ipconfig /all, however I’m sure you already know if your server has one configured one or not, since this must be manually done on a workgroup computer.
Archived from groups: microsoft.public.win2000(More info? )Server 2000 SP4 Domain Controller (bigorange.local)Active Directory integrated DNS (forward and reverse)Test Environment, not connected to the Internet Server 2003, NT 4.0 and XP Pro Clients (1 each)dcpromo created my dns and I deleted the root zone.
In an AD domain environment, the credentials would be a plain-old AD Domain User account. Then configure DHCP to force update all records, whether the entity can register or not.
And further, as we already know, that’s what a computer needs to register into a zone with the same name.
If you weren’t aware of this basic requirement, you can catch up on how Dynamic DNS registration works by reading my other blog: AD & Dynamic DNS Updates Registration Rules of engagement However, workgroup computers normally do not have a Primary DNS Suffix, unless you’ve already manually configured all of them.
Neither do other devices, such as mobile phones, tablets and other non-Microsoft products. We can make this work without a Primary DNS Suffix.
After all, non-Windows devices, such as phones and tables, do not have such a setting to configure.
Read the following discussion for more info: Technet thread: “Server 2008 R2: DNS records not dynamically registering in workgroup situation” 12/31/2010 NIS/thread/2380872f-2e71-49eb-8fbb-87f980920fc7/ Not that this will work for your non-Windows devices, but I’m providing this information if you want to only configure your Windows computers.