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The issue was resolved by creating a reverse DNS zone. Afterwards, we get code 32 in the DHCP audit log. For instance:. There are no errors to indicate why the DNS is not actually updating. In there, you'll find that you can force the clients to register their PTR records, rather than having it done by the DHCP server if you so desire , and you can set the TTL on records registered by clients.
So, unless you've used that setting to change the behaviour of the client computers or the DHCP Server, the client computers should be doing the updates on their "A" records.
The event log on the client will tell you more. Sign up to join this community. The best answers are voted up and rise to the top. For the records I manually created, such as internal www records, and others, they did not have a time stamp and were not checked to scavenge. Even if you allow auto registration, which I do by default, and it gets scavenged, it gets re-registered anyway by the OS.
From Ulf B. This posting is provided AS-IS with no warranties or guarantees and confers no rights. The entity that registers the record in DNS, owns the record. Set DHCP to update everything, whether the clients can or cannot. Do not leave it Unsecure Only.
What it scavenges will replicate to others anyway. Overview to make this work: DHCP must own the record, not the client. In addition, I suggest to enable DNS scavenging to remove stale records, which will keep the zone clean. How do we configure DHCP for this to work?? Configure Name Protection.
Scroll down to the DnsUpdateProxy group. Set Option to only the internal DNS servers. Note — you can do this on R2 and newer, if you chose not to use. The user account does not need any elevated rights, a normal user account is fine. Choose a very strong password. Set the password so it does not expire. For Windows It must be done with the Netsh command. Windows and newer can also be done with the Netsh command, if you desire.
Note on older, pre-existing records in DNS: After configuring the above provedure, the credentials and DnsUpdateProxy group configuratuion will not update current or delete duplicate records.
Step by step screenshots: Windows No harm done, whether you have IPv6 scopes or not. This is because the Name Protection feature takes over these functions, and will force register everything, so these settings are no longer used.
This is because Name Protection took over these functions:. In Summary: Scavenging is a feature that will remove expired records based on their Timestamps. Scavenging is not enabled by default. Select the Scavenge stale resource records check box. You can now either choose to set Scavenging for all zones, or choose No, and manually set each zone individually.
I suggest setting it for all zones. If I manually update the DNS entry or add a manual entry in the forward lookup zone the locks appear correctly in the security console. Entries that I removed in DNS have not come back. DHCP leases is set to eight days have tried 1 hour but made no difference. Only one DNS server is set in the scope options there are four DNS servers in total, three on one site and one on another.
The forward lookup zone is set to allow secure and none secure updates and both ageing options are set to 7 hours. Domain and Forest level is set to I think this DNS issue might also be the cause of other devices not working correctly. The previous role holder for this job did a poor job and now everything is starting to come back to haunt me.
I recommend creating a dedicated user account for this purpose, it does not need any 'special' permissions, membership in the Domain Users group is all that is required. So far that doesn't appear to have done anything. So just to be sure, is this user account also a member of Domain Users group? Make sure password is strong and set to never expire ;-. This group is located in the built-in 'Users' container.
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