The entity that registers the record in DNS, owns the record. In this mode, the DHCP server always performs updates of the client’s FQDN, leased IP address information, and both its host (A) and pointer (PTR) resource records, regardless of whether the client has requested to perform its own updates.” Note: “This is a modified configuration supported for DHCP servers running Windows Server 2008 and DHCP clients. If Windows 2008/Vista, 2008 R2, Windows 2012 R2, Windows 7, 8, 8.1, 1, and all future releases, the DHCP server always registers and updates client information in DNS If set to DHCP, a Windows 2000, 2003 or XP machine, will request DHCP to allow the machine itself to register its own A (forward entry) record.īut DHCP will register its PTR (reverse entry) record. And yea, I had to state Windows 2000 and newer, because this stuff doesn’t apply to older Windows versions. By default, ALL Windows 2000 and newer machines statically configured machines will register their own A record (hostname) and PTR (reverse entry) into DNS. Please read thoroughly before asking me why your PTR updates don’t work.ġ. This is the part that many do not understand. Records & timestamps, and the lack of timestamps.DHCP Lease has a “pen” or “pencil” Icon.Scavenging Refresh & NoRefresh Settings must be less than the DHCP Lease Period.DNS Timestamp and Scavenging (and info on the dnsTombstoned Attribute).Summary: How to configure DHCP & Dynamic DNS Updates. Preface: The entity that registers the record into DNS, owns the record.Well, I will also offer the nitty gritty below the summary for those who want to read. Well, I thought it’s time for an update and to just offer a summary in the beginning, because in this day and age, no one wants to read! A quick Facebook read the first line and click “Like,” seems to be the norm. I originally posted this in 4/2006, and updated throughout the years, but I still get questions from time to time asking why updates are not working, especially PTR.
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