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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.” “With secure dynamic update, only the computers and users you specify in an ACL can create or modify dns Node objects within the zone.By default, the ACL gives Create permission to all members of the Authenticated User group, the group of all authenticated computers and users in an Active Directory forest.Please understand, the main thing that scavenging works on is the timestamp.If there is no timestamp, such as a manually created, static record, it will not get scavenged.For domain controllers, due to the importance of keeping up to date and accurate SRV and other records, the Netlogon service will attempt to update these records every 60 minutes.By default, on a computer that is running Windows XP/2003 or newer, the Default Registration Refresh Interval key value controls this (except Windows 2000, whichdoes not have this key but can be added), and is set by default to 1 day.
A quick Facebook read the first line and click “Like,” seems to be the norm. And yea, I had to state Windows 2000 and newer, because this stuff doesn’t apply to older Windows versions.
Even when registering DNS on the client, nothing is added on the DNS servers.