.================================================================= There are some misconceptions prompting fears that Scavenging will remove everything in your zone, includind servers.
Please understand, the main thing that scavenging works on is the timestamp.
Solution DHCP servers have the ability to send dynamic DNS updates, as they allocate IPs to clients.
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If there is a problem with PTRs getting updated even after configuring credentials, please see this article: DHCP server processes expired PTR resource records in Windows Server 2003 . The use of Name Protection in the Windows Server® 2008 R2 operating system prevents name squatting by non-Windows-based computers.
Name squatting does not present a problem on a homogeneous Windows network where Active Directory® Domain Services (AD DS) can be used to reserve a name for a single user or computer.” DHCP Step-by-Step Guide: Demonstrate DHCP Name Protection“Name squatting occurs when a non-Windows-based computer registers in Domain Name System (DNS) with a name that is already registered to a computer running a Windows® operating system.