How do I configure DHCP for dynamic updates in Windows Server 2008?
Configuring the Scope properties
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The default is for a DHCP client to update A (host name) records and have the DHCP server update the PTR records. If you select the Always dynamically Update DNS A and PTR records option, as we have done, the DHCP server updates all A and PTR records. If you select the Discard A and PTR records when lease is deleted check box, when any client lease expires, the DNS entries expire and will be removed. Deselecting the box simply leaves your lookups there.
The default is for a DHCP client to update A (host name) records and have the DHCP server update the PTR records. If you select the Always dynamically Update DNS A and PTR records option, as we have done, the DHCP server updates all A and PTR records. If you select the Discard A and PTR records when lease is deleted check box, when any client lease expires, the DNS entries expire and will be removed. Deselecting the box simply leaves your lookups there.
