How to integrate DHCP and DNS
One of the best aspects of Microsoft in general is how they seamlessly link their services. A classic case in point is the way Microsoft integrate DHCP and DNS. In fact, the ability of DHCP to update DNS records is what transforms static NT 4.0 DNS, into dynamic 2003 DNS. This link provides huge administrative savings and means that you can concentrate on configuring DHCP and DNS and phase out WINS.
Where do you find the DNS tab in DHCP?
The answer is navigate to the DHCP scope, not the DHCP server icon, and certainly not the DNS snap-in. Once you select your scope, its straightforward, to right click, properties, and select the DNS (Tab).
Understanding the DNS options:
DHCP’s default settings are shown in the diagram. The scope is all set to dynamically update DNS should the client be leased a different IP address. After all, DHCP is dynamic.
XP clients are intelligent and use DHCP to update their OWN records in DNS.
Alas, Windows 98 and NT clients are primitive and need help from the very DHCP server to notify DNS of their new IP address. So, if you have these ancient clients, change the radio button to: Always dynamically update DNS A and PTR records. I would also tick the bottom checkbox if I had Windows 98 or NT clients. The box that says: ‘Dynamically update DNS…’
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