<div>
There are several options in DHCP to help with this issue. &nbsp;Open the DHCP MMC, right click on your server and select properties, then click the DNS tab.<br />
<br />
Enable these three options:<br />
1) Enable DNS dynamic updates, etc...<br />
2) Discard A and PTR records whe lease is deleted.<br />
3) Dynamically update DNS A and PTR records for DHCP clients that do not request updates<br />
<br />
Click OK and close DHCP MMC<br />
<br />
In the DNS MMC go to properties of the desired zone(s), on the general tab you can set Aging/scavenging properties.
</div>


There are several options in DHCP to help with this issue.  Open the DHCP MMC, right click on your server and select properties, then click the DNS tab.

Enable these three options:
1) Enable DNS dynamic updates, etc...
2) Discard A and PTR records whe lease is deleted.
3) Dynamically update DNS A and PTR records for DHCP clients that do not request updates

Click OK and close DHCP MMC

In the DNS MMC go to properties of the desired zone(s), on the general tab you can set Aging/scavenging properties.

<div>
Sounds like you may need to implement DNS scavenging:<br />
<br />
<a href="http://blogs.technet.com/b/networking/archive/2008/03/19/don-t-be-afraid-of-dns-scavenging-just-be-patient.aspx" rel="ugc">http://blogs.technet.com/b/networking/archive/2008/03/19/don-t-be-afraid-of-dns-scavenging-just-be-patient.aspx</a><br />

</div>


Sounds like you may need to implement DNS scavenging:

http://blogs.technet.com/b/networking/archive/2008/03/19/don-t-be-afraid-of-dns-scavenging-just-be-patient.aspx [http://blogs.technet.com/b/networking/archive/2008/03/19/don-t-be-afraid-of-dns-scavenging-just-be-patient.aspx]


<div>
<div class="content wysiwyg-content">
forward lookup zone and reverse lookup zone for dns has multiple entries for one IP. What is the best way to cleanup DNS and DHCP?
</div>
</div>


forward lookup zone and reverse lookup zone for dns has multiple entries for one IP. What is the best way to cleanup DNS and DHCP?

DNS Question

Windows Server 2003 was based on Windows XP and was released in four editions: Web, Standard, Enterprise and Datacenter. It also had derivative versions for clusters, storage and Microsoft’s Small Business Server. Important upgrades included integrating Internet Information Services (IIS), improvements to Active Directory (AD) and Group Policy (GP), and the migration to Automated System Recovery (ASR).

Windows Server 2003

The Domain Name System (DNS) is a hierarchical, globally distributed system responsible for associating the name of a computer, service or other resource into an IP address for connecting to the Internet or a private network. Most prominently, it translates domain names to the numerical IP addresses needed for the purpose of computer services and devices worldwide.