DNS updating records

How do you force DNS in Active Directory to update/clean out old records? From time to time we have issues with two pc's having a DNS record for the same ip address. I believe this happens when we rename a pc. I believe the old DNS records do not always automatically get deleted. This causes problems with our VNC veiwer.

Regards,
ABBEtech
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abbetechAsked:
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ARK-DSConnect With a Mentor Commented:
You can just create a startup script to renew IP addresses & FlushDNS and RegisterDNS I think this will get a new IP form the DHCP.
You must be having different subnets for you rHQ and branch offices though...

ipconfig /flushdns
ipconfig /release
ipconfig /renew
ipconfig /registerdns

Regards,

Arun.
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ARK-DSCommented:
Hi,
I am sure you need an automated solution for the deletion of the stale/old-unused records from DNS.
We call it Scavenging. You have to enable scavenging to purge the stale records out of the DNS.
To get a better insight of Scavenging, go through this article:

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

I am sure this is gonna give you the answer to your queries... In case you need any clarifications, let me/us know...

Regards,

Arun.
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abbetechAuthor Commented:
I have Scavenging enable. I believe I problem my be caused by DHCP leases and DNS records, when we bring pc's to HQ to work on them and then return them to their orginal branch/site. If their lease gets renew at HQ (leases are for 1 week) when they return to their correct location the DNS records are for HQ.

We delete the dns record at HQ and do a ipconfig /release and /renew at the new location. This fixs the problem with VNC. Other than shorter leases, is there a better way?
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