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housekeeping in DNS

Posted on 2012-03-26
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Last Modified: 2013-05-05
Hi

We are running DNS in a windows 2003 environment, and I recently noticed that I am seeing more than 1 host A record for an ip address. How can I do an automatic clean up on my DNS?

Any help appreciated.

Thanks
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Question by:gmollineau
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8 Comments
 
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Chris Millard earned 500 total points
ID: 37766425
You should look into setting up Scanvenging Stale records on the DNS server
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Expert Comment

by:Chris Millard
ID: 37766429
Sorry - my spelling is rubbish today - scavenging stale records

http://technet.microsoft.com/en-us/library/cc757041(v=ws.10).aspx
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Author Comment

by:gmollineau
ID: 37766518
good. Should I use the default of 7 days?
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LVL 17

Expert Comment

by:Chris Millard
ID: 37766538
You could, but I normally set mine to 1 day because a lot of laptops keep coming and going on the network...
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Author Comment

by:gmollineau
ID: 37766613
I choose this option

"In the console tree, right-click the applicable Domain Name System (DNS) server, and then click Set Aging/Scavenging for All Zones."

I set the no refresh interval as 7 days, refresh interval 7 days, and applied these settings to the existing AD-integrated zones

I did this for both of my DNS servers.

I am on the right track?
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LVL 17

Expert Comment

by:Chris Millard
ID: 37766630
Yes. It won't necessarily have an immediate effect, but what you've done sounds OK.
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Author Comment

by:gmollineau
ID: 37766757
If I leave the config  that I did above, and I use this option below and set it to 1 day. Would it cause any problems?

To configure automatic scavenging of stale resource records
Open the DNS snap-in.

In the console tree, right-click the applicable Domain Name System (DNS) server, and then click Properties.

Click the Advanced tab.

Select the Enable automatic scavenging of stale records check box.

To adjust the scavenging period, in Scavenging period, select an interval in the drop-down list (either hours or days), and then type a number in the text box.
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Author Comment

by:gmollineau
ID: 37796217
This is not working on my DNS, am I missing something?
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