Enable Aging And Scanvenging in Windows 2003

There are a number of things which must be configured for this to work.

First the Aging Intervals. You can either set this per-zone, or set a default for all zones on the server level.

Given that the interval is 45 days we'll set the total Aging period to match that.

You'll find these options under the Properties for your zone (e.g. domain.com). Click the Aging button then tick the box at the top.

No-Refresh Interval: 35 Days
Refresh Interval: 10 Days

Then the Scavenging Process needs to be configured. Open up the Server Properties. Select Advanced, then tick the box to enable Scavenging and set an Interval.

If you have a small domain (less than a few thousand clients) setting Scavenging to run once per day is reasonable. It won't place any noticeable load on your Domain Controllers and will keep it neat and tidy. For larger domains, 10k+, setting once a week may be enough but can be tweaked depending on your needs.

With these settings a record will exist for 45 days, then disappear at the next Scavenging Period.

You should also take a look at this MS Blog on this topic. It covers a lot of the detail that I haven't here:

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

HTH

Chris

Hi, thanks for your reply.
It is very clear, the only thing I have a doubt.
I go by each DNS zone and enable the "Aging."
Ok?
Well, I attached a screenshot of my doubt.

There is a checkbox in that part of aging.

It has to be enabled or not?

Understood, it must be enabled on the tab of the properties of the server and not on the properties of the aging of the zone

thx again.
aging-options.JPG