DNS Scavenging Issues

We're having a bit of an issue with DNS scavenging and accurate entries in the forward lookup zone.

Domain:  Server 2008 R2 (Forest and Domain)
Scavenging:  Enabled (7 days / 7 days)
Dynamic Updates:  Enabled on DHCP server / No GPO pushing it out, default should automatically do it

We're seeing a lot of issues with dns records as far back as February of this year.  Some machines are part of our domain, others aren't (personal PCs, Blackberry devices, iPhones, etc.)  We also see multiple entries in forward and reverse zones.

Any ideas?
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Mike KlineConnect With a Mentor Commented:
Did you set it on the zone and on the server.  I'm guessing you saw this blog entry


Are the records not being scavenged static or dynamic?

Another good blog from my friends at cb5   http://cbfive.com/blog/post/Untying-Aging-and-Scavenging.aspx   they talk about aging (same as your screenshot)


Darius GhassemCommented:
Really seems like scavenging is not setup properly.
Chris DentPowerShell DeveloperCommented:

You have enabled automatic Scavenging haven't you? DNS Console / Server Properties / Advanced.

The zone you have in the screenshot above shows that it's next elligible for Scavenging either on 1st September. If Scavenging had run that value would have updated.

Feel free to run Scavenging manually (right click on the Server, Start Scavenging), then check your Event Log for the scavenging report.

BWWBmarcAuthor Commented:
One of the links posted contained the answer.
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