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Scavenging DNS records

Hi,

We have a lot of old duplicated records and i was going to enable scavenging.

However, having a look at some of the timestamps of the records such as the ones for the Exchange 2003 Cluster, i see that their timestamp is from 2005 (i assume when setup).

If i enabled scavenging would it also wipe out these records?

dhoffman_98

Only if they are dynamic records.
DNS records that you create manually as static records will not be scavenged.

Here's some good reading:
http://blogs.technet.com/networking/archive/2008/03/19/don-t-be-afraid-of-dns-scavenging-just-be-patient.aspx

he_who_dares

ASKER

How do you know if they are static or not?

We use dynamic dns and i would imagine those records for the Exchange were dynamically created when it was built..

dhoffman_98

Well, if the record is there because the machine joined the domain and registered it's own DNS, then it's dynamic. If you manually went into DNS and created the record, then most likely it's static, especially if you turn off the check box that says to delete the record when it expires.

he_who_dares

ASKER

Well i imagine the server records were created when joined to the domain yes.

The image below shows the record for one of the exchange cluster nodes.

Does this mean it will get deleted if i run scavenging?
dns.JPG

dhoffman_98

Yes. If you turn off that checkbox, then it becomes a static record that will never become stale and will never have to be refreshed by the client.

he_who_dares

ASKER

so really then its very dangerous to use scanvenging as it could wipe out all your server records?!

ASKER CERTIFIED SOLUTION

dhoffman_98

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