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Special Edition Using Microsoft Active Directory by James Hudson, Sean Fullerton

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DNS Record Aging and Scavenging

Every database must have a mechanism in place to check the validity and sanity of the dataset. The DNS database is no exception. Windows 2000 DNS provides aging and scavenging of records for both AD and standard zones.

Inevitably, some computers will be removed from the network without the opportunity to delete their DNS records. This will, over time, lead to "stale" records in the DNS database. Aging enables you and the DNS service to track the time interval since a DNS record has been updated. Scavenging is the process of deleting stale records that have been identified by the aging process.

Features of DNS Record Aging and Scavenging

Aging and scavenging enable records that are not updated within a configured ...

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