Reset Aging and Scavenging Properties for a Specified Resource Record

Updated: May 9, 2008

Applies To: Windows Server 2008

The DNS Server service supports aging and scavenging features. These features clean up and remove stale resource records, which can accumulate in Domain Name System (DNS) zone data over time.

You can use this procedure to reset aging and scavenging properties for a specified resource record. You can complete this procedure using either the DNS Manager snap-in or the dnscmd command-line tool.

Membership in Administrators, or equivalent, is the minimum required to complete this procedure. Review details about using the appropriate accounts and group memberships at Local and Domain Default Groups (

  1. Open DNS Manager. To open DNS Manager, click Start, point to Administrative Tools, and then click DNS.

  2. In the console tree, click the applicable zone.

  3. In the details pane, double-click the resource record for which you want to reset aging and scavenging properties.

  4. Depending on the how the resource record was originally added to the zone, do one of the following:

    • If the resource record was added dynamically using dynamic update, clear the Delete this record when it becomes stale check box to prevent the aging or potential removal of the resource record during the scavenging process. If dynamic updates to this record continue to occur, the DNS server will always reset this check box so that the dynamically updated record can be deleted.

    • If you added the record statically, select the Delete this record when it becomes stale check box to permit its aging or potential removal during the scavenging process.

  • This procedure is necessary only for resource records that are registered dynamically. For records that you add to a zone manually, a time stamp value of 0 always applies to the record, which excludes it from the scavenging process.

  • Aging and scavenging properties for name server (NS) resource records and start of authority (SOA) resource records are reset in the properties for the zone, not in the properties of the resource record.

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