The DNS Server service supports aging and scavenging features. These features are provided as a mechanism for performing cleanup and removal of stale resource records, which can accumulate in zone data over time. You can use this procedure to set the default aging and scavenging properties for the zones on a server.
Membership in the Administrators group, or equivalent, is the minimum required to complete this procedure. Review details about using the appropriate accounts and group memberships at http://go.microsoft.com/fwlink/?LinkId=83477.
Setting aging and scavenging properties for the DNS server
To set aging and scavenging properties for the DNS server using the Windows interface |
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Open DNS Manager.
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In the console tree, right-click the applicable DNS server, and then click Set Aging/Scavenging for all zones.
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Select the Scavenge stale resource records check box.
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Modify other aging and scavenging properties as needed.
Additional considerations
- To open DNS Manager, click Start,
point to Administrative Tools, and then click
DNS.
- Aging and scavenging properties that are
configured by this procedure act as server defaults that apply only
to Active Directory Domain Services (AD DS)–integrated
zones. For standard primary zones, you must set the appropriate
properties at the applicable zone.
- When you apply changes for server aging and
scavenging settings, DNS Manager prompts you to confirm the
changes. You then have the option to apply your changes to new
AD DS-integrated zones only. If necessary, you can also apply
your changes to existing AD DS-integrated zones.
- Regardless of whether the Scavenge stale
resource records check box is selected as described in
step 3, for standard primary zones, this feature is disabled
unless it is manually enabled at the applicable zone.
To set aging and scavenging properties for the DNS server using a command line |
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Open a command prompt.
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Type the following command, and then press ENTER:
dnscmd <ServerName> /Config {/ScavengingInterval <Value>|/DefaultAgingState <Value>|/DefaultNoRefreshInterval <Value>|/DefaultRefreshInterval <Value>}
Parameter | Description |
---|---|
dnscmd |
The command-line tool for managing DNS servers. |
<ServerName> |
Required. Specifies the DNS host name of the DNS server. You can also type the IP address of the DNS server. To specify the DNS server on the local computer, you can also type a period (.) |
/Config |
Required. Configures the specified server. |
/ScavengingInterval |
Required. Sets the frequency by which the server will perform scavenging for all scavenging-enabled zones. |
/DefaultAgingState |
Required. Sets the default aging configuration for all zones on the server. |
/DefaultNoRefreshInterval |
Required. Sets the default no-refresh interval for scavenging-enabled zones. |
/DefaultRefreshInterval |
Sets the default refresh interval for scavenging-enabled zones. |
<Value> |
For /ScavengingInterval, type a value in hours. The default is 168 (one week). For /DefaultAgingState, type 1 to enable aging for new zones when they are created. Type 0 to disable aging for new zones. For /DefaultNoRefreshInterval, type a value in hours. The default is 168 (one week). For /DefaultRefreshInterval, type a value in hours. The default is 168 (one week). |
To view the complete syntax for this command, at a command prompt, type the following command, and then press ENTER:
dnscmd /Config /help
Additional considerations
- To open an elevated Command Prompt window,
click Start, point to All Programs, click
Accessories, right-click Command Prompt, and then
click Run as administrator.