MicrosoftDNS_Zone Class (Windows)

MicrosoftDNS_Zone Class

The MicrosoftDNS_Zone class describes a DNS Zone. Every instance of the MicrosoftDNS_Zone class must be assigned to exactly one DNS Server. Zones may be associated with multiple instances of MicrosoftDNS_Domain or MicrosoftDNS_ResourceRecord classes.

The following syntax is simplified from MOF code.

Syntax

class MicrosoftDNS_Zone : MicrosoftDNS_Domain
{
  uint32  ZoneType;
  boolean DsIntegrated;
  uint32  AllowUpdate;
  string  DataFile;
  boolean DisableWINSRecordReplication;
  uint32  Notify;
  uint32  SecureSecondaries;
  boolean Paused;
  boolean Shutdown;
  boolean Reverse;
  boolean AutoCreated;
  boolean UseWins;
  boolean Aging;
  uint32  RefreshInterval;
  uint32  NoRefreshInterval;
  uint32  AvailForScavengeTime;
  string  MasterServers[];
  string  LocalMasterServers[];
  string  ScavengeServers[];
  string  SecondaryServers[];
  string  NotifyServers[];
  uint32  ForwarderTimeout;
  boolean ForwarderSlave;
  uint32  LastSuccessfulSoaCheck;
  uint32  LastSuccessfulXfr;
};

Methods

The MicrosoftDNS_Zone class defines the following methods.

Method	Description
PauseZone	Pauses the Zone. Qualifiers: Implemented
ResumeZone	Resumes the Zone. Qualifiers: Implemented
ReloadZone	Reloads the Zone. Qualifiers: Implemented
ForceRefresh	Forces an update of the secondary from the Master DNS Server. Qualifiers: Implemented
UpdateFromDS	Forces an update of the Zone from the Directory Service (DS). For this method to be valid, the ZoneType must be 0—the Zone must indeed be stored in the DS. Qualifiers: Implemented
WriteBackZone	Saves Zone data to its zone file. Qualifiers: Implemented, static
AgeAllRecords	Enables aging for some or all non-NS and non-SOA records.
CreateZone	Creates a new zone. Qualifiers: None.
ChangeZoneType	Changes zone types. Qualifiers: Implemented
ResetSecondaries	Resets the secondary ip address array. Qualifiers: Implemented
GetDistinguishedName	Obtains DS distinguished Name for the zone. Qualifiers: Implemented

Properties

The MicrosoftDNS_Zone class defines the following properties.

Aging

Data type: boolean
Access type: Read-only

Specifies the aging and scavenging behavior of the zone. Zero indicates scavenging is disabled. When scavenging is disabled, the timestamps of records in the zone are not refreshed, and the records are not subjected to scavenging. When set to one, records are subjected to scavenging and their timestamps are refreshed when the server receives the dynamic update request for the records. For Active Directory-integrated zones, this value is set to the DefaultAgingState property of the DNS Server where the zone is created. For standard primary zones, the default value is zero.

AllowUpdate

Data type: uint32
Access type: Read-only

Indicates whether the Zone accepts dynamic update requests.

AutoCreated

Data type: boolean
Access type: Read-only

Indicates whether the Zone is autocreated.

AvailForScavengeTime

Data type: uint32
Access type: Read-only

Specifies the time when the server may attempt scavenging the zone. Even if the zone is configured to enable scavenging the DNS server will not attempt scavenging this zone until after this moment. This value is set to the current time plus the Refresh Interval of the zone whenever the zone is loaded. This parameter is stored locally, and is not replicated to other copies of the zone.

DataFile

Data type: string
Access type: Read-only

Indicates the name of the zone file.

DisableWINSRecordReplication

Data type: boolean
Access type: Read-only

Indicates whether the WINS record is replicated. If set to TRUE, WINS record replication is disabled.

DsIntegrated

Data type: boolean
Access type: Read-only

Specifies whether the zone is DS integrated.

ForwarderSlave

Data type: boolean
Access type: Read-only

Indicates whether the DNS uses recursion when resolving the names for the specified forward zone. Applicable to Conditional Forwarding zones only.

ForwarderTimeout

Data type: uint32
Access type: Read-only

Indicates the time, in seconds, a DNS server forwarding a query for the name under the forward zone waits for resolution from the forwarder before attempting to resolve the query itself. This parameter is applicable to the Forward zones only.

LastSuccessfulSoaCheck

Data type: uint32
Access type: Read-only

Number of seconds since the beginning of January 1, 1970 GMT, since the SOA serial number for the zone was last checked.

LastSuccessfulXfr

Data type: uint32
Access type: Read-only

Number of seconds since the beginning of January 1, 1970 GMT, since the zone was last transferred from a master server.

LocalMasterServers

Data type: string array
Access type: Read-only

Local IP addresses of the master DNS servers for this zone. If set, these masters over-ride the MasterServers found in Active Directory.

MasterServers

Data type: string array
Access type: Read-only

IP addresses of the master DNS servers for this zone.

NoRefreshInterval

Data type: uint32
Access type: Read-only

Specifies the time interval between the last update of a record's timestamp and the earliest moment when the timestamp can be refreshed.

Notify

Data type: uint32
Access type: Read-only

Indicates whether the master Zone notifies secondaries of any changes in its RRs database. Set to 1 to notify secondaries.

NotifyServers

Data type: string array
Access type: Read-only

Array of strings enumerating IP addresses of DNS servers to be notified of changes in this zone.

Paused

Data type: boolean
Access type: Read-only

Indicates whether the Zone is paused.

RefreshInterval

Data type: uint32
Access type: Read-only

Specifies the refresh interval, during which the records with nonzero timestamp are expected to be refreshed to remain in the zone. Records that have not been refreshed by expiration of the Refresh interval could be removed by the next scavenging performed by a server. This value should never be less than the longest refresh period of the records registered in the zone. Values that are too small may lead to removal of valid DNS records. values that are too large prolong the lifetime of stale records. This value is set to the DefaultRefreshInterval property of the DNS server where the zone is created.

Reverse

Data type: boolean
Access type: Read-only

Indicates whether the Zone is reverse (TRUE) or forward (FALSE).

ScavengeServers

Data type: string array
Access type: Read-only

Array of strings that enumerates the list of IP addresses of DNS servers that are allowed to perform scavenging of stale records of this zone. If the list is not specified, any primary DNS server authoritative for the zone is allowed to scavenge the zone when other prerequisites are met.

SecondaryServers

Data type: string array
Access type: Read-only

Array of strings enumerating IP addresses of DNS servers allowed to receive this zone through zone replication.

SecureSecondaries

Data type: uint32
Access type: Read-only

Indicates whether zone transfer is allowed to designated secondaries only. Designated secondaries are DNS Servers whose IP addresses are listed in SecondariesIPAddressesArray.

Shutdown

Data type: boolean
Access type: Read-only

Indicates whether the copy of the Zone is expired. If TRUE, the Zone is expired, or shut down.

UseWins

Data type: boolean
Access type: Read-only

Indicates whether the Zone uses WINS look up.

ZoneType

Data type: uint32
Access type: Read-only

Indicates the type of the Zone. Valid values are:

DS integrated
Primary
Secondary

Requirements

Minimum supported client	None supported
Minimum supported server	Windows 2000 Server
MOF	Dnsprov.mof
Namespace	\\.\Root\MicrosoftDNS

Syntax

Methods

Properties

Requirements

See Also