The Add-DnsServerConditionalForwarderZone cmdlet adds a conditional forwarder to a Domain Name System (DNS) server.
You can select the master servers, forwarder time-out, recursion, host computer, replication scope, and directory partition for the conditional forwarder.
Conditional forwarders are stored as zones on a DNS server.
Examples
Example 1: Create a non-Active Directory-integrated forwarder
This command creates a conditional forwarder zone called contoso.com.
The entries are stored in the registry.
The command includes IP addresses for one or more master DNS servers.
The command uses the PassThru parameter.
Example 2: Create an Active Directory-integrated forwarder
This command creates an Active Directory-integrated conditional forwarder zone for contoso.com.
The command specifies IP addresses for one or more master DNS servers.
Parameters
-AsJob
Runs the cmdlet as a background job. Use this parameter to run commands that take a long time to complete.
The cmdlet immediately returns an object that represents the job and then displays the command prompt.
You can continue to work in the session while the job completes.
To manage the job, use the *-Job cmdlets.
To get the job results, use the Receive-Job cmdlet.
For more information about Windows PowerShell background jobs, see about_Jobs.
Parameter properties
Type:
SwitchParameter
Default value:
None
Supports wildcards:
False
DontShow:
False
Parameter sets
(All)
Position:
Named
Mandatory:
False
Value from pipeline:
False
Value from pipeline by property name:
False
Value from remaining arguments:
False
-CimSession
Runs the cmdlet in a remote session or on a remote computer.
Enter a computer name or a session object, such as the output of a New-CimSession or Get-CimSession cmdlet.
The default is the current session on the local computer.
Parameter properties
Type:
CimSession[]
Default value:
None
Supports wildcards:
False
DontShow:
False
Aliases:
Session
Parameter sets
(All)
Position:
Named
Mandatory:
False
Value from pipeline:
False
Value from pipeline by property name:
False
Value from remaining arguments:
False
-ComputerName
Specifies the DNS server.
The cmdlet adds the forwarder to this server.
If you do not specify this parameter, the command runs on the local system.
You can specify an IP address or any value that resolves to an IP address, such as a fully qualified domain name (FQDN), host name, or NETBIOS name.
Parameter properties
Type:
String
Default value:
None
Supports wildcards:
False
DontShow:
False
Aliases:
Cn
Parameter sets
(All)
Position:
Named
Mandatory:
False
Value from pipeline:
False
Value from pipeline by property name:
False
Value from remaining arguments:
False
-Confirm
Prompts you for confirmation before running the cmdlet.
Parameter properties
Type:
SwitchParameter
Default value:
False
Supports wildcards:
False
DontShow:
False
Aliases:
cf
Parameter sets
(All)
Position:
Named
Mandatory:
False
Value from pipeline:
False
Value from pipeline by property name:
False
Value from remaining arguments:
False
-DirectoryPartitionName
Specifies a directory partition on which to store the forwarder.
Conditional forwarders are internally stored as zones.
Use this parameter when the ReplicationScope parameter has a value of Custom.
Parameter properties
Type:
String
Default value:
None
Supports wildcards:
False
DontShow:
False
Parameter sets
ADForwardLookupZone
Position:
Named
Mandatory:
False
Value from pipeline:
False
Value from pipeline by property name:
True
Value from remaining arguments:
False
-ForwarderTimeout
Specifies a length of time, in seconds, that a DNS server waits for a master server to resolve a query.
If a server does not resolve the request, the next server in the list is queried until all master servers are queried.
After this period, the DNS server can attempt to resolve the query itself.
This parameter applies only to the forwarder zone.
The minimum value is 0.
The maximum value is 15.
Parameter properties
Type:
UInt32
Default value:
None
Supports wildcards:
False
DontShow:
False
Parameter sets
(All)
Position:
3
Mandatory:
False
Value from pipeline:
False
Value from pipeline by property name:
True
Value from remaining arguments:
False
-LoadExisting
Indicates that the server loads existing data for the forwarder from the registry.
Conditional forwarders are internally stored as zones.
This parameter is not valid for Active Directory-integrated zones.
Parameter properties
Type:
SwitchParameter
Default value:
None
Supports wildcards:
False
DontShow:
False
Parameter sets
(All)
Position:
Named
Mandatory:
False
Value from pipeline:
False
Value from pipeline by property name:
True
Value from remaining arguments:
False
-MasterServers
Specifies an array of IP addresses of the master servers of the zone.
DNS queries for a forwarded zone are sent to master servers.
You can use both IPv4 and IPv6 addresses.
You must specify at least one master server.
Parameter properties
Type:
IPAddress[]
Default value:
None
Supports wildcards:
False
DontShow:
False
Parameter sets
(All)
Position:
2
Mandatory:
True
Value from pipeline:
False
Value from pipeline by property name:
True
Value from remaining arguments:
False
-Name
Specifies the name of a zone.
The cmdlet adds a conditional forwarder for this zone.
Parameter properties
Type:
String
Default value:
None
Supports wildcards:
False
DontShow:
False
Aliases:
ZoneName
Parameter sets
(All)
Position:
1
Mandatory:
True
Value from pipeline:
False
Value from pipeline by property name:
True
Value from remaining arguments:
False
-PassThru
Returns an object representing the item with which you are working.
By default, this cmdlet does not generate any output.
Parameter properties
Type:
SwitchParameter
Default value:
None
Supports wildcards:
False
DontShow:
False
Parameter sets
(All)
Position:
Named
Mandatory:
False
Value from pipeline:
False
Value from pipeline by property name:
False
Value from remaining arguments:
False
-ReplicationScope
Specifies the replication scope for the conditional forwarder.
Conditional forwarders are stored internally as zones.
The acceptable values for this parameter are:
Custom.
Replicate the conditional forwarder to all DNS servers running on domain controllers enlisted in a custom directory partition.
Domain.
Replicate the conditional forwarder to all DNS servers that run on domain controllers in the domain.
Forest.
Replicate the conditional forwarder to all DNS servers that run on domain controllers in the forest.
Legacy.
Replicate the conditional forwarder to all domain controllers in the domain.
Parameter properties
Type:
String
Default value:
None
Accepted values:
Forest, Domain, Legacy, Custom
Supports wildcards:
False
DontShow:
False
Parameter sets
ADForwardLookupZone
Position:
Named
Mandatory:
False
Value from pipeline:
False
Value from pipeline by property name:
True
Value from remaining arguments:
False
-ThrottleLimit
Specifies the maximum number of concurrent operations that can be established to run the cmdlet.
If this parameter is omitted or a value of 0 is entered, then Windows PowerShell® calculates an optimum throttle limit for the cmdlet based on the number of CIM cmdlets that are running on the computer.
The throttle limit applies only to the current cmdlet, not to the session or to the computer.
Parameter properties
Type:
Int32
Default value:
None
Supports wildcards:
False
DontShow:
False
Parameter sets
(All)
Position:
Named
Mandatory:
False
Value from pipeline:
False
Value from pipeline by property name:
False
Value from remaining arguments:
False
-UseRecursion
Specifies whether a DNS server attempts to resolve a query after the forwarder fails to resolve it.
A value of $False prevents a DNS server from attempting resolution using other DNS servers.
This parameter overrides the Use Recursion setting for a DNS server.
Parameter properties
Type:
SwitchParameter
Default value:
None
Supports wildcards:
False
DontShow:
False
Parameter sets
(All)
Position:
Named
Mandatory:
False
Value from pipeline:
False
Value from pipeline by property name:
True
Value from remaining arguments:
False
-WhatIf
Shows what would happen if the cmdlet runs.
The cmdlet is not run.
Parameter properties
Type:
SwitchParameter
Default value:
False
Supports wildcards:
False
DontShow:
False
Aliases:
wi
Parameter sets
(All)
Position:
Named
Mandatory:
False
Value from pipeline:
False
Value from pipeline by property name:
False
Value from remaining arguments:
False
CommonParameters
This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable,
-InformationAction, -InformationVariable, -OutBuffer, -OutVariable, -PipelineVariable,
-ProgressAction, -Verbose, -WarningAction, and -WarningVariable. For more information, see
about_CommonParameters.