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Set-DnsServerGlobalQueryBlockList

Last Updated: 3/28/2017

SYNOPSIS

Changes settings of a global query block list.

SYNTAX

Set-DnsServerGlobalQueryBlockList [-Enable <Boolean>] [[-List] <String[]>] [-ComputerName <String>] [-PassThru]
 [-CimSession <CimSession[]>] [-ThrottleLimit <Int32>] [-AsJob] [-WhatIf] [-Confirm] [<CommonParameters>]

DESCRIPTION

The Set-DnsServerGlobalQueryBlockList cmdlet changes settings of a global query block list on a Domain Name System (DNS) server. This cmdlet replaces all names in the list of names that the DNS server does not resolve with the names that you specify.

If you need the DNS server to resolve names such as ISATAP and WPAD, remove these names from the list. Web Proxy Automatic Discovery Protocol (WPAD) and Intra-site Automatic Tunnel Addressing Protocol (ISATAP) are two commonly deployed protocols that are particularly vulnerable to hijacking.

EXAMPLES

Example 1: Replace the names in a global query block list

PS C:\> Set-DnsServerGlobalQueryBlockList -List "Isatap" -PassThru -Verbose
VERBOSE: Setting DNS server GlobalQueryBlockList on Fabrikam01 server.

VERBOSE: GlobalQueryBlockList successfully set on server Fabrikam01.
Enable : True

List   : {isatap}

This command replaces the existing host names in a global query block list that has the host name Isatap.

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.

Type: SwitchParameter
Parameter Sets: (All)
Aliases: 

Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: 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.

Type: CimSession[]
Parameter Sets: (All)
Aliases: Session

Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False

-ComputerName

Specifies a remote DNS server. 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.

Type: String
Parameter Sets: (All)
Aliases: Cn

Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False

-Confirm

Prompts you for confirmation before running the cmdlet.

Type: SwitchParameter
Parameter Sets: (All)
Aliases: cf

Required: False
Position: Named
Default value: False
Accept pipeline input: False
Accept wildcard characters: False

-Enable

Specifies whether the server enables support for the global query block list that blocks name resolution for names in the list. The DNS Server service creates and enables the global query block list by default the first time that the service starts.

When you disable the global query block list, the DNS Server service responds to queries for names in the block list. When you enable the global query block list, the DNS Server service does not respond to queries for names in the block list.

Type: Boolean
Parameter Sets: (All)
Aliases: 

Required: False
Position: Named
Default value: None
Accept pipeline input: True (ByPropertyName)
Accept wildcard characters: False

-List

Specifies an array of host names.

This cmdlet replaces the current global query block list with a list of the names that you specify. To add a name to the list, you must also include all existing names in the list. If you do not specify any names, the cmdlet clears the block list.

By default, the global query block list contains the following items: ISATAP and WPAD. The DNS Server service removes these names when it starts the first time if it finds these names in an existing zone. If you need the DNS server to resolve names such as ISATAP and WPAD, remove them from the list.

Type: String[]
Parameter Sets: (All)
Aliases: 

Required: False
Position: 1
Default value: None
Accept pipeline input: True (ByPropertyName)
Accept wildcard characters: False

-PassThru

Returns an object representing the item with which you are working. By default, this cmdlet does not generate any output.

Type: SwitchParameter
Parameter Sets: (All)
Aliases: 

Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: 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.

Type: Int32
Parameter Sets: (All)
Aliases: 

Required: False
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False

-WhatIf

Shows what would happen if the cmdlet runs. The cmdlet is not run.

Type: SwitchParameter
Parameter Sets: (All)
Aliases: wi

Required: False
Position: Named
Default value: False
Accept pipeline input: False
Accept wildcard characters: False

CommonParameters

This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose, -WarningAction, and -WarningVariable. For more information, see about_CommonParameters.

INPUTS

{

boolean EnableGlobalQueryBlockList; //Enables or disables support for the global query block list that blocks name resolution for names in the list. The DNS Server service creates and enables the global query block list by default when the service starts the first time.

string[] Names; //Replaces the current global query block list with a list of the names that you specify. If you do not specify any names, this command clears the block list.

}

OUTPUTS

Microsoft.Management.Infrastructure.CimInstance#DnsServerGlobalQueryBlockList

NOTES

Get-DnsServerGlobalQueryBlockList

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