Test-DnsServer

Test-DnsServer

Tests that a specified computer is a functioning DNS server.

Syntax

Parameter Set: Context
Test-DnsServer [-IPAddress] <IPAddress[]> [[-Context] <String> ] [-AsJob] [-CimSession <CimSession[]> ] [-ComputerName <String> ] [-ThrottleLimit <Int32> ] [ <CommonParameters>]

Parameter Set: ZoneMaster
Test-DnsServer [-IPAddress] <IPAddress[]> -ZoneName <String> [-AsJob] [-CimSession <CimSession[]> ] [-ComputerName <String> ] [-ThrottleLimit <Int32> ] [ <CommonParameters>]

Detailed Description

The Test-DnsServer cmdlet tests whether a computer is a functioning Domain Name System (DNS) server. The DNS server must be running Windows Server® 2008 R2 operating system or above.

When you specify a computer by its IP address only, the cmdlet tests whether the computer is a DNS server. If you also specify a zone name, the cmdlet validates that the DNS server can resolve the specified zone.

Parameters

-AsJob

-CimSession<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.

-ComputerName<String>

Specifies a DNSserver. The acceptable values for this parameter are: an IP V4 address; an IP V6 address; any other value that resolves to an IP address, such as a fully qualified domain name (FQDN), host name, or NETBIOS name.

-Context<String>

Specifies functionalities to test. Valid values are: DnsServer, Forwarder , and RootHints.

-IPAddress<IPAddress[]>

Specifies an array of DNS server IP addresses.

-ThrottleLimit<Int32>

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.

-ZoneName<String>

Specifies the name of the zone that the server hosts.

<CommonParameters>

This cmdlet supports the common parameters: -Verbose, -Debug, -ErrorAction, -ErrorVariable, -OutBuffer, and -OutVariable. For more information, see    about_CommonParameters (https://go.microsoft.com/fwlink/p/?LinkID=113216).

Inputs

The input type is the type of the objects that you can pipe to the cmdlet.

Outputs

The output type is the type of the objects that the cmdlet emits.

• Microsoft.Management.Infrastructure.CimInstance#DnsServerValidity[]

Examples

Example 1: Test whether a DNS server is functional

This command tests whether the computer that has an IP address of 10.123.183.155 is a functional DNS server.

PS C:\> Test-DnsServer -IPAddress "10.123.183.155"

Example 2: Test whether a DNS server is functional and has valid configured forwarders

This command tests whether the computer that has an IP address of 10.123.183.155 is a functional DNS server that has valid configured forwarders.

PS C:\> Test-DnsServer -IPAddress "10.123.183.155" -Context Forwarder

Example 3: Test whether a DNS server is functional and has valid configured root hints

This command tests whether the computer that has an IP address of 10.123.183.155 is a functional DNS server that has valid configured root hints.

PS C:\> Test-DnsServer -IPAddress "10.123.183.155" -Context RootHints

Example 4: Test whether a DNS server is functional and hosts the Contoso.com zone

This command tests whether the computer that has an IP address of 10.123.183.155 is a functional DNS server that hosts the Contoso.com zone.

PS C:\> Test-DnsServer -IPAddress "10.123.183.155" -ZoneName "Contoso.com"

Related topics

Get-DnsServer

Set-DnsServer