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Test-WSMan

  • Reference
Module:
Microsoft.WSMan.Management

Tests whether the WinRM service is running on a local or remote computer.

Syntax

Test-WSMan
    [[-ComputerName] <String>]
    [-Authentication <AuthenticationMechanism>]
    [-Port <Int32>]
    [-UseSSL]
    [-ApplicationName <String>]
    [-Credential <PSCredential>]
    [-CertificateThumbprint <String>]
    [<CommonParameters>]

Description

This cmdlet is only available on the Windows platform.

The Test-WSMan cmdlet submits an identification request that determines whether the WinRM service is running on a local or remote computer. If the tested computer is running the service, the cmdlet displays the WS-Management identity schema, the protocol version, the product vendor, and the product version of the tested service.

Examples

Example 1: Determine the status of the WinRM service

Test-WSMan

This command determines whether the WinRM service is running on the local computer or on a remote computer.

Example 2: Determine the status of the WinRM service on a remote computer

Test-WSMan -ComputerName "server01"

This command determines whether the WinRM service is running on the server01 computer.

Example 3: Determine the status of the WinRM service and the operating system version

Test-WSMan -Authentication default

This command tests to see whether the WS-Management (WinRM) service is running on the local computer by using the authentication parameter.

Using the authentication parameter enables Test-WSMan to return the operating system version.

Example 4: Determine the status of the WinRM service and the OS version on a remote computer

Test-WSMan -ComputerName "server01" -Authentication default

This command tests to see whether the WS-Management (WinRM) service is running on the computer named server01 using the authentication parameter.

Using the authentication parameter enables Test-WSMan to return the operating system version.

Parameters

-ApplicationName

Specifies the application name in the connection. The default value of the ApplicationName parameter is WSMAN. The complete identifier for the remote endpoint is in the following format:

<Transport>://<Server>:<Port>/<ApplicationName>

For example: http://server01:8080/WSMAN

Internet Information Services (IIS), which hosts the session, forwards requests with this endpoint to the specified application. This default setting of WSMAN is appropriate for most uses. This parameter is designed to be used if many computers establish remote connections to one computer that is running Windows PowerShell. In this case, IIS hosts Web Services for Management (WS-Management) for efficiency.

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

-Authentication

Specifies the authentication mechanism to be used at the server. The acceptable values for this parameter are:

  • Basic - Basic is a scheme in which the user name and password are sent in clear text to the server or proxy.
  • Default - Use the authentication method implemented by the WS-Management protocol. This is the default.
  • 1 - Digest is a challenge-response scheme that uses a server-specified data string for the challenge.
  • Kerberos - The client computer and the server mutually authenticate by using Kerberos certificates.
  • Negotiate - Negotiate is a challenge-response scheme that negotiates with the server or proxy to determine the scheme to use for authentication. For example, this parameter value allows for negotiation to determine whether the Kerberos protocol or NTLM is used.
  • CredSSP - Use Credential Security Support Provider (CredSSP) authentication, which lets the user delegate credentials. This option is designed for commands that run on one remote computer but collect data from or run additional commands on other remote computers.

Caution

CredSSP delegates the user credentials from the local computer to a remote computer. This practice increases the security risk of the remote operation. If the remote computer is compromised, when credentials are passed to it, the credentials can be used to control the network session.

Important

If you do not specify the Authentication parameter, the Test-WSMan request is sent to the remote computer anonymously, without using authentication. If the request is made anonymously, it returns no information that is specific to the operating-system version. Instead, this cmdlet displays null values for the operating system version and service pack level (OS: 0.0.0 SP: 0.0).

Type:AuthenticationMechanism
Aliases:auth, am
Accepted values:None, Default, Digest, Negotiate, Basic, Kerberos, ClientCertificate, Credssp
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-CertificateThumbprint

Specifies the digital public key certificate (X509) of a user account that has permission to perform this action. Enter the certificate thumbprint of the certificate.

Certificates are used in client certificate-based authentication. They can be mapped only to local user accounts; they do not work with domain accounts.

To get a certificate thumbprint, use the Get-Item or Get-ChildItem command in the Windows PowerShell Cert: drive.

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

-ComputerName

Specifies the computer against which to run the management operation. The value can be a fully qualified domain name, a NetBIOS name, or an IP address. Use the local computer name, use localhost, or use a dot (.) to specify the local computer. The local computer is the default. When the remote computer is in a different domain from the user, you must use a fully qualified domain name must be used. You can pipe a value for this parameter to the cmdlet.

Type:String
Aliases:cn
Position:0
Default value:None
Required:False
Accept pipeline input:True
Accept wildcard characters:False

-Credential

Specifies a user account that has permission to perform this action. The default is the current user. Type a user name, such as User01, Domain01\User01, or User@Domain.com. Or, enter a PSCredential object, such as one returned by the Get-Credential cmdlet. When you type a user name, this cmdlet prompts you for a password.

Type:PSCredential
Aliases:cred, c
Position:Named
Default value:None
Required:False
Accept pipeline input:True
Accept wildcard characters:False

-Port

Specifies the port to use when the client connects to the WinRM service. When the transport is HTTP, the default port is 80. When the transport is HTTPS, the default port is 443.

When you use HTTPS as the transport, the value of the ComputerName parameter must match the server's certificate common name (CN).

Type:Int32
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-UseSSL

Specifies that the Secure Sockets Layer (SSL) protocol is used to establish a connection to the remote computer. By default, SSL is not used.

WS-Management encrypts all the Windows PowerShell content that is transmitted over the network. The UseSSL parameter lets you specify the additional protection of HTTPS instead of HTTP. If SSL is not available on the port that is used for the connection, and you specify this parameter, the command fails.

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

Inputs

None

You can't pipe objects to this cmdlet.

Outputs

XmlElement

This cmdlet returns an XmlElement object representing the result of the test.

Notes

By default, the Test-WSMan cmdlet queries the WinRM service without using authentication, and it returns no information that is specific to the operating-system version. Instead, it displays null values for the operating system version and service pack level (OS: 0.0.0 SP: 0.0).