Winrm quesiton

Question

Hello, I have a question regarding winrm.

Is there any way to authentication with Winrm and this value '@{AllowUnencrypted="false"}' ?

I´d like to know if is possible the authentication with this value in false, authentication type kerberos via http.

Thanks.

Answer 1

Yes, it is possible to authenticate with WinRM (Windows Remote Management) using Kerberos authentication over HTTP and specify the option AllowUnencrypted as false. This setting ensures that only encrypted communication is allowed, enhancing security.

To achieve this, you would typically configure WinRM on the client and server to use Kerberos authentication and enable encryption. Here's how you can do it:

1. Configure WinRM on the Server: ensure that the HTTP listener is configured to use Kerberos authentication, and restart the WinRM service

      Set-Item -Path WSMan:\localhost\Service\Auth\Kerberos -Value $true
      Set-Item -Path WSMan:\localhost\Service\AllowUnencrypted -Value $false
      
      Set-Item -Path WSMan:\localhost\Service\Auth\Kerberos -Value $true
      
      Restart-Service WinRM
      
   

2. Configure WinRM on the Client:

      Set-Item -Path WSMan:\localhost\Client\AllowUnencrypted -Value $false
      Set-Item -Path WSMan:\localhost\Client\TrustedHosts -Value "ServerHostName"
   
   

After configuring WinRM on both the client and server, you should be able to authenticate using Kerberos over HTTP with encryption enforced (AllowUnencrypted set to false). Ensure that the client is allowed to communicate with the server (specified in TrustedHosts), and both machines are part of the same domain or in trusted domains for Kerberos authentication to work seamlessly.

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hth

Marcin