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PowerShell ASP: Using Invoke-Command with New-PSSession

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18 Apr 2012CPOL
In order to use the Invoke -Command with the New-PSSession cmdlet you will need to have the proper credentials set.

In order to use the Invoke -Command with the New-PSSession cmdlet you will need to have the proper credentials set.

The credential parameter in Powershell taks a PSCredential object. Normally you would prompt a user to enter the information in a dialog and then save the response as a PSCredential object using the Get-Credential cmdlet. Of course in PowerShell ASP that's not an option. We can get around this by just setting the credentials manually in a PowerShell script:

$securePassword = ConvertTo-SecureString "Password" -AsPlainText -force 
$credential = New-Object System.Management.Automation.PsCredential("domain\username",$securePassword)

After speicfiying your credentails you can then use them in your call to create a New-PSSession Using the PowerShell script below.

$session = New-PSSession -computername hostname -credential $cred

Below is an example of a complete PowerShell ASP page:

<html>
	<title>Test</title> 
	<body> 
	<pre> 
	<% 
		$securePassword = ConvertTo-SecureString "Password" -AsPlainText -force 
		$credential = New-Object System.Management.Automation.PsCredential("domain\username",$securePassword)  
		$session = New-PSSession -computername hostname -credential $cred 
		$command = {ls} 
		$res = Invoke-Command -session $session -scriptblock $command 
		foreach($item in $res){ 	
			Write-Host("Mode: " + $item.Mode) 
			Write-Host("Last Write Time: " + $item.LastWriteTime) 
			Write-Host("Length: " + $item.Length) 
			Write-Host("Name: " + $item.Name) 
			Write-Host("<hr/>") 
		}	 

	%> 
	</pre> 
	</body> 
</html>

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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Eric M
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Technical Blog
Posted 18 Apr 2012

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