Simple Network Authentication

<#

Purpose:    Validate network credentials, preventing lockouts.

Notes:            This is a pretty simple script, accepting only one parameter($Creds).

                  Store your credentials in a variable with Get-Credential, and pass it

                  to this function.

Caveat(s):  None that I am aware of.

#>

 

Function ValidateCredentials($Creds){

            Add-Type -AssemblyName System.DirectoryServices.AccountManagement

            $Info = $Creds.GetNetworkCredential()

            if($info.Domain -eq ''){

                  $info.Domain = $env:USERDOMAIN

                  }

            $TypeDomain = [System.DirectoryServices.AccountManagement.ContextType]::Domain

            Try{

                  $PC = New-Object System.DirectoryServices.AccountManagement.PrincipalContext $TypeDomain,$info.Domain

                  $PC.ValidateCredentials($info.UserName,$info.Password)

                  Write-Verbose ("Authentication Success")

                  }

            Catch{

                  Write-Error ("Authentication Failed")

                  }

            }