DLConversionV2

2.9.6.3

get-ActiveDirectoryDomainName.ps1

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 <#
    .SYNOPSIS
 
    This function utilizes a distinguished domain to calculate an active directory domain name.
     
    .DESCRIPTION
 
    This function converts a distinguished name into active directory domain name.
 
    .PARAMETER DN
 
    The DN of the object to pass to normalize.
 
    .OUTPUTS
 
    The FQDN of the active directory domain.
 
    .EXAMPLE
 
    Get-activeDirectoryDomainName -dn $DN
 
    .CREDITS
 
    Credit to the following website - code adapted from this location.
    http://lanlith.blogspot.com/2014/06/powershell-get-domain-from.html
 
    #>
    Function get-activeDirectoryDomainName
     {
        [cmdletbinding()]

        Param
        (
            [Parameter(Mandatory = $true)]
            [string]$DN
        )

        #Output all parameters bound or unbound and their associated values.

        write-functionParameters -keyArray $MyInvocation.MyCommand.Parameters.Keys -parameterArray $PSBoundParameters -variableArray (Get-Variable -Scope Local -ErrorAction Ignore)

        #Declare function variables.

        [array]$functionSplitDomainName=@()
        [string]$functionCombinedDomainName=""

        #Start function processing.

        Out-LogFile -string "********************************************************************************"
        Out-LogFile -string "BEGIN GET-ActiveDirectoryDomainName"
        Out-LogFile -string "********************************************************************************"

        #Log the parameters and variables for the function.

        out-logfile -string ("DN to convert: "+$DN)

        Out-LogFile -string "Converting the distringuished name."

        $functionSplitDomainName = $dn -Split "," | ? {$_ -like "DC=*"}

        foreach ($component in $functionSplitDomainName)
        {
            out-logfile -string $component
        }

        $functionCombinedDomainName = $functionSplitDomainName -join "." -replace ("DC=", "")

        out-logfile -string ("The FQDN of the object based on DN: "+$functionCombinedDomainName)

        Out-LogFile -string "END GET-ActiveDirectoryDomainName"
        Out-LogFile -string "********************************************************************************"
        
        #This function is designed to open local and remote powershell sessions.
        #If the session requires import - for example exchange - return the session for later work.
        #If not no return is required.
        
        return $functionCombinedDomainName
    }