Hostname to IP address

 $location = Read-Host "CSV Path: "

$Names = Import-Csv -Path $location

foreach($n in $Names)

{

    try {

        $Computer = [system.net.dns]::resolve($n.NAME) | Select HostName,AddressList 

        $IP = ($Computer.AddressList).IPAddressToString

        New-Object PSObject -Property @{IPAddress=$IP; Name=$Computer.HostName} | Export-Csv \\filepath\Working.csv -NoTypeInformation -Append

    } catch {

        Write-Host "$($n.NAME) is unreachable."

        Write-Output $n | Export-Csv \\Filepath\Unreachable.csv -Append -Encoding ASCII

    }

}

Fetch DNS Name along with IP Address

 $Servers = Get-Content -Path "C:\users\$env:username\desktop\servers.txt"

$Array = @()

 

Foreach($Server in $Servers)

{

    $DNSCheck = $null

    $Server = $Server.trim()

 

    $DNSCheck = ([System.Net.Dns]::GetHostByName(("$Server")))

 

    $Object = New-Object PSObject -Property ([ordered]@{ 

      

                "Server name"             = $Server

                "FQDN"                    = $DNSCheck.hostname

                "IP Address"              = $DNSCheck.AddressList[0]

 

    })

   

    # Add object to our array

    $Array += $Object

 

}

$Array

$Array | Export-Csv -Path C:\users\$env:username\desktop\results.csv -NoTypeInformation