ping_dns_name.ps1

# this script will find any pingable machine in a specified range and then list the DNS name of that IP
$ErrorActionPreference = "Stop"
$ping = New-Object System.Net.NetworkInformation.Ping 
$i = 0 
1..255 | foreach { $ip = "192.168.1.$_"  
$Res = $ping.send($ip) 
 
if ($Res.Status -eq "Success") 
 { 
 
 $result = $ip + " = Success" 

   Write-Host $result 
   
    try{
        nslookup $ip | findstr Name:
        }
        
 catch {
         Write-Warning "$ip - Can't find DNS record"
        }
   $i++ 
 } 
 
}  
$Hosts = [string]$i + " Hosts is pingable" 
Write-Host $Hosts 

#$error[0].Exception.GetType().FullName use to find the exact error powershell throws