Get a list of IPs VIA System.Net.Dns

So needed to look up more IPs via scripts again. The last script I used worked great but didn't grab everything because of the environment I am in. So I took the rest of the systems I needed IPs for and noticed I could use nslookup to get the IPs. Of course nslookup is not made for automation so I went looking again. And again powershell came to the rescue.

In the System.Net.Dns Class.

The script i found came from this website.
http://community.spiceworks.com/scripts/show/1201-powershell-script-dns-forward-lookup-script-with-auto-generate-excel-file

Here is the script from that page. It basically grabs a list of names, or ips from text file you supply and it spits back out into an excel document.. SWEEET...

 ###########################################################################
#
# NAME: DNS Forward Lookup Script with Auto Generate Excel File
#
# AUTHOR: J.Malek (www.malekjakir.com) Email: malek dot one zero four zero at gmail dot com
#
# COMMENT: This script can be used to check list of Servers for Forward NSLookup to get the IP Addresses.
# Line#29 - Please Change the path of Servers.txt to your file location.
# NOTE: One server name per line.
#
# VERSION HISTORY:
# 1.0 2/17/2012 -
#
###########################################################################
$ErrorActionPreference = "silentlycontinue"

$a = New-Object -comobject Excel.Application
$a.visible = $True
$b = $a.Workbooks.Add()
$c = $b.Worksheets.Item(1)
$c.Cells.Item(1,1) = "Server Hostname"
$c.Cells.Item(1,2) = "IP Address"
$d = $c.UsedRange
$d.Interior.ColorIndex = 19
$d.Font.ColorIndex = 11
$d.Font.Bold = $True
$intRow = 2

$colComputers = get-content "C:\SCRIPTS\DNS_Lookup\ForwardLookup\Servers.txt"
foreach ($strComputer in $colComputers)
{
$FWDIP = [System.Net.Dns]::GetHostAddresses($strComputer) | Add-Member -Name HostName -Value $strComputer -MemberType NoteProperty -PassThru | Select HostName, IPAddressToString

$c.Cells.Item($intRow,1) = $FWDIP.Hostname
$c.Cells.Item($intRow,2) = $FWDIP.IPAddressToString
$intRow = $intRow + 1
}
$d.EntireColumn.AutoFit()
cls
Write-Host "######## This Script is completed now ########"

Thank you internet..