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Script that pings machine hostname in a list and replys with IP address

i need a script that pings hostnames in a list and returns with IP address even if its not up
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Jorge Ocampo
Asked:
Jorge Ocampo
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1 Solution
 
becraigCommented:
$report = @()
gc serverlist.txt | % {
	$server = $_
	$ips = [System.Net.Dns]::GetHostAddresses($server).IPAddressToString
	if (Test-Connection $server) { $compstate = "ONLINE" }
	else { $compstate = "OFFLINE"}
	$ips | % {
		$ip = $_
		$item = New-Object PSObject
		$item | Add-Member -type NoteProperty -Name 'SERVER' -Value $server
		$item | Add-Member -type NoteProperty -Name 'STATE' -Value $compstate
		$item | Add-Member -type NoteProperty -Name 'IPADDRESS' -Value $ip
		$report += $item
		
	}
	$report | Export-Csv c:\report.csv -NTI

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Jorge OcampoAuthor Commented:
how would i tell it the location of my list?
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becraigCommented:
gc serverlist.txt

you change serverlist.txt to the full path of whatever your input file is.

e.g.  gc c:\somefile.txt
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Jorge OcampoAuthor Commented:
do i save ps1? because i try to run in powershell
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becraigCommented:
yes save it as a ps1 and run.
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Jorge OcampoAuthor Commented:
At C:\Users\jocampo\Desktop\test.ps1:2 char:23
+ gc c:\\server.txt | % {
+                       ~
Missing closing '}' in statement block.
    + CategoryInfo          : ParserError: (:) [], ParentContainsErrorRecordException
    + FullyQualifiedErrorId : MissingEndCurlyBrace
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becraigCommented:
copy paste issue :(

$report = @()
gc serverlist.txt | % {
	$server = $_
	$ips = [System.Net.Dns]::GetHostAddresses($server).IPAddressToString
	if (Test-Connection $server) { $compstate = "ONLINE" }
	else { $compstate = "OFFLINE" }
	$ips | % {
		$ip = $_
		$item = New-Object PSObject
		$item | Add-Member -type NoteProperty -Name 'SERVER' -Value $server
		$item | Add-Member -type NoteProperty -Name 'STATE' -Value $compstate
		$item | Add-Member -type NoteProperty -Name 'IPADDRESS' -Value $ip
		$report += $item
		
	}
}
$report | Export-Csv c:\report.csv -NTI

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Jorge OcampoAuthor Commented:
NICE :)
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Jorge OcampoAuthor Commented:
so it actually return the report with same IP for multiple servers that if i did a ping it could find anything

172.17.2.84
172.17.2.84
172.17.2.84
172.17.2.84
172.17.2.84
172.17.2.84
172.17.2.84
172.17.2.84
172.17.2.84
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becraigCommented:
My first thought would be that there are multiple dns entries for the same ip.

However there is one way to verify if we need to change something.

For one of the computers in the list, simply run:
nslookup computername 

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from a command prompt and see what ip it returns, whether it matches with the report or not.
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Jorge OcampoAuthor Commented:
wouldnt it only return the domain controller?

i did two and it doesnt match what is in the report
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becraigCommented:
No it would not so let me break down the script for you:

1.  We populate an array from your list of computers, then loop through that array:
gc serverlist.txt | % {

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2. We assign a variable name of $server to each computer in the array:
$server = $_

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3.  We populate a new array name $ips with all the ip addresses returned for the computer name value in the variable $server:
$ips = [System.Net.Dns]::GetHostAddresses($server).IPAddressToString

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4: We loop through that array and create the labels and report values based on the current iteration of the loop:
	$ips | % {
		$ip = $_
		$item = New-Object PSObject
		$item | Add-Member -type NoteProperty -Name 'SERVER' -Value $server
		$item | Add-Member -type NoteProperty -Name 'STATE' -Value $compstate
		$item | Add-Member -type NoteProperty -Name 'IPADDRESS' -Value $ip
		$report += $item
		
	}

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5. We then export that information to a csv file:

$report | Export-Csv c:\report.csv -NTI

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So unless the values returned by the population of the $ips array are not correct, then you should be seeing the correct vales in the report.
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