[Update 16-05-2009 – Format update]
So I found myself in need of a tool which could check whether or not one or more ports are open on a large amount of servers.
I ended up with this in powershell:
param([string]$list1,[string]$list2) if ($list1 -eq ""){ Write-Host "Please supply Host-list!!" -ForegroundColor Red break } If ($list2 -eq ""){ Write-Host "Please supply Port-List!!" -ForegroundColor Red break } [Array]$hostlist = Get-Content $list1 [Array]$ports = Get-Content $list2 $ErrorActionPreference = "SilentlyContinue" $ping = new-object System.Net.NetworkInformation.Ping foreach ($ip in $hostlist) { $rslt = $ping.send($ip) if (! $?){ Write-Host "Host: $ip - not found" -ForegroundColor Red } else { if ($rslt.status.tostring() –eq “Success”) { write-host "Host: $ip - Ports: " -foregroundColor Green -NoNewline foreach ($port in $ports){ $socket = new-object System.Net.Sockets.TcpClient($ip, $port) if ($socket –eq $null) { write-host "$port," -ForegroundColor Red -NoNewline } else { write-host "$port,"-foregroundcolor Green -NoNewline $socket = $null } } } else { write-host "Host: $ip - down" -ForegroundColor Red } } Write-Host "" } $ping = $null
The script is executed in the following manner:
[ ] PS> .\script.ps1 hostlist.txt portlist.txt
In this version, the output of the script is not suited to be piped to a file, as port status is indicated with color.