PowerShell/Scripts/scan-ports.ps1

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<#
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.SYNOPSIS
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Scans the network for open/closed ports
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.DESCRIPTION
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This script scans the network for open or closed ports
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.EXAMPLE
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PS> ./scan-ports
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.NOTES
Author: Markus Fleschutz · License: CC0
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.LINK
https://github.com/fleschutz/PowerShell
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#>
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$network = "192.168.178"
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$port = 8080
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$range = 1..254
$ErrorActionPreference= "silentlycontinue"
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foreach($add in $range) {
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$ip = "{0}.{1}" -F $network,$add
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write-progress "Scanning IP $ip" -PercentComplete (($add/$range.Count)*100)
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if (Test-Connection -BufferSize 32 -Count 1 -quiet -ComputerName $ip) {
$socket = new-object System.Net.Sockets.TcpClient($ip, $port)
if ($socket.Connected) {
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write-output "TCP port $port at $ip is open"
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$socket.Close()
} else {
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write-output "TCP port $port at $ip is not open"
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}
}
}
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exit 0 # success