Script: *scan-ports.ps1* ======================== This PowerShell script scans the network for open or closed ports. Parameters ---------- ```powershell PS> ./scan-ports.ps1 [] [] This script supports the common parameters: Verbose, Debug, ErrorAction, ErrorVariable, WarningAction, WarningVariable, OutBuffer, PipelineVariable, and OutVariable. ``` Example ------- ```powershell PS> ./scan-ports ``` Notes ----- Author: Markus Fleschutz | License: CC0 Related Links ------------- https://github.com/fleschutz/PowerShell Script Content -------------- ```powershell <# .SYNOPSIS Scans the network for open/closed ports .DESCRIPTION This PowerShell script scans the network for open or closed ports. .EXAMPLE PS> ./scan-ports .LINK https://github.com/fleschutz/PowerShell .NOTES Author: Markus Fleschutz | License: CC0 #> $network = "192.168.178" $port = 8080 $range = 1..254 $ErrorActionPreference= "silentlycontinue" foreach($add in $range) { $ip = "{0}.{1}" -F $network,$add write-progress "Scanning IP $ip" -PercentComplete (($add/$range.Count)*100) if (Test-Connection -BufferSize 32 -Count 1 -quiet -ComputerName $ip) { $socket = new-object System.Net.Sockets.TcpClient($ip, $port) if ($socket.Connected) { write-output "TCP port $port at $ip is open" $socket.Close() } else { write-output "TCP port $port at $ip is not open" } } } exit 0 # success ``` *(generated by convert-ps2md.ps1 using the comment-based help of scan-ports.ps1 as of 05/19/2024 10:25:25)*