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<# Basic Port Scanner Example useage: PowerShell -ExecutionPolicy Bypass .\scanner.ps1
PowerShell -ExecutionPolicy Bypass .\scanner.ps1 192.168.1.1 20 30 #> $ErrorActionPreference= 'silentlycontinue' #ignore errors #check for user input if($args[0]){ $ip = $args[0] }else{ write-host "IP Address needed!!!" exit } if($args[2]){ $ports = $args[1]..$args[2] }else{ write-host "port range needed!!!" exit } foreach ($port in $ports){ write-host "Scanning $ip port $port..." -NoNewline if(Test-Connection -BufferSize 32 -Count 1 -Quiet -ComputerName $ip){ $socket = new-object System.Net.Sockets.TcpClient($ip, $port) If($socket.Connected){ $socket.Close() write-host "`r$ip port $port is open." -foregroundcolor "red" #if port open output } } write-host "`r" -NoNewline #clear line is port not open }
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