<# .SYNOPSIS Sends a TCP message to the given IP address and port .DESCRIPTION send-tcp.ps1 [] [] [] .EXAMPLE PS> ./send-tcp 192.168.100.100 8080 "TEST" .NOTES Author: Markus Fleschutz · License: CC0 .LINK https://github.com/fleschutz/PowerShell #> param([string]$TargetIP = "", [int]$TargetPort = 0, [string]$Message = "") try { if ($TargetIP -eq "" ) { $TargetIP = read-host "Enter target IP address" } if ($TargetPort -eq 0 ) { $TargetPort = read-host "Enter target port" } if ($Message -eq "" ) { $Message = read-host "Enter message to send" } $IP = [System.Net.Dns]::GetHostAddresses($TargetIP) $Address = [System.Net.IPAddress]::Parse($IP) $Socket = New-Object System.Net.Sockets.TCPClient($Address,$TargetPort) $Stream = $Socket.GetStream() $Writer = New-Object System.IO.StreamWriter($Stream) $Message | % { $Writer.WriteLine($_) $Writer.Flush() } $Stream.Close() $Socket.Close() "✔️ Done." exit 0 # success } catch { "⚠️ Error: $($Error[0]) ($($MyInvocation.MyCommand.Name):$($_.InvocationInfo.ScriptLineNumber))" exit 1 }