With Outbound Port Scanner you can determine, which outbound ports aren’t blocked by your firewall.
This PowerShell tool is extremely helpful when you are behind firewall, and you are running service on a remote machine that you want to connect to it, but you are unable to find out which ports can be accessed and to which port to bind the service.
The Code:
You may want to select a port range (line 2).
The destination host listens on all TCP ports from 1 to 65535.
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#Select port range $portrange = 20..1000 #Open connection for each port from the range Foreach ($p in $portrange) { $Socket = New-Object Net.Sockets.TcpClient $ErrorActionPreference = 'SilentlyContinue' #Connect on the given port $Socket.Connect("178.33.250.62", $p) #Determine if the connection is established if ($Socket.Connected) { Write-Host "Outbound port $p is open." -ForegroundColor Green $Socket.Close() } else { Write-Host "Outbound port $p is closed or filtered."} } #end foreach |