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# Function to check if a port is open using Test-NetConnection function Check-Port { param ( [string]$domain, [int]$port, [string]$protocol ) # For UDP protocol, we use Test-NetConnection with the -UdpPort parameter if ($protocol -eq "UDP") { $result = Test-NetConnection -ComputerName $domain -Port $port -UdpPort -WarningAction SilentlyContinue } else { $result = Test-NetConnection -ComputerName $domain -Port $port -WarningAction SilentlyContinue } # Check if the port is open or blocked if ($protocol -eq "TCP" -and $result.TcpTestSucceeded -eq $false) { $script:blocked_ports += "$domain ($protocol): $port" } elseif ($protocol -eq "UDP" -and $result.UdpTestSucceeded -eq $false) { $script:blocked_ports += "$domain ($protocol): $port" } } # Initialize blocked_ports array $script:blocked_ports = @() # Total number of ports to check $total_ports = 1 + 2 + (65535 - 49152 + 1) # STUN + 2 signaling + UDP range $current_port = 0 # Check STUN/TURN Servers $stun_ports = @(3478) foreach ($port in $stun_ports) { $current_port++ Write-Host "[$current_port/$total_ports] Checking STUN port $port..." Check-Port -domain "remoteviewer.esper.cloud" -port $port -protocol "TCP" } # Check Signaling Ports $signaling_ports = @(80, 443) foreach ($port in $signaling_ports) { $current_port++ Write-Host "[$current_port/$total_ports] Checking signaling port $port..." Check-Port -domain "status.esper.cloud" -port $port -protocol "TCP" } # Check Media Ports (Dynamic Range) foreach ($port in 49152..65535) { $current_port++ Write-Host "[$current_port/$total_ports] Checking UDP port $port..." Check-Port -domain "remoteviewer.esper.cloud" -port $port -protocol "UDP" } # Final output Write-Host # Display blocked ports if any if ($script:blocked_ports.Count -eq 0) { Write-Host "Port checking complete: all ports are open. 🎉" } else { Write-Host "Port checking complete: Blocked or unreachable ports:" foreach ($port in $script:blocked_ports) { Write-Host "❌ $port" } }
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