How to Open Ports in Windows RDP?

Step 1: Ensure Firewall Rule for Your Desired Port

Run PowerShell (Admin) by:

• Press Win + X and select Windows PowerShell (Admin) from the menu.
• Alternatively, press Win + R, type powershell, then press Ctrl + Shift + Enter to open PowerShell as Administrator.

Execute the following command to allow your desired port (in this example, port 3000):

New-NetFirewallRule -DisplayName "Allow Port 3000" -Direction Inbound -Protocol TCP -LocalPort 3000 -Action Allow

Note: Replace 3000 with your actual desired port number.

Step 2: Bind the Desired Port to All Network Interfaces

Run Command Prompt (Admin) by:

• Press Win + X and select Command Prompt (Admin) from the menu.
• Alternatively, press Win + R, type cmd, then press Ctrl + Shift + Enter to open Command Prompt as Administrator.

Now, bind your desired port (3000 in this case) to all network interfaces by executing the following command:

netsh interface portproxy add v4tov4 listenaddress=0.0.0.0 listenport=3000 connectaddress=127.0.0.1 connectport=3000

Note: Replace 3000 with your actual desired port number.

Step 3: Check If Your Desired Port is Open

To verify if your desired port (3000 in this case) is open, run the following command:

netstat -ano | findstr :3000

If the port does not show as LISTENING, restart the server:

shutdown /r /t 0

Step 4: Test From Another Device

On another computer, run the following command to test if the port is open:

telnet <your-server-ip> 3000

If it connects, the port is fully open!

Note: Replace <your-server-ip> with your actual server IP address and 3000 with your desired port number.

If the telnet command is not found, you can enable the Telnet Client by following these steps:

• Press Win + R, type optionalfeatures.exe, and press Enter.
• In the “Windows Features” dialog, scroll down and check Telnet Client.
• Click OK to install Telnet.
• Once installed, try the telnet command again.