port 3389 open Port 3389 là cổng mặc định cho Remote Desktop. Hướng dẫn mở cổng trên tường lửa Windows để bảo đảm kết nối từ xa hiệu quả..
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Since RDP port 3389 is the default for using the Remote Desktop, you need to open the port if you want to perform a remote session. Let's talk about how to open the port to make your device RDP accessible in two cases: on the LAN or outside the network.
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Open a command prompt Type in “telnet ” and press enter. For example, we would type “telnet 192.168. 8.1 3389” If a blank screen appears then the port is open, and the test is successful.Try netstat command on Windows system. Open Windows command prompt and type the following commands: netstat -aon | find /i “listening” See if port 3389 is open netstat -aon | find /i “listening ...