What is Port 3389? - CBT Nuggets

3389 port Port 3389 is used for Windows Remote Desktop and Remote Assistance connections (RDP) and is vulnerable to Denial of Service Attack. It is also used by Zmodo Geovision and other applications. See IANA registration, references, and security scan..

3389-no-hu  To use RDP, you need to open port 3389 on your Windows firewall and your router. This will allow incoming and outgoing traffic on that port and enable you to connect to your PC remotely. However, opening port 3389 also exposes your PC to potential attacks from hackers who can scan for open ports and try to break into your system.

3389-com  By default, Windows uses TCP port 3389 to connect to the desktop of a remote computer via the RDP (Remote Desktop Protocol). This article describes how to change the default…