What is Port 3389 Used for: An In-Depth Guide to RDP Port

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3389 port number used for 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 port number for the RDP service to a different port number for both desktop versions of Windows and Windows Server..

3389 port is used for This article introduces the ports that need to be open on firewalls to configure Remote Desktop Services (RDS) correctly. The information and taxonomy are broken down by role, service, and component, and all inbound and outbound ports used are listed.

3389 com Remote Desktop Protocol (RDP) is a proprietary protocol developed by Microsoft to remotely connect to a Windows system using a graphical user interface. RDP is built into Windows by default. RDP listens on TCP port 3389 and udp port 3389. Previously, the RDP software was called Terminal Services client but now it’s called Remote Desktop Connection.