RDP: Remote Desktop Protocol

Microsoft's protocol for connecting to a remote computer's desktop over a network
Technical Details:
Port: 3389
Protocol: TCP (UDP for transport in newer versions)
Introduction Date: 1998
Encrypted: Yes
Vendor: Microsoft

Uses:
- Remote administration of Windows servers
- Remote desktop access to work computers
- Virtual desktop infrastructure (VDI)
Notes:
- Open source clients and servers exist, such as FreeRDP and xrdp
- Exposing RDP directly to the internet is a common attack target; use a VPN or RD Gateway instead
- The default port 3389 is frequently scanned and brute forced

<--- Common TCP/UDP Ports