// REFERENCE
Port 3389 (RDP)
Protocol: TCP/UDP
Service: RDP
High risk
RDP: Windows remote desktop. One of ransomware's favorite entry points (brute force, BlueKeep). Don't expose it: put it behind a VPN, use NLA and 2FA.
Related tools
Work with this in:
Related
22
Port 22 (SSH) 23
Port 23 (Telnet) 1194
Port 1194 (OpenVPN) 1723
Port 1723 (PPTP VPN) 2222
Port 2222 (alternate SSH) 5900
Port 5900 (VNC)
Port 22 (SSH) 23
Port 23 (Telnet) 1194
Port 1194 (OpenVPN) 1723
Port 1723 (PPTP VPN) 2222
Port 2222 (alternate SSH) 5900
Port 5900 (VNC)
Assignments per the IANA port registry. Educational content.