Why RDP Without a VPN Is Dangerous
Remote Desktop Protocol on port 3389 is one of the most commonly attacked surfaces on the internet. Automated scanners probe public IP addresses continuously looking for open RDP ports. Without a VPN, your RDP login screen is visible to the entire internet. With a VPN, it is hidden behind another authentication layer.
The Right Setup
The correct approach is to close port 3389 to the public internet entirely and only allow RDP connections from your VPN's IP range. This means attackers cannot even reach the RDP login screen unless they have already authenticated to your VPN. Two-factor authentication on the VPN itself adds another barrier.
Best VPNs for RDP Access
WireGuard-based VPNs are the fastest option for RDP because their low latency means the remote desktop feels more responsive. Tailscale is particularly easy to set up for personal and small business use. For enterprise environments, Cisco AnyConnect or Palo Alto GlobalProtect integrate with existing identity management systems.
Site-to-Site vs Client VPN
If you are connecting to an office network, a site-to-site VPN maintains a permanent tunnel between two locations. If you are connecting an individual device to a network, a client VPN (the more common type) authenticates each device individually. For remote workers accessing office machines via RDP, client VPN is the standard approach.