Virtual Private Network
Also known as: vpn
Definition
A virtual private network is a logical network connection that uses encryption and authenticated tunneling to carry traffic over another network.
Key Points
- Extends trusted access without exposing internal networks directly to the public internet.
- Commonly used for remote user access and site-to-site connectivity.
- Security depends on encryption, authentication, and endpoint policy, not just the tunnel itself.
- Operationally useful when remote work, partner access, or branch connectivity must be controlled.
Concept
It provides private connectivity as an overlay, typically over IP-based infrastructure, so that endpoints can exchange traffic as if they were on a protected internal network.
Explainer
VPNs are used for both remote-access and site-to-site scenarios. The term describes the network control pattern, not a physical network owned by a private operator.
Cite this entry
Virtual Private Network. ConnectedEarth Knowledge Base. https://connectedearth.space/knowledge-base/virtual-private-network/ (updated 13 September 2026).