Knowra Virtual private network Virtual private network A virtual private network (VPN) creates an encrypted connection across an existing network, allowing devices or networks to communicate through a protected tunnel.
IPsec : A suite of protocols that authenticates and encrypts IP traffic, commonly used to build VPN tunnels. It secures network-layer VPN tunnels with authentication and encryption.
Remote access : The ability to use systems or services from a location separate from the network where they are hosted. Remote-access VPNs connect off-site users to an organization's internal network.
Proxy server : An intermediary that forwards requests between a client and another server, often for filtering, caching, or address masking. A proxy may redirect selected application traffic without creating a device-wide encrypted tunnel.
Internet privacy : The protection of information about people's identities, activities, and communications while they use the internet. VPNs alter which intermediaries can observe a user's network traffic.
Computer network : A set of connected devices that exchange data using communication links and protocols. A VPN creates a protected logical connection over an underlying network.
WireGuard : A VPN protocol designed around a small codebase and modern cryptographic primitives. It provides a streamlined protocol for creating encrypted VPN tunnels.
Site-to-site VPN : A VPN configuration that securely connects entire networks at separate locations through gateways. It links office networks without requiring each device to create its own tunnel.
Tor : A network that routes internet traffic through multiple relays to obscure its source and destination from individual observers. Tor aims to reduce traffic traceability, while most VPNs concentrate trust in one provider.
Threat model : An analysis of an asset's likely threats, attackers, vulnerabilities, and acceptable risks. A VPN helps only against threats its design and operator are meant to address.
Encryption : The transformation of readable information into a form that only authorized parties can recover with a key. Encryption makes data inside a VPN tunnel unreadable to many observers along its route.
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