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Networking Beginner

What is VPN (Virtual Private Network)?

A technology that creates an encrypted tunnel between your device and a remote server, securing internet traffic.

VPNs encrypt all network traffic between your device and the VPN server, protecting data on public networks and masking your IP address. Protocols include OpenVPN, WireGuard, IPSec, and L2TP.

Use cases include remote work access, bypassing geographic restrictions, privacy protection, and securing public Wi-Fi connections. Enterprise VPNs connect branch offices to central networks.

Related Terms

QoS (Quality of Service)
A set of techniques for managing network traffic to prioritize certain types of data and ensure performance for critical applications.
DNS Record Types
Different types of DNS entries that map domain names to various information like IP addresses, mail servers, and verification strings.
HTTP Keep-Alive
An HTTP mechanism that reuses a single TCP connection for multiple requests, reducing the overhead of establishing new connections.
Network Topology
The physical or logical arrangement of nodes and connections in a computer network, such as star, mesh, ring, or bus configurations.
DNS (Domain Name System)
A hierarchical naming system that translates human-readable domain names into IP addresses.
SDN (Software-Defined Networking)
An approach that separates the network control plane from the data plane, enabling centralized, programmable network management.
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