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

SSL/TLS Certificate

A digital certificate that authenticates a website identity and enables encrypted HTTPS connections.

The seven-layer Open Systems Interconnection model that standardizes network communication functions from physical transmission to application protocols.

Network Monitoring

The practice of continuously observing network infrastructure to detect failures, performance degradation, and security threats.

Network Topology

The physical or logical arrangement of nodes and connections in a computer network, such as star, mesh, ring, or bus configurations.

DNS Record Types

Different types of DNS entries that map domain names to various information like IP addresses, mail servers, and verification strings.

QoS (Quality of Service)

A set of techniques for managing network traffic to prioritize certain types of data and ensure performance for critical applications.

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