Networking

Networking

What Is QoS in Networking?

Modern networks carry many different types of traffic at the same time, including web browsing, file transfers, voice calls,…

Networking

VLANs, Subnets, Security Zones & Reducing Attack Surfaces

Modern networks are rarely designed as one large, flat network. Organizations divide their infrastructure into smaller logical…

Networking

IPsec vs SSL VPN: How They Work, Security and Use Cases

VPNs can use different technologies to create secure connections. Two important approaches are IPsec VPNs and SSL/TLS-based…

Networking

What is a VPN? Site-to-Site VPN, Remote-Access VPN and Encryption Explained

Modern organizations often need employees, offices, and remote locations to securely communicate over networks such as the…

Networking

What is an Access Control List (ACL)? Standard and Extended ACLs Explained

Network devices constantly receive and forward packets. But not every packet should be allowed to reach every destination.

Networking

What is Port Security on a Cisco Switch? MAC Limits, Sticky MAC and Violation Modes

A network switch connects many devices together, but an improperly configured switch port can allow unauthorized devices…