If you have anything to do with networked AV and you're not well-versed in the OSI model, we've got you covered. You will learn the fundamental ideas around getting data from host A to host B over a ...

Welcome! Throughout this course, Network Systems Foundations, you will delve into the fundamental layers of network communication. You will start with a thorough discussion of the Link Layer and its ...

Part I is a practical guide for using IPsec, MPLS Layer 3, L2TPv3, L2TPv2, AToM and SSL VPNs, so start here and then enjoy this segment. Service Provider Provisioned Site-to-Site VPNs Service provider ...

This course introduces students to the fundamentals of computer networking, the OSI stack, and the practical and conceptual skills needed to build simple local area networks, perform basic device ...

Routers (and Layer 3 switches) perform table lookups determining the next hop (next router or Layer 3 switch) along the route, which in turn determines the output port over which to forward the packet ...

Joel is an internationally recognized expert in the areas of security, networking and messaging. Follow him on X (formerly Twitter) @joelsnyder. Building enterprise networks with routers and switches ...

NETLINK is a facility in the Linux operating system for user-space applications to communicate with the kernel. NETLINK is an extension of the standard socket implementation. Using NETLINK, an ...

I love new security testing tools. There is nothing quite like finding some magical bits of code allowing you to use and abuse protocols in unique and unnatural ways. I was introduced to Loki at ...