Computer Weekly

OSI: Securing the Stack, Layer 8 -- Social engineering and security policy

Other tips in this series have examined the seven-layer OSI model from the perspective of security. Although security was not the No. 1 goal of the designers of the OSI model, the idea behind these ...
Computerworld

The Session Layer: Understanding layer 5 of the OSI Model

According to the OSI Model, the session layer is where connections are established, managed, and torn down. For connection-oriented network protocols, understanding how the session layer works, and ...
Semiconductor Engineering

Open Systems Interconnection model (OSI model)

First, and foremost, the OSI stack is just a theoretical reference model. There is no actual OSI software. It has been around since about 1980, and it is based upon recommendations from the ITU-T and ...
Computerworld

The Transport Layer: Understanding layer 4 of the OSI Model

I like to think of the transport layer as the layer of the OSI Model that enables more interesting traffic. While we network engineers may love a lot of the simpler uses of the IP protocol and ...
Computer Weekly

OSI: Securing the stack, Layer 2 -- Understanding the role of ARP

Layer 2 of the OSI model is where we find the Data Link Layer, which provides the mechanism by which data is transferred from node to node across a network. What makes this layer important is that it ...