What is a Network? A network refers to two or more connected computers that can share resources such as data, a printer, an Internet connection, applications, or a combination of …

Computer networks and internets: an overview of concepts, terminology, and technologies that form the basis for digital communication in individual networks and the global Internet

The first step when building a network, even a worldwide network such as the Internet, is to connect two hosts together. This is illustrated in the figure below.

Types of Networks There are two principle kinds of networks: Wide Area Networks (WANs) and Local Area Networks (LANs).

My goal has been to create a book that is useful to a broad audience, including those interested in network management, in high-performance networking, in software development, or just in …

Sometimes, you need to go between different networks (e.g. between a LAN and the Internet). In order to do this, you use something called Network Address Translation (or NAT).

This document provides an overview of basic networking concepts for beginners.