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Introduction to Local and Wide-area Networks - Part 3

In Part 2, we examined how computers use IP addresses to send information across different network segments. In this article, we look at peer-to-peer and hub-centric networks how IP addressing facilitates the movement of data from source to destination.

Introduction to Local and Wide-area Networks - Part 2

In this second installment, we examine how information finds its way around your network and the Internet by using TCP/IP addressing.

Introduction to Local and Wide-area Networks - Part 1

This is the first in a series of articles intended to help business users, cast into the role of security manager or administrator, understand how the technology that underlies the small and medium size business network works. In this installment, we begin with a series overview followed by an introduction to how a computer, and the network to which...

Information Security Primer - Part 1

This is the first in a series exploring the basic principles of information and network defense. This article reviews the history of networks and the emergence of security. This series, and other upcoming articles about security and risk management in small and medium size businesses, contain updated content from the book "Just Enough Security: Information...