Security Strategies in Windows Platforms and Applications, 3rd Edition

Network Security

Today’s IT environments include components connected to form a network, or multiple networks. A network is a collection of computers and devices joined by connection media. Network components work together to support an organization’s business functions. This makes information available for various uses and many users. As networks grow and become more functional, they can become complex to manage. One way to help organize network components and keep your network simple is to categorize components by function. One way to organize components is to use an IT Infrastructure approach to group components into functional areas, or domains. FIGURE 9-1 shows an IT infrastructure with seven domains. These are the domains you’ll commonly ...