Introduction to Computer Networks and Cybersecurity

If a network is not secure, how valuable is it? Introduction to Computer Networks and Cybersecurity takes an integrated approach to networking and cybersecurity, highlighting the interconnections so that you quickly understand the complex design issues in modern networks. This full-color book uses a wealth of examples and illustrations to effectively connect the principles of networks and networking protocols with the relevant cybersecurity issues.

Get the Fundamentals of Internet Architecture and the Protocol Layers

Organized into six parts, the book walks you through the fundamentals, starting with the way most people first encounter computer networks―through the Internet architecture. Part 1 covers the most important Internet applications and the methods used to develop them. Part 2 discusses the network edge, consisting of hosts, access networks, LANs, and the physical media used with the physical and link layers. Part 3 explores the network core, including packet/circuit switches, routers, and the Internet backbone, and Part 4 examines reliable transport and the management of network congestion.

Learn about Malware and Security Systems

Building on the concepts and principles, the book then delves into state-of-the-art cybersecurity mechanisms in Part 5. It reviews the types of malware and the various security systems, made up of firewalls, intrusion detection systems, and other components. Crucially, it provides a seamless view of an information infrastructure in which security capabilities are built in rather than treated as an add-on feature. The book closes with a look at emerging technologies, including virtualization and data center and cloud computing unified communication.

Understand Cyber Attacks―and What You Can Do to Defend against Them

This comprehensive text supplies a carefully designed introduction to both the fundamentals of networks and the latest advances in Internet security. Addressing cybersecurity from an Internet perspective, it prepares you to better understand the motivation and methods of cyber attacks and what you can do to protect the networks and the applications that run on them.

Pedagogical Features

The book’s modular design offers exceptional flexibility, whether you want to use it for quick reference, self-study, or a wide variety of one- or two-semester courses in computer networks, cybersecurity, or a hybrid of both. Learning goals in each chapter show you what you can expect to learn, and end-of-chapter problems and questions test your understanding. Throughout, the book uses real-world examples and extensive illustrations and screen captures to explain complicated concepts simply and clearly. Ancillary materials, including PowerPoint^® animations, are available to instructors with qualifying course adoption.

如果一個網絡不安全，它有多少價值呢？《計算機網絡和網絡安全入門》採用一種整合的方法來介紹網絡和網絡安全，突出了它們之間的相互聯繫，讓您能夠快速理解現代網絡中的複雜設計問題。這本全彩色書籍使用大量的例子和插圖，將網絡和網絡協議的原則與相關的網絡安全問題有效地聯繫起來。

本書分為六個部分，從基礎知識開始，介紹了大多數人首次接觸計算機網絡的方式-通過互聯網架構。第一部分介紹了最重要的互聯網應用程序及其開發方法。第二部分討論了網絡邊緣，包括主機、接入網絡、局域網和與物理和鏈路層一起使用的物理媒體。第三部分探討了網絡核心，包括分組/電路交換機、路由器和互聯網骨幹，第四部分則介紹了可靠的傳輸和網絡擁塞管理。

在基礎知識的基礎上，本書在第五部分深入介紹了最先進的網絡安全機制。它回顧了各種惡意軟件和不同的安全系統，包括防火牆、入侵檢測系統和其他組件。重要的是，它提供了一個無縫的信息基礎設施視圖，其中安全功能是內建的，而不是作為附加功能對待。本書最後介紹了新興技術，包括虛擬化、數據中心和雲計算統一通信。

這本全面的教材精心設計，既介紹了網絡的基礎知識，又介紹了互聯網安全的最新進展。從互聯網的角度來看，它使您能夠更好地理解網絡攻擊的動機和方法，以及您可以做些什麼來保護運行在網絡上的應用程序和網絡。

本書的模塊化設計提供了出色的靈活性，無論您是想用它作為快速參考、自學還是計算機網絡、網絡安全或兩者混合的各種一學期或兩學期課程的教材。每章的學習目標向您展示您可以期望學到什麼，章末的問題和練習則測試您的理解能力。整本書使用真實世界的例子和大量插圖和屏幕截圖來簡單清晰地解釋複雜的概念。教師可以獲得附帶資料，包括PowerPoint®動畫。