Network Security is a comprehensive resource written for anyone who plans or implements network security measures, including managers and practitioners. It offers a valuable dual perspective on security: how your network looks to hackers who want to get inside, and how you need to approach it on the inside to keep them at bay. You get all the hands-on technical advice you need to succeed, but also higher-level administrative guidance for developing an effective security policy. There may be no such thing as absolute security, but, as the author clearly demonstrates, there is a huge difference between the protection offered by routine reliance on third-party products and what you can achieve by actively making informed decisions. You’ll learn to do just that with this book’s assessments of the risks, rewards, and trade-offs related implementing security measures.

Key Features

+ Helps you see through a hacker's eyes so you can make your network more secure. + Provides technical advice that can be applied in any environment, on any platform, including help with intrusion detection systems, firewalls, encryption, anti-virus software, and digital certificates. + Emphasizes a wide range of administrative considerations, including security policies, user management, and control of services and devices. + Covers techniques for enhancing the physical security of your systems and network. + Explains how hackers use information-gathering to find and exploit security flaws. + Examines the most effective ways to prevent hackers from gaining root access to a server. + Addresses Denial of Service attacks, "malware," and spoofing. + Includes appendices covering the TCP/IP protocol stack, well-known ports, and reliable sources for security warnings and updates.


Security practitioners, managers, and administrators working in IT and networking departments.

Table of Contents

Chapter 1: In the Beginning 1.0 Introduction 1.1 Defining Security 1.2 The Two Views of Network Security 1.3 The Organizational Security Process 1.4 Preparing a Security policy 1.5 Security Audits 1.6 Summary Chapter 2: Basic Security Architecture 2.0 Introduction 2.1 Secure Network Layouts 2.2 Firewalls 2.3 Hands On: Setting File and Directory Permissions 2.4 Summary Chapter 3: Physical Security 3.0 Introduction 3.1 Dealing with Theft and Vandalism 3.2 Protecting the System Console 3.3 Managing System Failure 3.4 Hands on: Providing Physical Security 3.5 Summary Chapter 4: Information Gathering 4.0 Introduction 4.1 Social Engineering 4.2 Using Published Information 4.3 Port Scanning 4.4 Network Mapping 4.5 Hands On 4.6 Summary Chapter 5: Gaining and Keeping Root Access 5.0 Introduction 5.1 Root Kits 5.2 Brute Force Entry Attacks and Intrusion Detection 5.3 Buffer overflow Attacks 5.4 Hands On 5.5 Summary Chapter 6: Spoofing 6.0 Introduction 6.1 TCP spoofing 6.2 DNS spoofing 6.3 IP (and E-Mail) spoofing 6.4 Web spoofing 6.5 Hands On 6.6 Summary Chapter 7: Denial of Service Attacks 7.0 Introduction 7.1 Single source DoS Attacks 7.2 Distributed DoS Attacks


No. of pages:
© 2005
Morgan Kaufmann
eBook ISBN:
Print ISBN:

About the author

Jan Harrington

Jan L. Harrington, author of more than 35 books on a variety of technical subjects, has been writing about databases since 1984. She retired in 2013 from her position as professor and chair of the Department of Computing Technology at Marist College, where she taught database design and management, data communications, computer architecture, and the impact of technology on society for 25 years.

Affiliations and Expertise

Professor and Department Chair, Computer Science, Marist College, Hyde Park, NY, USA