Network Security Fundamentals [Electronic resources] نسخه متنی

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Network Security Fundamentals [Electronic resources] - نسخه متنی

Gert De Laet, Gert Schauwers

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Acknowledgments

Icons Used in This Book

Command Syntax Conventions

Part I. Introduction

Chapter 1. Network Security Overview

Weaknesses and Vulnerabilities

Responsibilities for Network Security

Security Objectives

Chapter 2. Understanding VulnerabilitiesThe Need for Security

Risk and Vulnerability

TCP/IP Suite Weaknesses

Buffer Overflows

Spoofing Techniques

Social Engineering

Chapter 3. Understanding Defenses

Intrusion Detection System

PC CardBased Solutions

Physical Security

Encrypted Login

Reusable Passwords

Antivirus Software

Encrypted Files

Part II. Building Blocks

Chapter 4. Cryptography

Cryptography versus Cryptanalysis

Modern-Day Techniques

Chapter 5. Security Policies

Defining a Security Policy?

Importance of a Security Policy

Development Process

Incident Handling Process

Sample Security Policy

Chapter 6. Secure Design

Network DesignPrinciples

Network DesignMethodology

Return on Investment

Physical Security Issues

Switches and Hubs

Part III. Tools and Techniques

Chapter 7. Web Security

Chapter 8. Router Security

Basic Router Security

Router Security to Protect the Network

References in This Chapter

Chapter 9. Firewalls

Firewall Basics

Different Types of Firewalls

Enhancements for Firewalls

Case Study: Placing Filtering Routers and Firewalls

Chapter 10. Intrusion Detection System Concepts

Introduction to Intrusion Detection

Host-Based IDSs

Network-Based IDSs

IDS Management CommunicationsMonitoring the Network

Sensor Maintenance

Case Study: Deployment of IDS Sensors in the Organization and Their Typical Placement

Chapter 11. Remote Access

Lock-and-Key Feature

Two-Factor Identification

Case Study: Configuring Secure Remote Access

Chapter 12. Virtual Private Networks

Generic Routing Encapsulation Tunnels

VPNs with IPSec

Case Study: Remote Access VPN

Chapter 13. Public Key Infrastructure

Public Key Distribution

Trusted Third Party

Enrollment Procedure

Revocation Procedure

Case Study: Creating Your Own CA

Chapter 14. Wireless Security

Different WLAN Configurations

What Is a WLAN?

How Wireless Works

Risks of Open Wireless Ports

War-Driving and War-Chalking

SAFE WLAN Design Techniques and Considerations

Case Study: Adding Wireless Solutions to a Secure Network

Chapter 15. Logging and Auditing

Simple Network Management Protocol

Remote Monitoring

Service Assurance Agent

Part IV. Appendixes

Appendix A. SAFE Blueprint

Introduction to the SAFE Blueprint

SAFE Blueprint: Overview of the Architecture

References in This Appendix

Appendix B. SANS Policies

SANS Initiatives and Programs

Security Policy Project

Is It a Policy, a Standard, or a Guideline?

References in This Appendix

Appendix C. NSA Guidelines

Security Guides

References in This Appendix

Appendix D. Answers to Chapter Q&A

Website References

توضیحات

افزودن یادداشت جدید

Conclusion

Now that you know how to set up and configure VPNs from Chapter 12 and PKIs from this chapter, you should be able to install certificates and play with them in your own environment. PKIs make it easier to maintain a secure setup. PKIs use a CA for the distribution of the different keys that might be needed for connecting to a device or even to a website, as shown in the case study.