Linux Firewalls: Attack Detection and Response with Iptables, PS

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Linux Firewalls: Attack Detection and Response with Iptables, PSAD, and Fwsnort

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General Information

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Type.................: Ebook

Part Size............: 6,823,226 bytes









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Post Information

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Posted by............: ~tqw~



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Release Notes

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Use iptables to detect and prevent network-based attacks



System administrators need to stay ahead of new security vulnerabilities that

leave their networks exposed every day. A firewall and an intrusion detection

system (IDS) are two important weapons in that fight, enabling you to

proactively deny access and monitor network traffic for signs of an attack.



Linux Firewalls discusses the technical details of the iptables firewall and the

Netfilter framework that are built into the Linux kernel, and it explains how

they provide strong filtering, Network Address Translation (NAT), state

tracking, and application layer inspection capabilities that rival many

commercial tools. You'll learn how to deploy iptables as an IDS with psad and

fwsnort and how to build a strong, passive authentication layer around iptables

with fwknop.



Concrete examples illustrate concepts such as firewall log analysis and

policies, passive network authentication and authorization, exploit packet

traces, Snort ruleset emulation, and more with coverage of:



Γ?ó Application layer attack detection with the iptables string match extension

and fwsnort

Γ?ó Building an iptables ruleset that emulates a Snort ruleset

Γ?ó Port knocking vs. Single Packet Authorization (SPA)

Γ?ó Tools for visualizing iptables logs

Γ?ó Passive OS fingerprinting with iptables



Perl and C code snippets offer practical examples that will help you to maximize

your deployment of Linux firewalls.



If you're responsible for keeping a network secure, you'll find Linux Firewalls

invaluable in your attempt to understand attacks and use iptables-along with

psad andfwsnort-to detect and even prevent compromises.



Foreword by Richard Bejtlich

Introduction

Chapter 1: Care and Feeding of iptables

Chapter 2: Network Layer Attacks and Defense

Chapter 3: Transport Layer Attacks and Defense

Chapter 4: Application Layer Attacks and Defense

Chapter 5: Introducing psad: The Port Scan Attack Detector

Chapter 6: psad Operations: Detecting Suspicious Traffic

Chapter 7: Advanced psad Topics: From Signature Matching to OS Fingerprinting

Chapter 8: Active Response with psad

Chapter 9: Translating Snort Rules into iptables Rules

Chapter 10: Deploying Fwsnort

Chapter 11: Combining psad and Fwsnort

Chapter 12: Port-Knocking vs. Single Packet Authorization

Chapter 13: Introducing fwknop

Chapter 14: Visualizing iptables Logs

Appendix A: Attack Spoofing

Appendix B: A Complete fwsnort Script



Product Details



* ISBN: 1593271417

* ISBN-13: 9781593271411

* Format: Paperback, 308pp

* Publisher: No Starch Press San Francisco, CA

* Pub. Date: July 2007



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