Ebook " Linux Firewalls" Title: Linux Firewalls Author: Michael Rash Length: 338 pages Format: PDF Language: English Publication Date: 2007 Book descriptions System administrators need to stay ahead of new security vulnerabilities that leave their networks exposed every day. A firewall and an intrusion detection systems (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. Table of contents Chapter 1: Care and Feeding of iptables 9 Chapter 2: Network Layer Attacks and Defense 35 Chapter 3: Transport Layer Attacks and Defense 49 Chapter 4: Application Layer Attacks and Defense 69 Chapter 5: Introducing psad: The Port Scan Attack Detector 81 Chapter 6: psad Operations: Detecting Suspicious Traffic 99 Chapter 7: Advanced psad Topics: From Signature Matching to OS Fingerprinting 113 Chapter 8: Active Response with psad 131 Chapter 9: Translating Snort Rules into iptables Rules 149 Chapter 10: Deploying fwsnort 173 Chapter 11: Combining psad and fwsnort 193 Chapter 12: Port Knocking vs Single Packet Authorization 213 Chapter 13: Introducing fwknop 231 Chapter 14: Visualizing iptables Logs 257 Link download Ebook "Linux Firewalls"