Firewalls: Jumpstart for Network and Systems Administrators

Author: John R. Vacca,Scott Ellis
ISBN: 1555582974/9781555582975
Pages: 448
Publication Date: 2004-12-06

In this book, you will gain extensive hands-on experience installing and configuring a firewall. You will also learn how to allow access to key Web services while maintaining your organization's security, as well as how to implement firewall-to-firewall virtual private networks (VPNs). You will learn how to build a firewall to protect your network; provide access to HTTP and FTP services on the Internet, and implement publicly accessible servers without compromising security. Furthermore, throughout the book, extensive hands-on examples provide you with practical experience in establishing security with firewalls. Examples include, but are not limited to: Installing and configuring Check Point FireWall-1; scanning to validate configuration using ISS Internet Scanner; configuring the firewall to support simple and complex Web services; setting up a packet filtering router; enhancing firewall configurations to support split-DNS; authenticating remote users; and protecting browsers and servers with a proxy-based firewall.

· Install and configure proxy-based and stateful-filtering firewalls
· Protect internal IP addresses with NAT and deploy a secure DNS architecture
· Develop an Internet/intranet security policy to protect your organization's systems and data
· Reduce your susceptibility to an attack by deploying firewalls, data encryption and decryption and other countermeasures
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Linux Firewalls: Attack Detection and Response with iptables, psad, and fwsnort

Author: Michael Rash
ISBN: 1593271417/9781593271411
Pages: 336
Publication Date: 2007-09-15

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.

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 these topics:

  • Passive network authentication and OS fingerprinting
  • iptables log analysis and policies
  • Application layer attack detection with the iptables string match extension
  • Building an iptables ruleset that emulates a Snort ruleset
  • Port knocking vs. Single Packet Authorization (SPA)
  • Tools for visualizing iptables logs

    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 and fwsnort-to detect and even prevent compromises.

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    Cisco ASA, PIX, and FWSM Firewall Handbook (2nd Edition) (Networking Technology: Security)

    Author: David Hucaby
    ISBN: 1587054574/9781587054570
    Pages: 912
    Publication Date: 2007-08-09

    Cisco ASA, PIX, and FWSM Firewall Handbook, Second Edition, is a guide for the most commonly implemented features of the popular Cisco® firewall security solutions. Fully updated to cover the latest firewall releases, this book helps you to quickly and easily configure, integrate, and manage the entire suite of Cisco firewall products, including ASA, PIX®, and the Catalyst® Firewall Services Module (FWSM).

    Organized by families of features, this book helps you get up to speed quickly and efficiently on topics such as file management, building connectivity, controlling access, firewall management, increasing availability with failover, load balancing, logging, and verifying operation.

    Sections are marked by shaded tabs for quick reference, and information on each feature is presented in a concise format, with background, configuration, and example components.

    Whether you are looking for an introduction to the latest ASA, PIX, and FWSM devices or a complete reference for making the most out of your Cisco firewall deployments, Cisco ASA, PIX, and FWSM Firewall Handbook, Second Edition, helps you achieve maximum protection of your network resources.

    “Many books on network security and firewalls settle for a discussion focused primarily on concepts and theory. This book, however, goes well beyond these topics. It covers in tremendous detail the information every network and security administrator needs to know when configuring and managing market-leading firewall products from Cisco.”

    –Jason Nolet, Vice President of Engineering, Security Technology Group, Cisco

    David Hucaby, CCIE® No. 4594, is a lead network engineer for the University of Kentucky, where he works with health-care networks based on the Cisco Catalyst, ASA, FWSM, and VPN product lines. He was one of the beta reviewers of the ASA 8.0 operating system software.

    • Learn about the various firewall models, user interfaces, feature sets, and configuration methods
    • Understand how a Cisco firewall inspects traffic
    • Configure firewall interfaces, routing, IP addressing services, and IP multicast support
    • Maintain security contexts and flash and configuration files, manage users, and monitor firewalls with SNMP
    • Authenticate, authorize, and maintain accounting records for firewall users
    • Control access through the firewall by implementing transparent and routed firewall modes, address translation, and traffic shunning
    • Define security policies that identify and act on various types of traffic with the Modular Policy Framework
    • Increase firewall availability with firewall failover operation
    • Understand how firewall load balancing works
    • Generate firewall activity logs and learn how to analyze the contents of the log
    • Verify firewall operation and connectivity and observe data passing through a firewall
    • Configure Security Services Modules, such as the Content Security Control (CSC) module and the Advanced Inspection Processor (AIP) module

    This security book is part of the Cisco Press® Networking Technology Series. Security titles from Cisco Press help networking professionals secure critical data and resources, prevent and mitigate network attacks, and build end-to-end self-defending networks.

    Category: Networking: Security

    Covers: Cisco ASA 8.0, PIX 6.3, and FWSM 3.2 version firewalls

    $60.00 USA / $69.00 CAN

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