TAILIEUCHUNG - Designing and Implementing Linux Firewalls and QoS using netfilter, iproute2, NAT, and L7-filter

A networking firewall is a logical barrier designed to prevent unauthorized or unwanted communications between sections of a computer network. Linux-based firewalls besides being highly customizable and versatile are also robust, inexpensive, and reliable. The two things needed to build firewalls and QoS with Linux are two packages named netfilter and iproute. While netfilter is a packet-filtering framework included in the Linux kernels and , iproute is a package containing a few utilities that allow Linux users to do advanced routing and traffic shaping | Designing and Implementing Linux Firewalls and QoS using netfilter iproute2 NAT and L7-filter Learn how to secure your system and implement QoS using real-world scenarios for networks of all sizes Lucian Gheorghe - PUBLISHING BIRMINGHAM - MUMBAI Designing and Implementing Linux Firewalls and QoS using netfilter iproute2 NAT and L7-filter Copyright 2006 Packt Publishing All rights reserved. No part of this book may be reproduced stored in a retrieval system or transmitted in any form or by any means without the prior written permission of the publisher except in the case of brief quotations embedded in critical articles or reviews. Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However the information contained in this book is sold without warranty either express or implied. Neither the author Packt Publishing nor its dealers or distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book. Packt Publishing has endeavored to provide trademark information about all the companies and products mentioned in this book by the appropriate use of capitals. However Packt Publishing cannot guarantee the accuracy of this information. First published October 2006 Production Reference 2181006 Published by Packt Publishing Ltd. 32 Lincoln Road Olton Birmingham B27 6PA UK. ISBN 1-904811-65-5 Cover Image by .

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