- Paperback: 592 pages
- Publisher: Sams; 2 edition (Oct 24 2001)
- Language: English
- ISBN-10: 0735710996
- ISBN-13: 978-0735710993
- Product Dimensions: 22.8 x 17.8 x 3.1 cm
- Shipping Weight: 871 g
- Average Customer Review: 4.3 out of 5 stars See all reviews (27 customer reviews)
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Amazon Bestsellers Rank:
#1,352,069 in Books (See Top 100 in Books)
- #40 in Books > Computers & Internet > Security & Encryption > Firewalls
- #41 in Books > Computers & Internet > Security & Encryption > Linux Security
- See Complete Table of Contents
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Product Details |
Product Description
From Amazon
TCP/IP packet handling may seem crystal clear when you first hear about it, but after you've configured your Ethernet card's netmask address, the details become rather vague. You might find yourself asking--if you were a Danish prince--"What is a packet, if its chief good and market of its time be but to route and wrap?" If routing and wrapping were all packets did, we would all enjoy our ignorance blissfully. But packets--like men, as the prince learned--can be hollow carriers of ill will, and excluding the bad ones requires us to understand what they really truly are. At last.
Just how interesting packets turn out to be is revealed in Linux Firewalls, Robert L. Zeigler's sober, agile, and subtle text. Narrowing consideration to threats faced by small networks from external sources, Zeigler and his editors introduce security by delivering prerequisite tutorials on packet architecture and normal network-based client/server daemon-to-daemon communications. Nonthreatening daemon-to-daemon communication is part of the regular operation of a networked POSIX-compliant operating system (like Linux or Windows NT), but the incessant background chatter makes finding hostile intrusions a search for sometimes subtle irregularities in a high throughput environment.
In fact, bombardment of networks with useless packets can create diversions for more pernicious attacks. Distinguishing the good packets from the potentially hostile or merely useless packets requires levels of filtering criteria that depend on the specifics of the network environment. Zeigler sorts out all of these issues and outlines practical network administration strategies for packet filtering.
Linux Firewalls is a how-to for the home Linux box, including the creating and debugging firewall rules for home LANs and network interfaces. For larger LAN users, Zeigler describes intrusion logging; configurations based on varying levels of trust; and the how, why, and when of reporting intrusions to network authorities.
In the wrong hands, firewall reports are either hyped-up cloak-and-dagger sensationalism or monotonous treatises in bitwise accounting. Zeigler strikes a middle ground with a book fit for members of the Linux community who are curious about what is happening over their TCP/IP connections. These are folks who have the prowess to build kernel releases on their own but who aren't necessarily wonks at developing kernel or device driver sources. --Peter Leopold --This text refers to an alternate Paperback edition.
Book Description
0735710996.ld
The book for Linux users wishing to implement a secure Linux firewall.
Updating the highly successful first edition to cover the Linux 2.4 kernel.
Authored Robert Ziegler is a router security architect who is well respected in the Open Source community as a firewall expert.
Includes extensive coverage of iptables, the biggest additional change to the 2.4 kernel. An Internet-connected Linux machine is in a high-risk situation. This book details security steps that a home or small-to-mid-size, non-enterprise business might take to protect itself from potential remote attackers. As with the first book, this book will provide a description of the need for security measures and solutions built upon the most up-to-date technology available. Linux Firewalls, Second Edition has been updated to cover the 2.4 kernel and additional chapters on VPNs, SSH, and Tripwires have been added.Robert Ziegler is a router security architect. Until recently he worked for Nokia, designing firewall products for Nokias future product families. In his spare time Bob offers free Web-based firewall design services for the home user, as well as a popular LAN and Firewall FAQ to help people quickly get their Linux systems set up securely. He has worked as a UNIX operating system developer for various research and development companies. Bob wrote the very successful first edition of this book, Linux Firewalls, ISBN- 0-7357-0900-9.
Carl Constaintine, contributing author, has worked in the computer industry for many years. Hes been a programmer, consultant, technical writer and troubleshooter. He currently works at the University of Victoria as a Programmer Analyst/Unix System Administrator for the Deptartment of Computer Science.
The book for Linux users wishing to implement a secure Linux firewall.
Updating the highly successful first edition to cover the Linux 2.4 kernel.
Authored Robert Ziegler is a router security architect who is well respected in the Open Source community as a firewall expert.
Includes extensive coverage of iptables, the biggest additional change to the 2.4 kernel. An Internet-connected Linux machine is in a high-risk situation. This book details security steps that a home or small-to-mid-size, non-enterprise business might take to protect itself from potential remote attackers. As with the first book, this book will provide a description of the need for security measures and solutions built upon the most up-to-date technology available. Linux Firewalls, Second Edition has been updated to cover the 2.4 kernel and additional chapters on VPNs, SSH, and Tripwires have been added.Robert Ziegler is a router security architect. Until recently he worked for Nokia, designing firewall products for Nokias future product families. In his spare time Bob offers free Web-based firewall design services for the home user, as well as a popular LAN and Firewall FAQ to help people quickly get their Linux systems set up securely. He has worked as a UNIX operating system developer for various research and development companies. Bob wrote the very successful first edition of this book, Linux Firewalls, ISBN- 0-7357-0900-9.
Carl Constaintine, contributing author, has worked in the computer industry for many years. Hes been a programmer, consultant, technical writer and troubleshooter. He currently works at the University of Victoria as a Programmer Analyst/Unix System Administrator for the Deptartment of Computer Science.
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Customer Reviews
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Most helpful customer reviews
5.0 out of 5 stars
Very well researched, clear discussion,
By "ericvsmith" (Kensington, MD USA) - See all my reviews
This review is from: Linux Firewalls (Paperback)
I have used ipfilter on FreeBSD for many years, and I'm now starting to deploy Linux. Ziegler presents an extremely well researched book. Particularly impressive is his discussion of the nastier protocols like DHCP and FTP. Getting ssh and smtp through a firewall is pretty simple, it's the tougher protocols that really require some thought, and it's clear he's done that.Along with explaining the protocols, he explains how iptables works and how to apply the protocol knowledge to building iptables rules. The appendices where he assembles all of the rules together are worth the price of the book all by themselves. I wish half of my technical books were as good a value as this one.
2.0 out of 5 stars
Riddled with errors,
By A Customer
This review is from: Linux Firewalls (Paperback)
This book does a great job of explaning the theory behind netfilter firewalling with iptables. Every concept is backed up with a concise script.And this is precisely why you should avoid this book. Page after page is riddled with glaring errors. Some scripts produce syntax errors. Others yield unexpected results. Entire passages are copied and pasted out of context. Only a handful of errors can be chalked up as mere typos. I spent too much time correcting mistakes that could have been better spent studying the material. If you must read this book, don't blame yourself when you get lost-- the proofreaders were lost as well.
1.0 out of 5 stars
Never returned a book until now,
By William Barrett Simms (Boston, MA) - See all my reviews
This review is from: Linux Firewalls (Paperback)
This book is horribly written. There are glaring grammar errors which make the book impossible to read. Hopefully the proofers have been sent back to kinder-care. Moreover, there are sections in the book where they cut-and-copied the syntax explanation into the example section. But they forgot to change the text to an example! Look at the section on xinetd for an example. This one had to go back. This is too bad. We really need an good book on this topic. Sorry Mr. Ziegler, get better proof readers for the 3rd edition.
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