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Linux Firewalls (2nd Edition)
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Author: Robert Ziegler
List Price: $49.99
Our Price: Click to see the latest and low price
ISBN: 0735710996
Publisher: Que (24 October, 2001)
Edition: Paperback
Sales Rank: 44,152
Average Customer Rating: 4.26 out of 5
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Customer ReviewsRating: 5 out of 5
Very well researched, clear discussion
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.
Rating: 2 out of 5
Riddled with errors
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.
Rating: 1 out of 5
Never returned a book until now
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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