Access to a computer system or the internet requires the transfer of data to gain "entry" and is subject to a host of security breaches. The safest way to access any system is to have a secure login name and password. But when your connection is suspect using that login information can be like opening the door to anyone.
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Practical Unix & Internet Security, 3rd Edition
Product Description
When Practical Unix Security was first published more than a decade ago, it became an instant classic. Crammed with information about host security, it saved many a Unix system administrator from disaster. The second edition added much-needed Internet security coverage and doubled the size of the original volume. The third edition is a comprehensive update of this very popular book – a companion for the Unix/Linux system administrator who needs to secure his or her … More >>
Reader's Comments
The technologies of computer security are based on logic. As security is not necessarily the primary goal of most computer applications, designing a program with security in mind often imposes restrictions on that program's behavior.






I saw that there is a bargain of another paperback edition on the page of 3rd edition, so I didn’t recheck whether it is 3rd edition. So I end up in buying 2 books, 2nd and 3rd editions, because I need the 3rd edition for my class. It would be better to put edition number up in the page, not only paperback or library binding!
Rating: 2 / 5
This book is seriously outdated, and even when it wasn’t it was useless. Don’t be fooled by the five star reviews; they are most likely written by people who are a.) friends of spaf or b.) have no clue about computer security. Eugene Spafford likes to talk, but he has little skill. He would rather waste his time preaching his opinions on vulnerability disclosure than take the time to get a clue. Don’t get this book unless you are looking for a few laughs. I could write one paragraph on unix security, and if you took my advice you would be much more secure than if you read this whole useless book. What gives Spafford the right to write a book on this subject anyway? He himself was hacked by known vulnerabilities several times, and that has been documented in the book “Underground”. Looking at all the five star reviews for this book makes me realize why most networks are insecure; because the people who run them read this (…) and think they are locked down. I could go on and on, but I’m not going to.
Rating: 1 / 5
Practical Unix & Internet Security, the 3rd Edition has a ton of new useful information.
If you have but one security reference, this should be it!
Rating: 5 / 5
the book contains little to no information that any intro security book hasnt already covered, the author of the UNIX Hater’s book is definately showing his general dis interest in security for unix … why he wrote this book is beyond me … to sum up: dont waste 30-odd dollars for this .. if ya see another security book on the shelf .. try it cant be much worse
Rating: 2 / 5
This is the first book a person considering a career as an Information System Security Professional (ISSP) should read. If you are a ISSP, get this book. If you fall asleep reading it, you may want to think about another career. This book provides the fundamentals and will help you to understand information security manuals. ISSPs speak their own language with multiple acronyms and terms such as I&A, IDS, Orange Book, DAC, MAC, etc.
Rating: 5 / 5