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SSH, the Secure Shell: The Definitive Guide

SSH, the Secure Shell: The Definitive Guide

4.6 5
by Daniel J. Barrett, Richard E. Silverman, Robert G. Byrnes

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Are you serious about network security? Then check out SSH, the Secure Shell, which provides key-based authentication and transparent encryption for your network connections. It's reliable, robust, and reasonably easy to use, and both free and commercial implementations are widely available for most operating systems. While it doesn't solve every privacy and


Are you serious about network security? Then check out SSH, the Secure Shell, which provides key-based authentication and transparent encryption for your network connections. It's reliable, robust, and reasonably easy to use, and both free and commercial implementations are widely available for most operating systems. While it doesn't solve every privacy and security problem, SSH eliminates several of them very effectively.Everything you want to know about SSH is in our second edition of SSH, The Secure Shell: The Definitive Guide. This updated book thoroughly covers the latest SSH-2 protocol for system administrators and end users interested in using this increasingly popular TCP/IP-based solution.How does it work? Whenever data is sent to the network, SSH automatically encrypts it. When data reaches its intended recipient, SSH decrypts it. The result is "transparent" encryption-users can work normally, unaware that their communications are already encrypted. SSH supports secure file transfer between computers, secure remote logins, and a unique "tunneling" capability that adds encryption to otherwise insecure network applications. With SSH, users can freely navigate the Internet, and system administrators can secure their networks or perform remote administration.Written for a wide, technical audience, SSH, The Secure Shell: The Definitive Guide covers several implementations of SSH for different operating systems and computing environments. Whether you're an individual running Linux machines at home, a corporate network administrator with thousands of users, or a PC/Mac owner who just wants a secure way to telnet or transfer files between machines, our indispensable guide has you covered. It starts with simple installation and use of SSH, and works its way to in-depth case studies on large, sensitive computer networks.No matter where or how you're shipping information, SSH, The Secure Shell: The Definitive Guide will show you how to do it securely.

Product Details

O'Reilly Media, Incorporated
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Barnes & Noble
File size:
6 MB

Meet the Author

Daniel J. Barrett has been immersed in Internet technology since 1985. Currently working as a software engineer, Dan has also been a heavy metal singer, Unix system administrator, university lecturer, web designer, and humorist. He is the author of O'Reilly's Linux Pocket Guide, and is the coauthor of Linux Security Cookbook, and the first edition of SSH, The Secure Shell: The Definitive Guide. He also writes monthly columns for Compute! and Keyboard Magazine, and articles for the O'Reilly Network.

Richard E. Silverman has a B.A. in computer science and an M.A. in pure mathematics. Richard has worked in the fields of networking, formal methods in software development, public-key infrastructure, routing security, and Unix systems administration. He co-authored the first edition of SSH, The Secure Shell: The Definitive Guide.

Robert G. Byrnes, Ph.D., has been hacking on Unix systems for twenty years, and has been involved with security issues since the original Internet worm was launched from Cornell University, while he was a graduate student and system administrator. Currently, he's a software engineer at Curl Corporation, and has worked in the fields of networking, telecommunications, distributed computing, financial technology, and condensed matter physics.

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SSH, The Secure Shell: The Definitive Guide 4.6 out of 5 based on 0 ratings. 5 reviews.
Anonymous 12 days ago
Great! Keep up with the good work! ; - )
Anonymous 3 months ago
{I'm trying to write one story for each of the Heck kids- from "The Middle"- and I'm not even halfway done with "Climbing Ranks" at 'bih' all results for Brick... I'm only working on this one right now because things are getting confusing with multiple copies of the same book. This is Sue's story. I'm hoping to write an Axl story soon at 'arh' results... happy reading!}<p>I remember it as clear as day.<p>The year that I was invited to go to prom with so many different guys.<p>Edwin. Derrick. Sean.<p>Darrin.<p>And I've had so many relationships.<p>Matthew. Brad. Logan. Jeremy. Darrin.<p>More than I can even count, I think.<p>Same goes for Axl.<p>Come to think of it, the steadiest relationship that has happened is Brick and Cindy, now five years married and expecting their second child.<p>But I digress.<p>I mean, what happens when every single guy previously involved in your life shows up on your (theoretical OR literal) doorstep, interested in reviving what once was?<p>~-~<p>Axl smiled down at Avalon and Abby before flicking his gaze back up to me.<p>"You remember the rules," he said and I nodded.<p>'The rules' were simple and consisted of just being a good caretaker. Yes, I once put a hole in my wall when I was younger, and yes, a deer ran into me, but that stuff happened to me, nobody else.<p>Nobody.<p>"Good," Axl answered, "either April or I should be here by five or five thirty."<p>"Okay."<p>"Bye girls, I love you."<p>He leaned down to hug both of his daughters and give them each a kiss on top of their heads before standing back up to give me a hug.<p>Axl hopped into his car and waved, putting the vehicle in motion.<p>We watched until he was at the end of the street before walking into the apartment building.<p>"Aunt Sue, what are we going to do today?"<p>I take both of my nieces by the hand and smile.<p>"Whatever you want to do, Avalon. So long as it's okay with Abby and I."<p>Avalon had grown a lot in the past three years. Now eight years old, she still had the dark hair with natural highlights. Her blue eyes were the same. But now she was up to my waist- which, in comparison, is still Brick's stomach- and had a more sophisticated flair about her.<p>Abby was the same age as Trystan, so she's about three and is still really adorable. Her dark black ringlets framing her dark face... dark eyes alight with discovery and curiousity...<p>"I wanna play a game."<p>But I had stopped.<p>There, standing about two yards in front of me, facing a door, stood Darrin.<p>~-~<p>At five thirty, April pulled into the parking lot to pick up Abby and Avalon.<p>Soon enough, I was in my apartment's living room, sitting alone.<p>I jump the sound of a knock at the door.<p>"Hey, I just moved into the apartment across the hall," Darrin started, "and I wanted to introduce myself to my new neighbors..."<p>He trails off as it dawns on him who I am.<p>"Sue..."<p>But it's too late.<p>I have already closed and locked the door, put my headphones on, and relaxed on my couch.
Guest More than 1 year ago
[A review of the 2nd EDITION 2005.] In an earlier, more trusting Internet, rlogin, ftp and telnet were widely used for remote access. But the increase in malware sniffing of these plaintext channels has led to ssh largely supplanting them. The book explains why you as a user should prefer ssh. It greatly helps to guard your account and its password. No small matter if this account has sensitive data. Actually, if you are also a sysadmin, you may want to consider restricting secure remote access to ssh. The book deals with the broad outline of the cryptographic underpinnings. But it does not require you to understand any of the formal maths. (Whew!) As a practical matter, the bulk of the text is taken up with the myriad ways that ssh implementations can be used. Shows the crucial role played by ssh. Possibly the hardest part concerns key management. Which is often the bane of any cryptosystem. So you should not regard this as a particular failing of ssh.
Guest More than 1 year ago
SSH, the Secure Shell: The Defintiive Guide is another great book from O'Reilly. As the name would suggest, however, it's not so much a meant as a tutorial or a howto as it is an in-depth analysis of SSH's workings, though the examples given could probably be used as the former. The first chapters of the book begin with a lookat what SSH is, a summary of its general uses, and the differences between the various SSH implmentations. It then quickly moves onto a number of practical examples, with explanations of both the 'how' and 'why' behind the examples. Some of the more interesting examples are those that demonstrate X11 tunnelling, key management, and how SSH can be integrated with other applications (such as PGP, for example). One of the major faults of the book is in the writing style. The regular switching back and forth between a conversational tone and a serious, technical one was something that I found rather annoying. But other than that, this is more or less a well-rounded and nicely written book on SSH, and I would certainly recommend it to anyone who is interested in this topic.
Guest More than 1 year ago
As a System Administrator and consultant, it is difficult to find a text that covers a subject well enough to encourage others to read. This text is the most comprehensive guide to the details of the use of all variations of SSH programs in the market. My particular program of interest is OpenSSH, and this guide does a marvelous job of detailing all aspects of the application. In addition, the authors spent a considerable amount of time and energy to give the reader a clear understanding of the differences between each application. As usual, Oreilly books can get very technical, and this book is designed for people that have had the opportunity to play with SSH...even for only a brief period of time. The web is a better place if you have never used SSH before...but if you ever plan on using SSH for anything worthwhile, you better have this book on the shelf!