Debugging is the art of finding mistakes in code by tracing program execution line by line. This book will help programmers master the art of debugging with two popular Open Source debuggers: GDB and DDD. The book integrates general debugging principles with concrete examples and covers many topics other debugging books leave out, such as segmentation faults, threaded programming, and distributed/parallel programming.

The Art of Debugging With GDB and DDD

Computers & Technology

Matloff, Norman

Computer Science

No Starch Pr

There are many ways that a potential attacker can intercept information, or learnmore about the sender, as the information travels over a network. Silence on the Wireuncovers these silent attacks so that system administrators can defend against them,as well as better understand and monitor their systems. Silence on the Wire dissects several unique and fascinating security andprivacy problems associated with the technologies and protocols used in everydaycomputing, and shows how to use this knowledge to learn more about others or tobetter defend systems. By taking an indepth look at modern computing, from hardwareon up, the book helps the system administrator to better understand security issues,and to approach networking from a new, more creative perspective. The sys admin canapply this knowledge to network monitoring, policy enforcement, evidence analysis,IDS, honeypots, firewalls, and forensics.

Silence On The Wire: A Field Guide To Passive Reconnaissance And Indirect Attacks

Zalewski, Michal

The second volume in the Write Great Code series supplies the critical information that today's computer science students don't often get from college and university courses: How to carefully choose their high-level language statements to produce efficient code. Write Great Code, Volume 2: Thinking Low-Level, Writing High-Level, teaches software engineers how compilers translate high-level language statements and data structures into machine code. Armed with this knowledge, a software engineer can make an informed choice concerning the use of those high-level structures to help the compiler produce far better machine code--all without having to give up the productivity and portability benefits of using a high-level language.

Write Great Code, Volume 2: Thinking Low-Level, Writing High-Level

Randall Hyde

OpenPGP is the most widely used email encryption standard in the world. It is based on PGP (Pretty Good Privacy) as originally developed by Phil Zimmermann. The OpenPGP protocol defines standard formats for encrypted messages, signatures, and certificates for exchanging public keys.
PGP &amp; GPG is an easy-to read, informal tutorial for implementing electronic privacy on the cheap using the standard tools of the email privacy field - commercial PGP and non-commercial GnuPG (GPG). The book shows how to integrate these OpenPGP implementations into the most common email clients and how to use PGP and GPG in daily email correspondence to both send and receive encrypted email.
The PGP &amp; GPG book is written for the moderately skilled computer user who is unfamiliar with public key cryptography but who is nevertheless interested in guarding their email privacy. Lucas's trademark informal and relaxed tone makes public key cryptography as simple and clear as possible, so that any reasonably savvy computer user can understand it.

PGP & GPG: Email for the Practical Paranoid

Michael W. Lucas

Networking & Cloud Computing

FreeBSD—the powerful, flexible, and free Unix-like operating system—is the preferred server for many enterprises. But it can be even trickier to use than either Unix or Linux, and harder still to master.
 Absolute FreeBSD, 2nd Edition is your complete guide to FreeBSD, written by FreeBSD committer Michael W. Lucas. Lucas considers this completely revised and rewritten second edition of his landmark work to be his best work ever; a true product of his love for FreeBSD and the support of the FreeBSD community. Absolute FreeBSD, 2nd Edition covers installation, networking, security, network services, system performance, kernel tweaking, filesystems, SMP, upgrading, crash debugging, and much more, including coverage of how to:
<ul>
<li>Use advanced security features like packet filtering, virtual machines, and host-based intrusion detection</li>
<li>Build custom live FreeBSD CDs and bootable flash</li>
<li>Manage network services and filesystems</li>
<li>Use DNS and set up email, IMAP, web, and FTP services for both servers and clients</li>
<li>Monitor your system with performance-testing and troubleshooting tools</li>
<li>Run diskless systems</li>
<li>Manage schedulers, remap shared libraries, and optimize your system for your hardware and your workload</li>
<li>Build custom network appliances with embedded FreeBSD</li>
<li>Implement redundant disks, even without special hardware</li>
<li>Integrate FreeBSD-specific SNMP into your network management system.</li>
</ul>
Whether you're just getting started with FreeBSD or you've been using it for years, you'll find this book to be the definitive guide to FreeBSD that you've been waiting for.

Absolute FreeBSD: The Complete Guide to FreeBSD, 2nd Edition

Web Development & Design

Wicked Cool Ruby Scripts is a compendium of scripts that will make your life easier by saving you time and solving problems. If you find yourself wasting effort and time on a task a trained monkey could do, it's time for Ruby to come to the rescue.
Wicked Cool Ruby Scripts provides carefully selected Ruby scripts that are immediately useful. Learn how to streamline administrative tasks like renaming files, disabling processes, and changing permissions. After you get your feet wet creating basic scripts, author Steve Pugh will show you how to create powerful Web crawlers, security scripts, full-fledged libraries and applications, and much more. With each script you'll get the raw code followed by an explanation of how it really works, as well as instructions for how to run the script and suggestions for customizing it. Wicked Cool Ruby Scripts will save you from the tedium of repetitive tasks and give you back the time it would take to write scripts from scratch.

Wicked Cool Ruby Scripts: Useful Scripts That Solve Difficult Problems

Pugh, Steve

Programming

The Book of Audacity is the definitive guide to Audacity, the powerful, free, cross-platform audio editor. Audacity allows anyone to transform their Windows, Mac, or Linux computer into a powerful recording studio.
 The Book of Audacity is the perfect book for bands on a budget, solo artists, audiophiles, and anyone who wants to learn more about digital audio. Musician and podcaster Carla Schroder will guide you through a range of fun and useful Audacity projects that will demystify that geeky audio jargon and show you how to get the most from Audacity.
 You'll learn how to:
 <ul>
<li>Record podcasts, interviews, and live performances</li>
<li>Be your own backing band or chorus</li>
<li>Edit, splice, mix, and master multitrack recordings</li>
<li>Create super-high fidelity and surround-sound recordings</li>
<li>Digitize your vinyl or tape collection and clean up noise, hisses, and clicks</li>
<li>Create custom ringtones and sweet special effects</li>
</ul>
 In addition, you'll learn how to choose and use digital audio hardware like mics and preamps, and tune your computer for flawless audio performance. You'll also find out how to package your work for digital distribution, whether you want to share a podcast through iTunes or sell your own CDs. Become your own producer with The Book of Audacity. The fun starts now.

The Book of Audacity: Record, Edit, Mix, and Master With the Free Audio Editor

Schroder, Carla

Ruby is a powerful programming language with a focus on simplicity, but beneath its elegant syntax it performs countless unseen tasks. Ruby Under a Microscope gives you a hands-on look at Ruby's core, using extensive diagrams and thorough explanations to show you how Ruby is implemented (no C skills required). Author Pat Shaughnessy takes a scientific approach, laying out a series of experiments with Ruby code to take you behind the scenes of how programming languages work. You'll even find information on JRuby and Rubinius (two alternative implementations of Ruby), as well as in-depth explorations of Ruby's garbage collection algorithm. Ruby Under a Microscope will teach you:
<ul>
<li>How a few computer science concepts underpin Ruby's complex implementation</li>
<li>How Ruby executes your code using a virtual machine</li>
<li>How classes and modules are the same inside Ruby</li>
<li>How Ruby employs algorithms originally developed for Lisp</li>
<li>How Ruby uses grammar rules to parse and understand your code</li>
<li>How your Ruby code is translated into a different language by a compiler</li>
</ul>No programming language needs to be a black box. Whether you're already intrigued by language implementation or just want to dig deeper into Ruby, you'll find Ruby Under a Microscope a fascinating way to become a better programmer. Covers Ruby 2.x, 1.9 and 1.8

Ruby Under a Microscope: An Illustrated Guide to Ruby Internals

Shaughnessy, Pat

F# brings the power of functional-first programming to the .NET Framework, a platform for developing software in the Microsoft Windows ecosystem. If you're a traditional .NET developer used to C# and Visual Basic, discovering F# will be a revelation that will change how you code, and how you think about coding.
 In The Book of F#, Microsoft MVP Dave Fancher shares his expertise and teaches you how to wield the power of F# to write succinct, reliable, and predictable code. As you learn to take advantage of features like default immutability, pipelining, type inference, and pattern matching, you'll be amazed at how efficient and elegant your code can be.
 You'll also learn how to:
 <ul>
<li>Exploit F#'s functional nature using currying, partial application, and delegation</li>
<li>Streamline type creation and safety with record types and discriminated unions</li>
<li>Use collection types and modules to handle data sets more effectively</li>
<li>Use pattern matching to decompose complex types and branch your code within a single expression</li>
<li>Make your software more responsive with parallel programming and asynchronous workflows</li>
<li>Harness object orientation to develop rich frameworks and interact with code written in other .NET languages</li>
<li>Use query expressions and type providers to access and manipulate data sets from disparate sources</li>
</ul>
 Break free of that old school of programming. The Book of F# will show you how to unleash the expressiveness of F# to create smarter, leaner code.

The Book of F#: Breaking Free With Managed Functional Programming

Fancher, Dave

GNS3 is open source software that emulates Cisco router and switch hardware to simulate complex networks. You can use GNS3 on any computer to experiment with various router configurations, study for that next big Cisco certification, or build the ubernetwork of your wildest dreams—all without plugging in a single physical network cable.
The Book of GNS3 will teach you how to harness the powerful GNS3 software to create your own virtual networks with Cisco and Juniper devices. Hands-on tutorials throughout show you how to:
<ul>
<li>Configure Cisco IOS and ASA devices in GNS3</li>
<li>Add Juniper routers to your projects with VirtualBox and QEMU</li>
<li>Connect GNS3's hub, switch, and cloud devices to physical hardware</li>
<li>Integrate Cisco IOU virtual machines for advanced switching features</li>
<li>Simulate a Cisco access server to practice managing devices</li>
<li>Build bigger labs by distributing project resources across multiple computers</li>
</ul>
Why set up all of that expensive physical hardware before you know whether it will all work together? Learn how to build virtual networks with The Book of GNS3, and stop reconfiguring your lab every time you want to test something new.

The Book of GNS3: Build Virtual Network Labs Using Cisco, Juniper, and More

Neumann, Jason C.

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