A guide to building and modifying Tcl scripts to automate network administration tasksStreamline Cisco network administration and save time with Tcl scriptingCisco networking professionals are under relentless pressure to accomplish more, faster, and with fewer resources. The best way to meet this challenge is to automate mundane or repetitive tasks wherever possible. In this book, three Cisco experts show you how to use Tcl scripting for C...

Hacking is the art of creative problem solving, whether that means finding an unconventional solution to a difficult problem or exploiting holes in sloppy programming. Many people call themselves hackers, but few have the strong technical foundation needed to really push the envelope.Rather than merely showing how to run existing exploits, author Jon Erickson explains how arcane hacking techniques actually work. To share the art and science of hacking in a way that is accessible to...

DNS and BIND tells you everything you need to work with one of the Internet's fundamental building blocks: the distributed host information database that's responsible for translating names into addresses, routing mail to its proper destination, and even listing phone numbers with the new ENUM standard. This book brings you up-to-date with the latest changes in this crucial service.The fifth edition covers BIND 9.3.2, the most recent release of the BIND 9 series, as well as BIND 8....

In order to thoroughly understand what makes Linux tick and why it works so well on a wide variety of systems, you need to delve deep into the heart of the kernel. The kernel handles all interactions between the CPU and the external world, and determines which programs will share processor time, in what order. It manages limited memory so well that hundreds of processes can share the system efficiently, and expertly organizes data transfers so that the CPU isn't kept waiting any longer tha...

Linux Kernel Development details the design and implementation of the Linux kernel, presenting the content in a manner that is beneficial to those writing and developing kernel code, as well as to programmers seeking to better understand the operating system and become more efficient and productive in their coding.The book details the major subsystems and features of the Linux kernel, including its design, implementation, and interfaces. It covers the Linux kernel with bot...

Fully revised to cover the Red Hat Certified Engineer exam revision based on Red Hat Enterprise Linux 6 Updated for the release of Red Hat Enterprise Linux 6 and the related Red Hat Certified Engineer certification exam revision, RHCE Red Hat Certified Engineer Linux Study Guide, Sixth Edition provides complete coverage of all official exam objectives and the revised format for the RHCE exam. The RHCE exam revises twice annually and the latest exam update has removed multiple-choice questio...

Prepare for Exam 70-414—and help demonstrate your real-world mastery of advanced server design, planning, and implementation. Designed for experienced, MCSA-certified professionals ready to advance their status—Exam Ref focuses on the critical-thinking and decision-making acumen needed for success at the MCSE level.Optimize your exam-prep by focusing on the expertise needed to:Manage and Maintain a Server InfrastructurePlan and Implement a Highly Av...

>Trust the best selling Official Cert Guide series from Cisco Press to help you learn, prepare, and practice for exam success. They are built with the objective of providing assessment, review, and practice to help ensure you are fully prepared for your certification exam. Master Cisco CCNA Security IINS 640-554 exam topics Assess your knowledge with chapter-opening quizzes Review key concepts with exam preparation tasks

RHCSA is an entry-level certification that focuses on actual competencies at system administration, including installation and configuration of a Red Hat Linux system and attaching it to a live network running network services.To achieve the RHCSA certification the student must pass EX200, a half-day hands-on lab exam. There is no prerequisite for the exam, but Red Hat recommends preparing for the exam by taking courses in Red Hat System Administration (RH124 or RH135) if one does ...

If you’ve been asked to maintain large and complex Hadoop clusters, this book is a must. Demand for operations-specific material has skyrocketed now that Hadoop is becoming the de facto standard for truly large-scale data processing in the data center. Eric Sammer, Principal Solution Architect at Cloudera, shows you the particulars of running Hadoop in production, from planning, installing, and configuring the system to providing ongoing maintenance.Rather than run through all poss...

The most complete, authoritative technical guide to the FreeBSD kernel’s internal structure has now been extensively updated to cover all major improvements between Versions 5 and 11. Approximately one-third of this edition’s content is completely new, and another one-third has been extensively rewritten.Three long-time FreeBSD project leaders begin with a concise overview of the FreeBSD kernel’s current design and implementation. Next, they cover the FreeBSD kernel from the system...

The only Oracle Press guide to the all-new Oracle Certified Associate Oracle Solaris 11 System Administration exam—the designated entry point for the Oracle Solaris 11 system administration certification track.Offering 100% coverage of the exam 1Z0-821 objectives, OCA Oracle Solaris 11 System Administration Exam Guide includes exam tips that highlight key information and potential pitfalls in the exam. Hands-on examples and exercises are also included to reinforce practi...