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Product Description
Product Description
The best fully integrated study system available (Exams EX200 and EX300)
With hundreds of review questions and complete coverage of performance-based requirements, RHCSA/RHCE Red Hat Linux Certification Study Guide, Sixth Edition covers what you need to know--and shows you how to prepare--for these challenging exams.
- 100% complete coverage of all official objectives for Exams EX200 and EX300
- Exam Readiness Checklist--you're ready for the exam when all objectives on the list are checked off
- Inside the Exam sections in every chapter highlight key exam topics covered
- Two-Minute Drills for quick review
- 100+ lab questions--two full lab-based RHCSA exams and two full lab-based RHCE exams--match the format, tone, topics, and difficulty of the real exam
Covers all the exam topics, including:
Virtual Machines and Automated Installations * Fundamental Command Line Skills * RHCSA-Level Security Options * The Boot Process * Linux Filesystem Administration * Package Management * User Administration * RHCSA-Level System Administration * RHCE Security * System Services and SELinux * RHCE Administration * Mail Servers * Samba * File Sharing * DNS, FTP, and Logging
CD-ROM includes:
- Complete lab-based exam preparation, featuring:
- Two full RHCSA practice exams
- Two full RHCE practice exams
- Lab-based chapter self tests
- In-depth answer explanations for all labs
- RHCSA and RHCE Glossary
- PDF copy of the book for studying on the go
Michael Jang, RHCE, LPIC-2, UCP, LCP, MCP, is the author of three previous bestselling editions of RHCE Red Hat Certified Engineer Linux Study Guide and several other books on Linux and professional certification.
From the Author
To address the new RHCSA certification, the changes to the RHCE objectives, as well as the new features included in Red Hat Enterprise Linux 6 (RHEL 6), I've rewritten and added hundreds of pages of new material. I actually had to delete a couple of hundred pages of now unrelated material from the fifth edition to make room.
Every command in this book has been tested on a RHEL 6 system. Much of this book has also been tested on the freely available Scientific Linux 6, built from RHEL 6 source code. (You don't have to buy RHEL 6 to prepare for the Red Hat exams.) While the best way to prepare for the RHCSA and RHCE exams is with Red Hat's prep courses, I hope you'll find this book to be invaluable in your studies and on the job.
The book describes how you can satisfy the latest objectives for both the RHCSA and RHCE exams. At over 1000 pages, it includes detailed descriptions on how to configure real-world systems based on those objectives. Due to the hands-on nature of the exam, the book includes 109 labs. (That's nearly double the number of labs in the fifth edition.) Except for Chapter 1 (and one lab in Chapter 2), the lab questions and sample exams are available only on the CD, in the subdirectories for each chapter.
When I used the fifth edition to teach a Linux course, I realized how important it is to have separate chapters for the RHCSA and the RHCE. It took a bit of extra time, but I hope you agree that it's worth it. If you want to study for the RHCSA first, focus on Chapters 1 through 9. To study for the RHCE, read Chapters 10 through 17. Every chapter includes at least 12 fill-in-the-blank review questions to help you confirm mastery of this material. In addition, Chapters 1 and 2 include instructions on how to use Red Hat's KVM software to create the virtual machines to set up test scenarios for both exams.
As suggested by the RHCSA and RHCE objectives, the "performance-based testing means that candidates must perform tasks similar to what they must perform on the job". Security, especially SELinux, is more important than ever. This book describes the RHCSA-level tools needed to configure KVM, to automate installations, to customize how a system boots, to set up different filesystems, to administer users, to update packages, and more. Of course, it also addresses the RHCE skills associated with servers for e-mail, web sites, Samba, NFS, FTP, NTP, and Logging. For both exams, you'll learn to configure firewalls and SELinux in all the detail that you'll need.
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< encrypted block device > < path/to/the/actual/device > < password OR none > [list of options]
So, if "/dev/mapper/test-crypt" is the name of the resulting encrypted block device and "/dev/sdb1" is the path to the actual device, the entry should be:
test-crypt /dev/sdb1 none
It'll ask for the LUKS password during boot. For the password less booting, you need to put the password in a file like this:
# touch /root/luks.key && chmod 600 /root/luks.key
# cryptsetup luksAddKey /dev/sdb1 /root/luks.key
# echo "test-crypt /dev/sdb1 /root/luks.key" > /etc/crypttab
(The path and the name of the key file could be anything of your choice but should be matched in every entry).
The "/etc/crypttab" is actually mentioned in the book, page 381, but with some what misleading information. "<directory name w/o slash>" is wrong interpretation, according to the man page.
Bought this to help fill in a few blanks before the exam, but unfortunately found it rather rambling and unclear, inaccurate in places, and frankly feels like it has been rushed to market without proper editing or proof reading. For example, the chapter 'The Boot Process' is not the place I'd expect to find details of ifconfig, network configuration and ntp. It frequently doesn't expand on acronyms (pretty standard practice in any technical documentation in my experience the first time you mention something), for instance 'MLS' (Multi Level Security) in relation to SELINUX is not expanded at any point, leading to frequent visits to the web to clarify points.
It lacks any insight into what is happening under the bonnet, which as an engineer I find unhelpful. How can such a clearly defined subject not have clearly defined chapters and some fundamental principles covered?
In short, it's too vague to be a reference, and too rambling to allow for study and I am now in need of something more focused.
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