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RHCSA/RHCE Red Hat Linux Certification Study Guide (Exams EX200 & EX300), 6th Edition (Certification Press) Paperback – 1 Aug 2011
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From the Author
When I saw the changes that Red Hat announced in November of 2010, I knew that I'd have to make serious revisions for the 6th edition. When Red Hat revised those objectives again a month later, I restarted the revision process to make sure I included complete coverage of every objective.
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.
About the Author
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.
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Top Customer Reviews
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.
< 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.
this book could be half its size (pages wise) if it just stuck to the subject matter and stopped going of on a mission.
I passed my rhcsa and rhce, but I cant say this book helped much. The redhat course books were far more useful.
Got to Chapter 3 and choked on this bit;
Linked files allow users to edit the same file from different directories. When linked
files are devices, they may represent more common names, such as /dev/dvd. Linked
files can be hard or soft.
Hard links include a copy of the file.
As long as the hard link is made within the same partition, the inode numbers are identical.
You could delete a hard-linked file in one directory, and it would still exist in the other directory."
The above is just plain wrong!
A file is an entry in a directory that contains the name, and the inode number of the actual file.
Using the 'ln' command to make a hard link just creates a new entry in a directory pointing to the same inode as the file you are linking to. As each file system has a private set of inode numbers, you cannot hard link from one filesystem to another, but you
can use a symbolic link (-s) to achieve the same effect.
So a link is not just for editing, it is not a 'copy'. A hard link is where an entry in a directory points to the same inode as another entry in some other (or the same) directory, and you cannot have hardlinks from one filesystem to another (nothing to do with partitions!) as inodes are only unique within a file system.
When you delete a file, the actual function in the kernel is 'unlink'. When the number of hard links to a file is down to zero, the file is actually removed.
Looking for alternative source of training materials for RHCE exams...
Most Recent Customer Reviews
This book provide the information to pass the exam and loads of examples, a lot to demostate and learn fromPublished 1 month ago by Electroniz
Pretty good book, with lots of worthwhile content.
There are quite a few errors though. Anyone who goes through the book actually doing the exercises will find several... Read more
On the plus side, the book includes practice exams, and a brief summary of the key skills/tasks expected early on. Read morePublished on 26 Nov. 2013 by Chris Derson
The book is a must for those taking the RHCSA / RHCE exams but is a useful source of information even if you don't plan to take the exams.Published on 30 Aug. 2013 by John R
A essential read to someone that is pursuing the rscsa or rhce certification .
Also even if you do not get the certification there are always good things to learn here .
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