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RHCSA/RHCE Red Hat Linux Certification Study Guide (Exams EX200 & EX300), 6th Edition (Certification Press) Paperback – 1 Aug 2011

3.8 out of 5 stars 18 customer reviews

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  • RHCSA/RHCE Red Hat Linux Certification Study Guide (Exams EX200 & EX300), 6th Edition (Certification Press)
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Product Description

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.


Customer Reviews

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Just so you know where I'm coming from, RHEL4/5 admin with 5 years experience and plenty of prior experience across other OS's, not a sysadmin God, but not too shabby, looking to fill a few blanks like selinux that just haven't come up in the working world.

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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I've over 14 yrs. Linux sys-admin experience and decided to take the exam. So, bought this book to prepare for RHSCA/RHCE exam and found it's very good as study material and also as reference. It seems to be a must-have one for the RHSCA/RHCE candidate, even for a experienced one. However, the included PDF version is bit different form the original book for a few chapters, and there quite a few serious ones. I haven't finished reading the book yet but beware of page 51, 06-ch06.pdf, where it describes how to auto-mount an encrypted LUKS filesystem - if you do that you'll end up with a non-bootable system. After adding the "/etc/fstab" entry (and of course before [re]booting), you need to put this in to the "/etc/crypttab":

< 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.
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This book covers all of the material for the Red Hat certified System Admin and Engineer tracks. Jang has done a good job, each section is covered in clear detail and doesn't waffle on too much and is well presented. Chapters start with the boot process and work their way up to system services the most admin/engineers will use and administer in their day to day work. The SA and CE tracks are clearly separated and provide examples that you can follow. As the the certification tests are fully practical it is well worth following these examples in a virtual machine to really get to know the environment. Enjoy working through this and good luck.
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Although Michael Jangs book is well known for being the book to buy when doing your RHCE, I found it went over and over and over the same statements like a stuck record.
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.
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The book is good to practice for the exam and build a small lab, it is quite useful to get experience before the exam. The fact that the chapters are available as pdf is good because you can read things beforehand (bus, train) and then practice when you have time. The instructions sometimes are not quite detailed and can be a bit confusing to read sometimes. Perhaps it is target for beginners, I found the order of things too confusing sometimes. On the other hand, instructions weren't precise enough and, in this particular, actually targeting more experienced users. I haven't tried the last chapters for the RHCE.
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You need to read chapters One and Two at the same time to figure out what the lab system 'baseline' starting point is. It would help if there was an appendix that said 'Just build this, you will learn more about what it actually is later'.

Got to Chapter 3 and choked on this bit;
"
ln
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...
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