Why study Linux?

Greetings,

If you’re reading these
In other words, it’s because you probably made several decisions.

First of all, you,
You probably know something about the Free Software movement in Brazil, and
its importance for the economy of your country. You’ve probably noticed
that there is an availability of source code for projects such as GNU and Linux
Kernel, through which you can adapt the operating system for the better
meet your needs or the needs of your employer.

Second, you may be using Linux on your PC at home, or maybe you’re an administrator of a system like Solaris, AIX, HP/UX, or some other Unix-owned system, and then you started using Linux at work. Or, you feel ready to work for a company that works as a Linux system full time.

Thirdly, you may have looked in a newspaper and noticed that some job advertisements are already requiring the candidate to have “LPI Certification” “, and you want to know the reason for such a requirement. After all, you already know how to maintain a Linux system!

When I started in
Information technology, thirty-five years ago, things were much, much more
simple than they are today. A programmer just needed to know how to drill
cards and how to write in the FORTRAN (or COBOL) language. There was no Internet or
viruses, only poor graphical interfaces, and main memory was measured at
kilobytes, no megabytes or gigabytes. Actually, it didn’t even exist
Any official title for the position we have today of “administrator of
systems”, since each system was executed by
“operators” who were concerned with a specific machine, and not with
the interactivity of several machines that work together.

Today, we have to
worry about security, network traffic and route tables, subnets, and so on
network issues. We have to control the migration of data and programs from a
system for the other, and the interoperability of various networks and protocols. we
we have to be able to plan for growth, in addition to solving problems. And the
Based on those needs that originated the tasks and the title of
“System Administrator.”

In recognition of the phenomenal growth of the GNU/Linux operating system, the Linux Professional Institute, a A non-profit organization based in Canada, stipulated a series of qualifications that a Linux system administrator must have. They also created tests with the purpose of verifying that these assignments are mastered by the administrator in question.

So, if the administrator
master a pre-defined average of those requirements, so he probably
has the necessary knowledge to administer GNU/Linux systems. Maintaining
In the spirit of Free Software, the institute published the objectives of the tests in
your site, so that different study methods can be developed.

This course is an example of a training method to help you achieve this level of knowledge. We also have super complete books, including a Linux certification book PIC 1.

Knowledge of systems of
GNU/Linux alone does not develop a master system administration master, but
For the manager who is hiring, having someone who passed the LPI test gives you
The certainty that he is hiring an administrator with a performance
additional and measured through certification.

Of course the contractor also
you can check the candidate’s potential with their former employers or teachers.
And why not also check the employee’s previous achievements as listed
on your resume? But the fact that the candidate passed the LPI exams
assures the employer that the candidate in question is certainly
a GOOD GNU/Linux system administrator.

For those who wish
study and develop a career in Systems Administration, please
feel safe using the objectives listed for each of the LPI exams and
Think of them as a good study guide with the information you should know. Dots
they were developed for system administrators and by administrators
of systems. So, even if you don’t intend to take the exams of
LPI formally, know that this material will make you a better administrator of
systems.

Finally, welcome
to this book, because it is a relatively cheap guide to studying and
achieve your goal of becoming a GNU/Linux system administrator
certificate.

It will not be the end of your learning, but a GOOD start.

Jon “maddog” Hall Executive Director Linux International

Jon Hall has been working in the computer industry since 1969, has been using the Unix system since 1977, and Linux since 1994.

He has been a software engineer, systems administrator, product manager, marketing manager, and professional educator.

Jon has been the executive director of Linux International since 1995, volunteering for the first four years. He has been employed by companies such as VA Linux Systems, Compaq Computer Corporation in the Digital UNIX Marketing group and also at Bell Laboratories, among other companies.

Before that, he was the head of the computer science department at Hartford State Technical College, where his students affectionately dubbed him “maddog.” Jon received a master’s degree in computer science from RPI in 1977 and a bachelor’s degree in commerce and engineering from Drexel University in 1973.

Jon “Maddog” Hall is one of the most internationally recognized personalities in the Linux movement. His job as a Linux ambassador involves traveling around the world in meetings with large corporations, institutions, and committees to consolidate open standards for the industry, representing the interests of major projects on this platform.

He is also the author of the books:

– Red Hat Linux 9 for Dummies
– Red Hat Linux 8 for Dummies
– Linux for Dummies
– Linux for Dummies, Second Edition
– Linux in a Box for Dummies
– Red Hat Linux Fedora for Dummies
– Red Hat Fedora Linux 2 For Dummies
– Red Hat Linux Fedora Desktop Kit for Dummies

– Beowulf Cluster Computing With Linux (Scientific and Engineering Computation)