March 2007
Intermediate to advanced
304 pages
11h 12m
English
Content preview from Linux System Administration
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Chapter 1: Requirements for a Linux System Administrator
Together with our readers, editors, and reviewers, we hope we’ve decreased entropy
slightly in this little corner of the computing world.
Who Needs You?
A few years ago, most Linux system administrators would have told you that they
didn’t choose their careers—Linux chose them. In the old days, Linux was like an
adolescent Unix. Most Linux system administrators learned the ropes on single
workstations and very small networks. Linux inherited some servers from Unix
(BIND, Sendmail, Apache), but little office software and few applications. Today,
Linux system administration involves thousands of packages and interoperability
with other operating systems.
Who needs Linux administrators? The NASA Center for Computational Sciences
(NCCS) at the Goddard Space Flight Center does. Its Linux-based high-performance
computing (HPC) clusters are designed to dramatically increase throughput for appli-
cations ranging from studying weather and climate variability to simulating astrophysi-
cal phenomena. Linux supplements NCCS architecture designed to scale to as many as
40 trillion floating-point operations per second (TFLOPS) in its full configuration.
Linux runs more of the world’s top supercomputers than any other operating sys-
tem. In fact, as of this writing Linux runs an astonishing 75 percent of the top 500
supercomputers on the planet.
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According ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.