Book Review: Red Hat Linux 9 Bible by Christopher Negus
At 1,000+ pages, calling this book a bible is not an exaggeration. Browsing its pages, I quickly realized that it is broken into three sections, the first oriented toward users, the second toward system administrators and the third toward networks. The book comes with three CDs for installing Red Hat Linux 9.
The first thing I look for in a book such as this is the section that explains what is new in Red Hat 9. The book explains it all on page 12, “Although you don't see it, the Native POSIX Thread Library is the most significant addition to Red Hat Linux 9 (and the main reason why the release is called 9 instead of 8.1).” Thank you. The book also details the components of Red Hat 9 that have been upgraded, dropped or whose days are numbered.
Chapter 2 is worth reading in-depth, especially for a novice to Linux, for grounding in the concepts before proceeding with the tasks. Chapters 3–9 cover the desktop, basic commands and how to run applications. These chapters help users who are a bit disoriented when faced with a new computing environment.
The important chapters in this book—dealing with system and network administration—are missing what most books on Linux system administration seem to miss: information about troubleshooting and gathering system information.
Chapter 13, “Backing Up and Restoring Files”, is comprehensive, and I especially enjoyed the discussion of mirrordir. The best thing about this chapter is many solutions are discussed, and the reader can select from several options. I also liked the quick reference charts for pax, dump and Amanda. This is not the only chapter with these charts; they are used liberally throughout the book and are quite handy.
Network services are easily a topic for a whole other book, and they consume more than a third of this book. Chapter 15 discusses setting up a LAN and includes information on wireless networks, which to me makes it timely and useful. I'd call this a handy reference to consider and keep available, especially for those new to Linux.
Practical Task Scheduling Deployment
July 20, 2016 12:00 pm CDT
One of the best things about the UNIX environment (aside from being stable and efficient) is the vast array of software tools available to help you do your job. Traditionally, a UNIX tool does only one thing, but does that one thing very well. For example, grep is very easy to use and can search vast amounts of data quickly. The find tool can find a particular file or files based on all kinds of criteria. It's pretty easy to string these tools together to build even more powerful tools, such as a tool that finds all of the .log files in the /home directory and searches each one for a particular entry. This erector-set mentality allows UNIX system administrators to seem to always have the right tool for the job.
Cron traditionally has been considered another such a tool for job scheduling, but is it enough? This webinar considers that very question. The first part builds on a previous Geek Guide, Beyond Cron, and briefly describes how to know when it might be time to consider upgrading your job scheduling infrastructure. The second part presents an actual planning and implementation framework.
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With all the industry talk about the benefits of Linux on Power and all the performance advantages offered by its open architecture, you may be considering a move in that direction. If you are thinking about analytics, big data and cloud computing, you would be right to evaluate Power. The idea of using commodity x86 hardware and replacing it every three years is an outdated cost model. It doesn’t consider the total cost of ownership, and it doesn’t consider the advantage of real processing power, high-availability and multithreading like a demon.
This ebook takes a look at some of the practical applications of the Linux on Power platform and ways you might bring all the performance power of this open architecture to bear for your organization. There are no smoke and mirrors here—just hard, cold, empirical evidence provided by independent sources. I also consider some innovative ways Linux on Power will be used in the future.Get the Guide