Letters to the Editor
After typing in the source code for xhello.c (July 1997, page 71), I tried to compile it using the author's suggested command line. Unfortunately for me it didn't work. I received a very vexing error from /usr/lib/libforms.so complaining of undefined functions. After fighting it a bit more, I decided to look at forms.ps and found a difference between the command line suggested in the manual and the author's. To make a long story short, this command line worked on my system:
gcc -o xhello xhello.c -lforms -lX11 -lm
It has all the same elements as the author's, only in a different order. I am running a Slackware '96 system with kernel version 2.0.30, Xfree86 3.3 and xforms 0.86. I guess I'll go with what works.
—Nate Bargmann email@example.com
First off, I would like to congratulate you on a job well done. It is a credit to the Linux community to have such a well-written and timely publication devoted to it.
I was wondering if any development has been done on integrating NDS (Novell Directory Services) into Linux? Novell has recently announced the release of the NDS source code to developers. Sun, HP and SCO have taken the hint and announced that each will provide NDS support in upcoming releases of their OSs. I have yet to find a place where Linux does not have the potential to replace a commercial operating system, and I think that support of a commonly used directory service would give a network manager even one more reason to use Linux instead of SCO ODT, Solaris, HP-UX or Netware.
—Tim McQueen firstname.lastname@example.org
Caldera is in the process of porting both NDS and NetWare File and Print services to Linux. Both these technologies currently require Streams, so Caldera is building the necessary infrastructure into Linux to port these technologies. For more information, please e-mail Caldera at email@example.com.
I have been unable to follow current chip discussions on the Net on the basis of these two new technologies: AMD's K6-233MHz with MMX processors and Intel Pentium II, 233&266MHz with MMX processors
Are these technologies compatible with Linux? Is MMX programming likely to be taken advantage of in Linux?
—Michael T. McGurty firstname.lastname@example.org
In answer to your first question, yes. Intel and AMD design backward compatability into all new processor chips to assure software compatability.
As to the second, Linux programming is likely to use advanced MMX technology sometime in the future, but I have no answer as to when—hopefully, this year. Of course, compatablity with the installed user base is a concern. It would have to be a kernel option. Multimedia extensions (MMX) optimize graphical video display (X Windows) and sound subsystems performance.
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