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Operating Systems / Linux/Open Source

TechTip: Drivers, Start Your Nginx!

Nginx (pronounced Engine-X) is a very popular web server, second only to Apache in the open-source world. Did you know it runs on IBM i?

aaron bartellWritten by Aaron Bartell

"Put on your big-boy pants!" is what they told me. "Dig deeper and figure stuff out for yourself!" they said. Based on the feedback I was getting from online forums, I realized I needed to step up my game in my first open-source ventures. Those were some tough days for my RPG programmer brain, but I stuck with it. Now I see the advantages of going through many mud puddles.

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The Keys to Linux Security

Linux has a reputation for stability and security. Keep it that way by following a few simple principles.

barry klineWritten by Barry L. Kline

Linux and other UNIX-like operating systems, such as FreeBSD, have always been considered among the most secure and robust operating systems available. According to, UNIX (including Linux) serves up pages from 66.9% of the Internet's websites (as of December 21, 2013) with Linux's share being 31.7%. With that kind of exposure, security is truly the premier requirement and Linux can certainly deliver it.

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Is IBM i Access for Linux Right for Your Shop?

IBM has been notable in its support for the Linux operating system and open-source software in general, so the lack of the package would be ridiculous. But is it right for your shop? That depends.

barry klineWritten by Barry L. Kline

When the IBMers determined that their AS/400 midrange line required a facelift if it was to survive in the new world of GUI-based servers, they turned first to the most obvious part: the interface. We old-timers are quite satisfied using the green-screen command line. It was and still is productive and bulletproof. Unfortunately, many newcomers to the platform find it cumbersome compared to their preferred point-and-click interfaces. I don't want to start any flame wars between the two camps. We old-timers know that our command line is superior, so arguing is pointless. But I digress.

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If It Ain't Broke, Don't Fix It

Is that the right philosophy to follow? Or should you not put off till tomorrow what you can do today? For the answer, think "upgrade."

barry klineWritten by Barry L. Kline

If it ain't broke, don't fix it.


That old adage has been around since the Carter administration. The down-home advice seems so logical and obvious that everyone may feel compelled to follow it. I know that with my busy schedule, it's easy for me to put off updating software on working systems when there are far more pressing projects to tackle. If you're willing to admit it, you probably can point to a system or two under your control that could use some tender, loving care. Unfortunately, following the "if it ain't broke" philosophy can readily lead to minor irritations and downright spectacular failures. You'd think that 30 years in this business would have provided me with enough opportunities to learn this lesson and that I would have it indelibly imprinted in my mind. But no, I fell into the trap once again.

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Understand Your Remote Git Repository Options and Choose the Best Solution for You

Learn how to support a multiple-developer version-control environment using source-code hosting for git repositories.

tom snyderWritten by Tom Snyder

Has your shop begun using multiple programming languages? The implementation of new options may not be on the top of the priority list. Code can be developed, priorities could change, staff could change, and by the time you go back to complete something you initiated a few months ago or try to find the source code for something that is deployed, you may have difficulty determining where the source code is or what version was actually deployed. This is where git can help.

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Power to the People!

The open-source operating system gets a Powerful boost.

barry klineWritten by Barry L. Kline

In my last article, "Starting Your Sojourn into Virtualization on the Linux OS," I discussed the "no additional purchase necessary" virtualization that is embodied in the Linux Kernel-based Virtual Machine, referred to as KVM. For single-server use, such as I described with my co-located Web server, KVM is all that's required to take full advantage of the powerful commodity server hardware currently available. Larger shops, which need the bells and whistles of more sophisticated virtualization (physical machine pooling, guaranteed performance per server, etc.), generally move up to VMWare and its enterprise products, with their matching enterprise price tags.

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Linux Foundation Focuses on Training in 2012

As the demand for IT professionals with Linux experience soars, training programs are moving to front and center for the non-profit organization charged with promoting the open-source platform.

chris smithWritten by Chris Smith

The market for developers with Linux experience has been increasing during the past year, and, with the advent of cloud technology, there is also a growing need for Linux system architects.


The Linux Foundation, a nonprofit consortium founded in 2007, is charged with helping to promote and further the adoption of the Linux operating system. It provides a vendor-neutral forum for collaboration and education. It hosts Linux conferences, including LinuxCon (August 29–31, 2012, San Diego), and sponsors original research, messaging, and training to help advance a broader understanding of the Linux platform.

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Starting Your Sojourn into Virtualization on the Linux OS

It's important to know what your options are.

barry_klineWritten by Barry L. Kline

I have long been a fan of hardware virtualization, so when I purchased a new server to replace an aged one, I decided that it would be advantageous to make it a virtual host. The benefits of virtualization are now well-known to the IT community, and for my purposes, the biggest win is the ability to deploy new virtual servers quickly, while not having to make the two-hour trip to the co-location facility. What the heck? If hardware virtualization is good enough for cloud providers, then it should be good enough for me too!

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