Open Source Licensing: Software Freedom and Intellectual Property Law by Lawrence Rosen
Software licenses are like pluggable authentication modules—bad to try to re-implement yourself but important to get right if you want to be secure. Technology attorney Lawrence Rosen offers a manageable introduction to the subject in this book. If you ever have trouble getting the right to use free software at work because of license concerns, buy a copy of this book. If your company is planning to release free software, Open Source Licensing gives you the background to get the most out of your meetings with a lawyer about the license.
This book is a useful field guide to the rights and obligations that the common free software licenses offer and their strengths and weaknesses. It also covers the essentials of copyright and patent law as they apply to software. Rosen also introduces his new licenses, the Open Software License and Academic Free License, which he says fix yet-unexploited legal bugs in older licenses.
For someone who was motivated to write his own set of software licenses, Rosen is generous to the industry-standard GNU General Public License (GPL). He gives the GPL a clean legal bill of health, which makes this book helpful when deciding to use and contribute to GPL-covered software. But he does offer a clear explanation of why a software author would want the additional teeth that his new licenses offer. By binding users to a contract, he lets the licensor set the venue for any lawsuit over the license, insist on attorney's fees and obtain other advantages in court.
This book does an especially good job of covering how the common open-source licenses handle software patent threats and the differences in the patent defense measures in each license. However, it would have been helpful to include a discussion of one approach that patent holders have taken when contributing patented methods to GPL software—offering a patent license separate from the GPL but ostensibly compatible with it. Linux contributions from IBM, Red Hat and FSMLabs are licensed this way, under three different patent grants.
Although the book is strong on the legal side, it's weak on what many consider the overwhelming network effects of the GPL and the advantages of keeping new projects compatible with the existing universe of GPL code. It's surprising that a 2004 book that covers both the Mozilla Public License and the issue of relicensing doesn't mention that Mozilla began relicensing to include the GPL in 2001.
The business decisions about what software license to adopt are yours, and this book's power to dispel Fear, Uncertainty and Doubt about licenses and bring FUD victims into the software commons is invaluable. Reading Open Source Licensing is an ideal first step in the license decision process.
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.
Join Linux Journal's Mike Diehl and Pat Cameron of Help Systems.
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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