11: San Jose Mercury News
12: Jupiter Media Metrix, www.jmm.com
13-15: LJ senior editor
The Royal Danish Navy is going to sea with applications developed on Linux but running on the Linux-compatible, real-time LynxOS from LynuxWorks (lynuxworks.com). “The Linux interfaces are becoming the real-world definition of open systems”, said Dr. Inder Singh, LynuxWorks' CEO.
“LynxOS is very unique in being a hard real-time operating system that is ABI-compatible with Linux”, he added. The Royal Danish Navy doesn't even need to recompile to move applications from Linux-based development systems onshore to the LynxOS platform on ship.
LynxOS has been on the market for more than a decade and was designed into Space Station Freedom before the project was re-organized as the International Space Station. It is also used in Airbus jets. On the ground, LynxOS is also used on HP LaserJet printers and Xerox copiers.
“Requirements for certification are pretty strenuous”, Singh said. Extensive documentation is required, and no Linux-based system has yet been certified for real-time space or military use. “There have been many attempts, but no one has been able to get one certified”, Singh said.
Observers of Linux's inexorable progress add, “Yet”.
The entertainment industry's war with technology goes back a long way. In 1984, MPAA Chairman Jack Valenti said, “The VCR is to the American film producer and the American public what the Boston Strangler is to a woman home alone.” But we can trace the current system of fears and balances back to 1908, when music publishers claimed player piano rolls violated music copyrights. That case lost in the Supreme Court, but the industry prevailed on Congress to establish the “mechanical license”, which established the right to reproduce published music in return for a regulated royalty. In 1931 some music composers claimed that a hotel's radio station violated copyrights by playing their music. The composers lost that one. In the 1960s, book publishers failed in their suit against photocopiers, but the Supreme Court ruling on the case allowed “fair use” of published works. In the late 1960s and early 1970s, broadcasters took on Community Antenna Television or CATV. (The movie industry was also involved, forcing theater employees to wear buttons that said “Fight Pay TV”.) Supreme Court rulings on two cases opened the way for the cable TV systems we have today. So it's clear we're still in this fight for the very long haul.
But at least we can pause to observe two current victories for technology over those who would control it: the launch of Creative Commons and the Librarian of Congress' rejection of CARP's (Copyright Arbitration Royalty Panel) recommendations for imposing stiff requirements and performance use fees on internet radio stations.
Creative Commons (www.creativecommons.org) was launched at the O'Reilly Emerging Technologies Conference in Santa Clara, California, on May 16, ending months of quiet development. It is led by Lawrence Lessig, Stanford Law professor and author of two highly influential works (Code and Other Laws of Cyberspace and The Future of Ideas), both of which argue against the entertainment industry's constant campaign to bend copyright law in their favor and to replace the Internet's commons with a highly regulated system for the supply-controlled distribution of “content”.
The project lives at Stanford University, where it is highly involved with the Stanford Law School Center for Internet and Society. It also receives what it calls “generous support” from the Center for the Public Domain (formerly the Red Hat Center), which is headquartered at Duke University and chaired by Red Hat founder Bob Young.
Rather than simply lobbying against the entertainment industry, Creative Commons offers concrete solutions to the first sources of creative goods: the artists themselves. In his speech to the conference Lessig said,
This content that the law says is mine, I should be able to make available on my own terms. We need machine-readable expressions of the author's intentions about the nature of the content. The world should not be divided between those who believe in control and those who believe in access. Those who want both, on an individual level, should be able to compromise.
While Creative Commons was in development, internet radio, which includes thousands of stations (many of them making resourceful use of Linux and other open-source software), was under severe threat by the CARP's recommendations, which were issued in February 2002 and widely expected to knock most stations off the air. If adopted, the CARP recommendations would have become regulatory fact on May 22, 2002. But on May 21, the Librarian of Congress issued an “order rejecting the panel's determination”, which would become final one month later. Stations and advocacy groups like SaveInternetRadio.org breathed a public sigh of relief.
But the issue is far from resolved. CARP is a creature spawned by the Digital Millennium Copyright Act, which is still in force. More importantly, the whole idea of the Commons is still not well understood—especially on Capitol Hill, where the influence of the entertainment industry remains enormous.
In his speech Larry Lessig said, “We will never succeed in advocating the importance of this space until ordinary people get it. And they won't until technologists begin to express to politicians how important these values that they built into technology are to freedom and creativity.”
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.
Free to Linux Journal readers.Register Now!
- Stunnel Security for Oracle
- SourceClear Open
- Murat Yener and Onur Dundar's Expert Android Studio (Wrox)
- SUSE LLC's SUSE Manager
- My +1 Sword of Productivity
- Managing Linux Using Puppet
- Google's SwiftShader Released
- Non-Linux FOSS: Caffeine!
- Parsing an RSS News Feed with a Bash Script
- SuperTuxKart 0.9.2 Released
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