From the Editor: December 2004 - Great Entertainment Software
We normally don't bother with those “educational use only” disclaimers that other magazines slap on every article that might possibly be used for harm. Of course it's for educational use, and of course you're responsible for your own actions. But this issue, as we take on the tricky topic of entertainment, consider this an extended disclaimer.
Olexiy Tykhomyrov and Denis Tonkonog bring you an intro to Kino, a versatile editing package that supports plugins and uses XML to store its edit decision lists—the perfect tool for dealing with the high-quality footage from a digital camcorder (page 54). If you don't want to splash out for a camcorder, Marcel Gagné presents a smaller, cheaper, Webcam-based studio on page 30.
But, we have to admit that this issue is still missing a piece of the puzzle. Want to put the MPEG-4 videos you produce on a Web site that also has advertising? You'll need a lawyer and a contract with the ominous MPEG Licensing Authority. Where would the Web be if there were an “HTML Licensing Authority”?
There is hope. Check out theora.org for info on the patent-free Theora video format, which you can use as freely as HTML. We'll be bringing you more how-tos on staying patent-free; in the meantime, use MPEG for research only.
Although good news on software patents is still scarce, the software community, on both the free and proprietary sides, is aware of the danger and moving to contain patent damage. The Internet Engineering Task Force shut down its “Mail Transfer Agent Authentication in DNS” working group because of a threatened patent trap from one vendor. In the long run, that's the right decision. Meanwhile, the Sender Policy Framework (SPF) Project, led by Linux Journal author Meng Weng Wong, is still going strong—and patent-free. Popular Linux distributions are also scrupulous about leaving off patent-encumbered software.
Readers were enthusiastic about Meng's spam-fighting articles, so we're bringing you more. Clam AntiVirus came out of the blue to win an Editors' Choice Award for best security tool this year. With non-Linux systems on the company network, your Linux mail server needs to protect them from viruses too. Mick Bauer gives you a detailed look at Clam on page 36, and Robert LeBlanc shows how to integrate mail filtering into an easy-to-manage system that lets users fish their own false positives out of quarantine on page 84.
The software patent mess won't be over until governments realize that they're a bad bargain—that the transaction costs and free speech risks outweigh whatever benefits come from R&D incentives. While you keep your eyes open and your “letter to politicians” template handy, and watch swpat.ffii.org for things you can do for patent reform, don't forget why you love digital freedom, and do some fun and useful things with the great software in this issue.
Don Marti is editor in chief of Linux Journal.
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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- Stunnel Security for Oracle
- Murat Yener and Onur Dundar's Expert Android Studio (Wrox)
- SUSE LLC's SUSE Manager
- SourceClear Open
- Managing Linux Using Puppet
- My +1 Sword of Productivity
- Google's SwiftShader Released
- Parsing an RSS News Feed with a Bash Script
- Non-Linux FOSS: Caffeine!
- 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