Where do you find Linux?
Looking through my home for Linux systems I just realized that it is everywhere. First of all, I find it on my computers - from servers to laptop. That is the obvious place though. I wonder, where else can I find Linux running?
Next, I find it on my set-top-box, a DM500 - a dreambox. The dreamboxes range from my very basic PAL receiver to devices with multiple receivers and HD-support. All are based on a Linux system running on a PowerPC processor. The box has networking and there is community driven development version of the software running on the box. The result - I can stream TV to my laptop, play content from my server and set record timers over the internet.
Then, looking further, there is a cell phone. Not mine actually, but my wife has an Android phone, so that has to count. Not as hackable as I'd like. I just might have to get a N900 to remedy this situation. Any phone with a shell prompt is a must have :-)
Realizing that I missed the obvious - my router. The LinkSys WRT54-something router happily runs Linux. Actually, it is running (a rather old) image from the OpenWrt project. OpenWrt can be considered as a distribution for Linux-based routers. I can't boast about having configured and extended it to prepare my morning coffee - but the community driven images can handle features such as printer sharing and NAS in addition to being a great DHCP server and firewall.
Looking in my daughters room, I can't find Linux anywhere - at least not yet. However, a small Tux sits on a shelf.
Image courtesy of: Larry Ewing, Simon Budig and Anja Gerwinski.
Johan Thelin is a consultant working with Qt, embedded and free
software. On-line, he is known as e8johan.
Practical Task Scheduling Deployment
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.View Now!
|The Firebird Project's Firebird Relational Database||Jul 29, 2016|
|Stunnel Security for Oracle||Jul 28, 2016|
|SUSE LLC's SUSE Manager||Jul 21, 2016|
|My +1 Sword of Productivity||Jul 20, 2016|
|Non-Linux FOSS: Caffeine!||Jul 19, 2016|
|Murat Yener and Onur Dundar's Expert Android Studio (Wrox)||Jul 18, 2016|
- Stunnel Security for Oracle
- The Firebird Project's Firebird Relational Database
- SUSE LLC's SUSE Manager
- Murat Yener and Onur Dundar's Expert Android Studio (Wrox)
- Managing Linux Using Puppet
- My +1 Sword of Productivity
- Non-Linux FOSS: Caffeine!
- Doing for User Space What We Did for Kernel Space
- SuperTuxKart 0.9.2 Released
- Google's SwiftShader 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