New Products
The good folks at RotateRight informed us that their system-wide performance profiler for Linux, Zoom, has been updated to version 1.3. Zoom profiles are system-wide and precise down to the instruction level, and they capture backtraces. Zoom also analyzes and annotates code with specific tuning advice for most compilers and processors. The latest product update features a number of enhancements to help increase programmer productivity and optimize Linux application performance, both of which reduce costs by making software faster and more energy-efficient. These include support for Intel Atom and Core i7 processors, ability to show kernel source and assembly, support for external debug info files, calculation of symbol ranges when missing symbol information and several others. Zoom is available for Linux x86-64, i386 and PowerPC 64.
Sans Digital's new AccuSTOR AS212X2 Series is a 2U 12-bay SAS enclosure for mid-range and high-capacity storage environments. Sans Digital headlines the product as the first JBOD rackmount to overcome the lack of monitoring ability when utilizing a RAID controller card. A built-in selectable switch allows hardware monitoring via various popular brands of RAID controller interfaces. This new monitoring feature, says Sans Digital, “further simplifies the management process by allowing system administrators to access hard drive status, as well as power supply and cooling fan information”. Data is protected by RAID protection provided by LSI, 3ware, Intel, Dell, ATTO, Areca or Adaptec SAS RAID controllers. The AS212X2 uses the latest SAS expander technology to connect up to 12 high-performance SAS drives or high-capacity SATA drives to the host computer using a single SAS cable, enabling a system bandwidth of up to 1,200MB/s.
The SheevaPlug is one of the diminutive yet powerful devices in Marvell Semiconductor's “Plug Top Computing” initiative, a computing approach that features embedded, Linux-powered computers that plug in to electrical sockets. These devices, says Marvell, consume less than 5 Watts, can be left on all the time and “are capable of running network-based services that normally require a dedicated [PC]”. These services include Web, e-mail and VPN servers hosted in homes and small offices. SheevaPlug features a 1.2GHz Marvell Sheeva CPU and 512MB each of Flash and DDR2 memory. Network connectivity is via Gigabit Ethernet; peripherals can be connected using USB 2.0. The SheevaPlug development kit contains the SheevaPlug and software tools needed to develop applications for the platform.
The open-source app Magento is one of the most evolved e-commerce solutions out there. For those starting a project from scratch, William Rice's new book, Magento Beginner's Guide, from Packt Publishing could be the ticket to success. Running on Apache-MySQL-PHP, Magento offers features such as multiple storefronts, templates and themes and multiple payment gateways (such as PayPal and credit cards). Because getting started with Magento can be daunting, Rice's book offers a step-by-step guide to getting a store up and running. It covers installation, configuration, populating a store with products, accepting payments, maintaining relationships with customers and fulfilling orders. After utilizing the book, readers will have a basic but complete and functional on-line store.
Realize your clandestine plan to develop the next runaway hit game with Luke Benstead's Beginning OpenGL Game Programming, 2nd Ed., from Course Technology PTR. The book provides “an easy-to-understand introduction to OpenGL, introducing all the basic elements of OpenGL as they apply to games”, says the publisher. In addition, the new 2nd edition covers features found in OpenGL 3.0, the new and more efficient API that provides Direct3D 10 level graphics and is platform-independent. A companion CD-ROM features the source code used in the book, bonus chapters, games and the OpenGL Extension Library. Target readers are beginning game developers or programmers who are new to game development.
James Gray is Products Editor for Linux Journal
Realizing the promise of Apache® Hadoop® requires the effective deployment of compute, memory, storage and networking to achieve optimal results. With its flexibility and multitude of options, it is easy to over or under provision the server infrastructure, resulting in poor performance and high TCO. Join us for an in depth, technical discussion with industry experts from leading Hadoop and server companies who will provide insights into the key considerations for designing and deploying an optimal Hadoop cluster.
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Every security policy provides guidance and requirements for ensuring adequate protection of information and data, as well as high-level technical and administrative security requirements for a system in a given environment. Traditionally, providing security for a system focuses on the confidentiality of the information on it. However, protecting the data integrity and system and data availability is just as important. For example, when processing United States intelligence information, there are three attributes that require protection: confidentiality, integrity, and availability.
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| Dynamic DNS—an Object Lesson in Problem Solving | May 21, 2013 |
| Using Salt Stack and Vagrant for Drupal Development | May 20, 2013 |
| Making Linux and Android Get Along (It's Not as Hard as It Sounds) | May 16, 2013 |
| Drupal Is a Framework: Why Everyone Needs to Understand This | May 15, 2013 |
| Home, My Backup Data Center | May 13, 2013 |
| Non-Linux FOSS: Seashore | May 10, 2013 |
- Dynamic DNS—an Object Lesson in Problem Solving
- Making Linux and Android Get Along (It's Not as Hard as It Sounds)
- Using Salt Stack and Vagrant for Drupal Development
- New Products
- A Topic for Discussion - Open Source Feature-Richness?
- Drupal Is a Framework: Why Everyone Needs to Understand This
- Validate an E-Mail Address with PHP, the Right Way
- RSS Feeds
- Readers' Choice Awards
- Tech Tip: Really Simple HTTP Server with Python
Enter to Win an Adafruit Pi Cobbler Breakout Kit for Raspberry Pi

It's Raspberry Pi month at Linux Journal. Each week in May, Adafruit will be giving away a Pi-related prize to a lucky, randomly drawn LJ reader. Winners will be announced weekly.
Fill out the fields below to enter to win this week's prize-- a Pi Cobbler Breakout Kit for Raspberry Pi.
Congratulations to our winners so far:
- 5-8-13, Pi Starter Pack: Jack Davis
- 5-15-13, Pi Model B 512MB RAM: Patrick Dunn
- 5-21-13, Prototyping Pi Plate Kit: Philip Kirby
- Next winner announced on 5-27-13!
Free Webinar: Hadoop
How to Build an Optimal Hadoop Cluster to Store and Maintain Unlimited Amounts of Data Using Microservers
Realizing the promise of Apache® Hadoop® requires the effective deployment of compute, memory, storage and networking to achieve optimal results. With its flexibility and multitude of options, it is easy to over or under provision the server infrastructure, resulting in poor performance and high TCO. Join us for an in depth, technical discussion with industry experts from leading Hadoop and server companies who will provide insights into the key considerations for designing and deploying an optimal Hadoop cluster.
Some of key questions to be discussed are:
- What is the “typical” Hadoop cluster and what should be installed on the different machine types?
- Why should you consider the typical workload patterns when making your hardware decisions?
- Are all microservers created equal for Hadoop deployments?
- How do I plan for expansion if I require more compute, memory, storage or networking?




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