Yes, dear Reader, yet another book, based on the mildly presumptuous assumption that you love them as much as I. If the Ubuntu distro is your fancy, you'll be happy as a clam, for an avalanche of great Ubuntu books hits booksellers this summer and autumn. Naturally, I must insert a shameless plug for my friend and fellow LJ editor, Marcel Gagné whose title Moving to Ubuntu Linux should be available sometime around now. However, the focus of this blurb is a title from Tim O'Reilly's library, namely Ubuntu Hacks from the trio of Bill Childers, Jonathan Oxer and Kyle Rankin. All three authors are self-described “passionate Ubuntu and Kubuntu users”. The book is timely because, without a doubt, Ubuntu is far and away the hottest distro out there and one of the most active hubs of Linux-based innovation. Ubuntu Hacks is meant to whet the appetite of true hackers, those whom the authors describe endearingly as “creative, having the technical chops to get things done.” Regardless of your level of expertise, the folks at O'Reilly Media say that this book will challenge you. It contains more than 100 different hacks, that is, creative ways to get the most out of your Ubuntu system, ranging from the basics through to mobile computing, X11 tweaks, virtualization and emulation, SOHO-level servers, security and more.
Imagine you're a small nontechnical retailer who wants to integrate your internal systems with an eBay on-line store. What do you do? One option is to hire a team of coders and developers to do the job. Jitterbit aims to make that solution superfluous and allow you to accomplish complex integrations on your own—all via drag and drop and without coding. The Jitterbit open-source integration application can be used to connect data from ERP and CRM applications, data warehouses, on-line marketplaces and so on. Some of the supported formats are Web services, XML, HTTP/S, FTP, ODBC, flat and hierarchic file structures and file shares. Customers can choose between two different editions: a free, community-supported edition and a professional edition, complete with enterprise-level support and services. The Jitterbit Community Edition for Linux or Windows is available for free download at the company's Web site.
2X wants to bring joy to managing your Windows desktops by turning them into Linux ones—without users suspecting a thing! The company's ThinClientServer, just upgraded to Version 3, is a tool for centrally managing your network's desktops via thin client—that is, both existing “fat” PCs and thin-client devices from any vendor. 2X's approach is to deploy a secure, self-updating, small-footprint, Windows-mimicking Linux desktop to each client, which allows for central administration (Active Directory, LDAP) of users' connection and device hardware settings (RDP/ICA/NX, screen size and so forth), as well as which Windows apps are available. Windows apps are tunneled to clients either via the firm's application server or Citrix Metaframe. The upshot, says 2X, is that you avoid the technical and financial hassles of Windows; desktop administration is simplified (backup, updates and patching and so on); and unauthorized use of removable media is impossible. A free, five-client version can be downloaded from 2X's Web site.
Penguin Computing recently expanded its line of Relion servers, which it targets at customers with memory/CPU-intensive, highly scalable, high-performance computing needs. The Relion 1600 (1U) and 2600 (2U) servers offer the option of up to two of Intel's new Dual-Core Intel Xeon 5000-series processors per server and integrate the most up-to-date Intel server technologies for improved performance. The result, according to Penguin's people, is “twice the speed as previous designs within the same power and space parameters”, as well as reduced operating costs due to “cooler, more economical performance and greater workload capacity with dynamic, instantaneous CPU performance scaling.” These improvements are possible due to Intel's Demand Based Switching and SpeedStep technologies, which provide dynamic scaling of CPU performance depending on the application's workload. In addition, they enable automatic switching from full, dual-core, dual-CPU utilization to a bare minimum level of power consumption when idle. Relion servers support Red Hat or SUSE Linux operating systems.
James Gray is Products Editor for 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.
Free to Linux Journal readers.Register Now!
- Stunnel Security for Oracle
- SourceClear Open
- SUSE LLC's SUSE Manager
- Murat Yener and Onur Dundar's Expert Android Studio (Wrox)
- My +1 Sword of Productivity
- Managing Linux Using Puppet
- Tech Tip: Really Simple HTTP Server with Python
- Non-Linux FOSS: Caffeine!
- Google's SwiftShader Released
- Doing for User Space What We Did for Kernel Space
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