Linux

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Linux Dice Talent Community

This community’s intended to promote growth and collaboration in the Linux world specifically, but also throughout the Open Source world. We aim to offer insightful observations from Dice bloggers as well professionals in the field, guidance to fundamentals and best practices, links to resources and answers to your questions.

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The Latest News From Dice

From Linux Sys Admin to Programmer in 3 Easy Steps

C Programming
We got an email from a Dice user: “I’d like to move from Linux systems administration to programming. What’s the best way to make a smooth transition?” He’s in a good place. His knowledge of Linux servers, the Linux command line, distribution and tools will serve as a solid foundation for a career in programming and development. Plus, learning how to program the Linux kernel will boost his market value and help him capitalize on the growth of DevOps, notes… continue…

PHP vs. .NET: Which Should You Learn?

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If you’re a software developer, there simply isn’t enough time in the world to learn every single technology, language and platform you might need for work, or to land a better job; at some point, you’re going to have to decide in what direction you want to expand your knowledge base. The choices you make in that regard will have a huge impact on your life. If you devote too much time to learning a technology that’s on the verge… continue…

Using Netcat to Read, Write Data Across Your Network

Posted In Linux, Working in Tech
Wi-Fi Testing
Testing a network connection or troubleshooting a data flow is a common job for the system admin or developer. One tool they can take advantage of: the Netcat command line program, which provides a quick way to read and write data between two devices over a TCP/IP network. I recently used several flavors of Netcat to help me develop a servo control program between the new Arduino Yun and a simple companion slider application, written in Processing, on my Linux… continue…

How to Run a Linux Terminal on Your Android

Samsung Galaxy S3 smartphone thumbnail
Lots of developers, programmers and systems people run SSH, allowing them access to their remote Linux systems. While a remote terminal on your Linux notebook is useful if you have your notebook at hand, having the capability on your Android smartphone is pretty darned convenient, especially if you are two floors and 10 offices away from your desk and notebook. Today, we’ll talk about what you need to get it going. Most Linux systems, especially desktops, start SSH by default… continue…

Q&A: Why Linux Experts Are In Demand

Posted In Linux, Looking in Tech
Linux
We interviewed Jim Zemlin, Executive Director at The Linux Foundation, to get his take on the Linux Jobs Report recently compiled by the Foundation and Dice. Can you provide some details on what’s driving the need for Linux expertise? Linux is experiencing major growth across industries. In consumer electronics, it’s used to run TVs, Android phones and tablets, your washer, dryer and refrigerator. Even your crock pot. In the enterprise, Linux is the foundation for cloud computing and is powering data… continue…

Slashdot: News for Nerds

Print Isn't Dead: How Linux Voice Crowdfunded a New Magazine

posted 42 mins | from m-saunders

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M-Saunders (706738) writes The death of print has been predicted for years, and many magazines and publishers have taken a big hit with the rise of eBooks and tablets. But not everyone has given up. Four geeks quit their job at an old Linux magazine to start Linux Voice, an independent GNU/Linux print and digital mag with a different publishing model: giving profits and content back to the community. Six months after a successful crowdfunding campaign, the magazine is going well, so here is the full story.

MicroxWin Creates Linux Distribution That Runs Debian/Ubuntu & Android Apps

posted 2 days | from anonymous coward

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An anonymous reader writes VolksPC who developed MicroXwin as a lightweight X Window Server has come up with their own Linux distribution. Setting apart VolksPC's distribution from others is that it's based on both Debian and Android and has the capability to run Debian/Ubuntu/Android apps together in a native ARM experience. The implementation doesn't depend on VNC or other similar solutions of the past that have tried to join desktop apps with mobile Android apps. This distribution is also reportedly compatible with all Android applications. The distribution is expected to begin shipping on an ARM mini-PC stick.

Linux Needs Resource Management For Complex Workloads

posted 2 days | from storagedude

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storagedude writes: Resource management and allocation for complex workloads has been a need for some time in open systems, but no one has ever followed through on making open systems look and behave like an IBM mainframe, writes Henry Newman at Enterprise Storage Forum. Throwing more hardware at the problem is a costly solution that won't work forever, he notes.

Newman writes: "With next-generation technology like non-volatile memories and PCIe SSDs, there are going to be more resources in addition to the CPU that need to be scheduled to make sure everything fits in memory and does not overflow. I think the time has come for Linux – and likely other operating systems – to develop a more robust framework that can address the needs of future hardware and meet the requirements for scheduling resources. This framework is not going to be easy to develop, but it is needed by everything from databases and MapReduce to simple web queries."

New Mayhem Malware Targets Linux and UNIX-Like Servers

posted 4 days | from bismillah

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Bismillah writes: Russian security researchers have spotted a new malware named Mayhem that has spread to 1,400 or so Linux and FreeBSD servers around the world, and continues to look for new machines to infect. And, it doesn't need root to operate. "The malware can have different functionality depending on the type of plug-in downloaded to it by the botmaster in control, and stashed away in a hidden file system on the compromised server. Some of the plug-ins provide brute force cracking of password functionality, while others crawl web pages to scrape information. According to the researchers, Mayhem appears to be the continuation of the Fort Disco brute-force password cracking attack campaign that began in May 2013."

LibreSSL PRNG Vulnerability Patched

posted 5 days | from msm1267

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msm1267 writes: The OpenBSD project late last night rushed out a patch for a vulnerability in the LibreSSL pseudo random number generator (PRNG). The flaw was disclosed two days ago by the founder of secure backup company Opsmate, Andrew Ayer, who said the vulnerability was a "catastrophic failure of the PRNG." OpenBSD founder Theo de Raadt and developer Bob Beck, however, countered saying that the issue is "overblown" because Ayer's test program is unrealistic. Ayer's test program, when linked to LibreSSL and made two different calls to the PRNG, returned the exact same data both times.

"It is actually only a problem with the author's contrived test program," Beck said. "While it's a real issue, it's actually a fairly minor one, because real applications don't work the way the author describes, both because the PID (process identification number) issue would be very difficult to have become a real issue in real software, and nobody writes real software with OpenSSL the way the author has set this test up in the article."

KDE Releases Plasma 5

posted 6 days | from kde community

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KDE Community (3396057) writes "KDE proudly announces the immediate availability of Plasma 5.0, providing a visually updated core desktop experience that is easy to use and familiar to the user. Plasma 5.0 introduces a new major version of KDE's workspace offering. The new Breeze artwork concept introduces cleaner visuals and improved readability. Central work-flows have been streamlined, while well-known overarching interaction patterns are left intact. Plasma 5.0 improves support for high-DPI displays and ships a converged shell, able to switch between user experiences for different target devices. Changes under the hood include the migration to a new, fully hardware-accelerated graphics stack centered around an OpenGL(ES) scenegraph. Plasma is built using Qt 5 and Frameworks 5." sfcrazy reviewed the new desktop experience. It would appear the semantic desktop search features finally work even if you don't have an 8-core machine with an SSD.

OpenWRT 14.07 RC1 Supports Native IPv6, Procd Init System

posted 7 days | from anonymous coward

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An anonymous reader writes Release Candidate One of OpenWRT 14.07 "Barrier Breaker" is released. Big for this tiny embedded Linux distribution for routers in 14.07 is native IPv6 support and the procd init system integration. The native IPv6 support is with the RA and DHCPv6+PD client and server support plus other changes. Procd is OpenWRT's new preinit, init, hotplug, and event system. Perhaps not too exciting is support for upgrading on devices with NAND, and file system snapshot/restore so you can experiment without fear of leaving your network broken. There's also experimental support for the musl standard C library.

Prof. Andy Tanenbaum Retires From Vrije University

posted 2 weeks | from thijssss

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When Linus Torvalds first announced his new operating system project ("just a hobby, won't be big and professional like gnu"), he aimed the announcement at users of Minix for a good reason: Minix (you can download the latest from the Minix home page) was the kind of OS that tinkerers could afford to look at, and it was intended as an educational tool. Minix's creator, Professor Andrew Stuart "Andy" Tanenbaum, described his academic-oriented microkernel OS as a hobby, too, in the now-famous online discussion with Linus and others. New submitter Thijssss (655388) writes with word that Tanenbaum, whose educational endeavors led indirectly to the birth of Linux, is finally retiring. "He has been at the Vrije Universiteit for 43 years, but everything must eventually end."

CentOS Linux Version 7 Released On x86_64

posted 2 weeks | from anonymous coward

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An anonymous reader writes "Today, CentOS project unveiled CentOS Linux 7 for 64 bit x86 compatible machines. CentOS conforms fully with Red Hat's redistribution policy and aims to have full functional compatibility with the upstream product released in last month. The new version includes systemd, firewalld, GRUB2, LXC, docker, xfs instead of ext4 filesystem by default. The Linux kernel updated to 3.10.0, support for Linux Containers, 3d graphics drivers out of the box, OpenJDK 7, support for 40G Ethernet cards, installations in UEFI secure Boot mode on compatible hardware and more. See the complete list of features here and here. You can grab this release by visiting the official mirror site or via torrents. On a related note there is also a CentOS Linux 7 installation screencast here."