Showing headlines posted by Scott_Ruecker

OpenFlow was initially introduced in the academia as a way to enable innovation on production networks which had traditionally been built with close and proprietary networking hardware. OpenFlow offloads the high-level routing/forwarding decisions (control plane) from networking devices such as switches, and moves the control plane on to a separate controller. The networking devices then simply forward traffic, as instructed by the external OpenFlow controller. It is the OpenFlow protocol that is used by the OpenFlow controller to program the networking devices.

Each of these app development frameworks supports HTML5 or JavaScript as well as CSS, and is open source with at least some version of a free app. If you’re developing Android-based games or complex apps with extensive cloud integration, you’ll probably want to seek out native application development tools. These range from the Java-oriented Android SDK and Android Development Tools (ADT) Eclipse plugin to game-oriented engines like Corona to commercial enterprise platforms like the cloud-oriented Monaca toolsuite.

Google's push for all websites to be HTTPS has so far been all carrot. But the company is now using its big stick: a large red cross through every website that doesn't offer an encrypted connection. A year after Google's Chromium Security team proposed marking all HTTP sites which are non-secure, the company is preparing to implement the policy in Chrome.

Girl Develop It is a national non-profit that provides technical education for women—and Sarah Kahn is a co-leader of Raleigh’s local chapter. In this video, she responds to a question she receives quite often: Why don’t more women attend technical conferences and other events? "If you want more women to come to your event, make it friendly," Kahn tells her audience, just before offering fives ways to do so: make the event accessible, post (and enforce) a code of conduct, publicize via non-traditional communication platforms, build networks, and extend personal invitations.

Shenzhen Xunlong launched a $10, Linux- and Android-friendly “Orange Pi One” hacker board with a quad-core Cortex-A7 SoC and a Pi-compatible expansion port. Even with competition from the $9 Chip and $5 Raspberry Pi Zero, 2015’s biggest price/performance breakthrough among open-spec SBCs was arguably the $15 Orange Pi PC. Unlike the single-core Chip and Zero, the Orange Pi PC delivered the performance goods with a quad-core Cortex-A7 Allwinner H3 SoC, while offering more ports, including HDMI, Ethernet, quad USB, and Pi-compatible expansion. Now Shenzhen Xunlong has spun a similar, stripped down Orange Pi One variant for only $10 — or $13.77 if you want it shipped to the U.S.

Last week, I lucked into 30 minutes on the phone with one of my favorite people: author, speaker, blogger, and activist Cory Doctorow. Our conversation ran the gamut—from open source's role in building a better future, to the function of science fiction literature today, to Cory's preference for prose over code. At one point, Cory offered a rather succinct and evocative explanation of what motivates people to contribute to open source projects. And what he said got me thinking about open organizations.

Our series of articles by Google Code In students continues with this review of graphing applications KmPlot by Andrey Cygankov. Studying maths, I often work with functions and graphs. Graph plotter KmPlot is a great help with this. A list of its features shows it can do enough to solve even the most difficult tasks.

Learn to set and check disk quotas on your Linux filesystems to prevent individual users from using more space than allowed and to prevent whole filesystems from filling up unexpectedly. You can use the material in this tutorial to study for the LPI 101 exam for Linux system administrator certification, or just to learn about quotas.

Open source software contributions often spring from passion—the passion to give back to the community, or simply the burning desire to create something new. The same passion that drives individual contributors also drives the team behind IndiaHacks to help develop the skills and networks of those individual contributors.

Microsoft has embraced Linux on its Azure cloud for some time now. Debian, Red Hat Enterprise Linux (RHEL), and Ubuntu are all supported on Azure. Now, Microsoft is taking the next step: It's adding Ubuntu to the first public technical preview of Azure Stack, its customized private and hybrid cloud bundle.

A fast site is more sustainable and typically more efficient with happier users who can find what they need quickly and easily. Just because a site isn't fast doesn’t mean, however, that it is easy to maintain. How do you balance the need for speed with the convenience of easy maintenance? In this post we’ll talk about how you can optimize WordPress, an open source content management system (CMS), to meet both needs.

We narrow down the very best home theatre distros out there to make your choice a little easier.

In this week's Top 5 articles of the week, we highlight five interviews with presenters of this year's Southern California Linux Expo—SCaLE 14x. Of the 19 total interviews and articles published on Opensource.com for this series, the most popular topics were: Kubernetes, Docker, patents, DevOps at scale, strace, and OpenStack for beginners.

Open organizations explicitly invite participation from external communities, because these organizations know their products and programs are world class only if they include a variety of perspectives at all phases of development. Liaising with and assisting those communities is critical. And community calls are my favorite method for interacting with stakeholders both inside and outside an organization. In this article, I'll share best practices for community calls and talk a little about how they can spur growth.

Owen DeLong is a Senior Manager of Network Architecture at Akamai Technologies, a leader in content delivery network (CDN) services that help to make the Internet "fast, reliable, and secure." He will be speaking at SCaLE 14x about IPv6 adoption (because we're out of IPv4!). Owen is also a member of the ARIN Advisory Council—an advisory group to the Board of Trustees on Internet number resource policy and related matters—and is an active member of the systems administration, operations, and Internet Protocol policy communities.

In this tutorial, I will guide you trough the Graylog2, Elasticsearch and MongoDB installation to build a scalable log server node with advanced log search capabilities. I will use Ubuntu 15.10 for this installation. Elasticsearch is a distributed search server based on Lucene that is available as OpenSource software. Graylog2 is a centralized log management and log analysis framework based on Elasticsearch and MongoDB.

This article was co-written by Josh Berkus. At SCaLE 14x, we will give a talk focused on helping speakers provide a more positive experience for their audiences. But there are many different facets of conference organizing that could use improvements, each facet with its own audience. In this article, I will focus on just one of those: How conference organizers can make the event more positive for the attendees.

If you manage a business which deals with physical goods, supply chain management is an important part of your business process. Whether you're running a tiny Etsy store with just a few customers, or a Fortune 500 manufacturer or retailer with thousands of products and millions of customers worldwide, it's important for you to have a close understanding of your inventory and the parts and raw materials you need to make your products.

At a recent meeting, I had the pleasure of hearing Dr. Curt Carver, CIO at the University of Alabama at Birmingham, speak on the priorities (and challenges) for today's CIOs. Themes from his talk were familiar, but important: CIOs must help the business grow, gain competitive advantage, and remain secure. He also emphasized many challenges: IT skill set, modernizing IT while keeping the lights on, and maintaining security and compliance.

If you've ever wondered what Android would look like as a desktop PC OS, then try this for size: Remix OS from China. It's a very rough-around-the-edges build of Android x86–an ongoing port of Google's open-source OS from ARM gadgets to x86 PC's–with some closed-source stuff to create a multi-tasking desktop with moving windows, an application bar, and so on, but with Android's look-and-feel. It tries its best to map keyboard shortcuts and mouse movements to the normally fingertip-driven user interface.