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Updated: 2 hours 42 min ago

What is a blockchain smart contract?

14 hours 37 min ago

The first thing to know about blockchain smart contracts is they're not contracts, smart, or necessarily on a blockchain. They are, in fact, singularly ill-named.1 Let's address these issues in reverse order, and we should find out exactly what a smart contract actually is along the way. First, an introduction to what transactions are and things that aren't transactions.

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How to use WeKan to manage your work

14 hours 38 min ago

Managing your work—figuring out which tasks to carry out and scheduling them—can be difficult. Not only are other things competing for your attention, there's only so much time in the day for you to do what you need or want to do.

There are any number of tools that you can use to help manage your workflow. You've probably used or test driven as many (or maybe even more) than I have. One that I find effective is WeKan.

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Win a year of access to O'Reilly Safari eBooks, videos, and more

14 hours 40 min ago

We're kicking off our third straight week of holiday giveaways with a one-year subscription to O'Reilly Safari, a US $399/year membership that gives you access to thousands of technology and business ebooks, videos, live online trainings, and real-time support from experts.

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Election night hackathon supports civic engagement

14 hours 40 min ago

On November 7, 2017, members of the Rochester Institute of Technology (RIT) community came together for the annual Election Night Hackathon held in the Simone Center for Student Innovation. This marked the seventh anniversary of a civic tradition for the FOSS @ MAGIC community, in which students and faculty analyze civic problems in the local community, state, or country and propose a project to address them.

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Mozilla's new voice recognition model, fixing the GPL, and more news

Saturday 9th of December 2017 08:00:00 AM

In this week's edition of our open source news roundup, we look at Mozilla's new speech recognition model, how big players in open source are moving to help the GPL, and more.

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Learn how to classify images with TensorFlow

Friday 8th of December 2017 08:05:00 AM

Recent advancements in deep learning algorithms and hardware performance have enabled researchers and companies to make giant strides in areas such as image recognition, speech recognition, recommendation engines, and machine translation. Six years ago, the first superhuman performance in visual pattern recognition was achieved.

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Top 5: Linux laptop giveaway, resources for learning JavaScript, and more

Friday 8th of December 2017 08:05:00 AM

This week we look at using TensorFlow to classify images, installing FOSS apps on your Android phone, the difference between forks and clones, and more.

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Overcoming challenges when building great global communities

Friday 8th of December 2017 08:02:00 AM

Today's open source communities include people from all around the world. What challenges can you expect when establishing an online community, and how can you help overcome them?

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How to use Fossdroid to get open source Android apps

Thursday 7th of December 2017 08:01:00 AM

Fossdroid is an alternate web interface for the F‑Droid repository of open source apps for the Android operating system. Unlike the official F‑Droid website, Fossdroid's design is based on the Google Play Store, which gives users who have never used an external app repository a familiar interface to search, browse, and install Android apps.

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Top 15 resources for learning JavaScript

Thursday 7th of December 2017 08:01:00 AM

HTML, cascading stylesheets (CSS), and JavaScript have experienced massive growth and evolution over the past two decades, which should come as no surprise given the ever-expanding role of the internet in our lives. JavaScript development has come a long way since the early 1990s and IBM's famous commercial depicting business' early recognition of the internet's significance. That commercial forever changed the role of the web developer.

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Preparing your organization for a future built on blockchain

Thursday 7th of December 2017 08:00:00 AM

In the first part of this review of Blockchain Revolution by Don Tapscott and Alex Tapscott, I presented some of the ways the authors suggest blockchain technology will impact organizations. In particular, I examined the open organization principles (transparency, inclusivity, adaptability, collaboration, community) and the reasons we practice them (building a network of people dedicated to a purpose and sharing the same ethical standards, for example).

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Running storage services on Kubernetes

Wednesday 6th of December 2017 08:06:00 AM

With the advent of containers, it's a good time to rethink storage completely. As applications now consist of volatile sets of loosely coupled microservices running in containers, ever-changing in scale, constantly being updated and re-deployed, and always evolving, the traditional mindset of serving storage and data services must change.

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Is blockchain a security topic?

Wednesday 6th of December 2017 08:05:00 AM

Blockchains are big news at the moment. There are conferences, startups, exhibitions, open source projects (in fact, pretty much all of the blockchain stuff going on out there is open source—look at Ethereum, Zcash, and Bitcoin as examples); all we need now are hipster-run blockchain-themed cafés.1 If you're looking for an initial overview, you could do worse than the Wikipedia entry—but that's not the aim of this post.

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Getting started with Turtl, an open source alternative to Evernote

Wednesday 6th of December 2017 08:04:00 AM

Just about everyone I know takes notes, and many people use an online note-taking application like Evernote, Simplenote, or Google Keep. Those are all good tools, but you have to wonder about the security and privacy of your information—especially in light of Evernote's privacy flip-flop of 2016. If you want more control over your notes and your data, you really need to turn to an open source tool.

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10 must-read DevOps resources

Wednesday 6th of December 2017 08:00:00 AM

Continuous learning is a key component of DevOps and digital transformation. If you are not learning from your day-to-day operations, your operational mindset will never change. If you don't put effort into pushing the limits of each team member's mind, your team will never reach its fullest potential. To quote Andrew Clay Shafer: "You are either building a learning organization, or you will be losing to someone who is."

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November top 10 articles and community update

Tuesday 5th of December 2017 05:33:00 PM

We published 77 articles last month and welcomed 14 new authors. We also set a new record with 717,103 unique visitors.

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7 rules for avoiding documentation pitfalls

Tuesday 5th of December 2017 08:04:00 AM

English serves as lingua franca in the open source community. To reduce translation costs, many teams have switched to English as the source language for their documentation. But surprisingly, writing in English for an international audience does not necessarily put native English speakers in a better position. On the contrary, they tend to forget that the document's language might not be the audience's first language. 

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Using sudo to delegate permissions in Linux

Tuesday 5th of December 2017 08:03:00 AM

I recently wrote a short Bash program to copy MP3 files from a USB thumb drive on one network host to another network host. The files are copied to a specific directory on the server that I run for a volunteer organization, from where the files can be downloaded and played.

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3 ways university classrooms can be more open

Tuesday 5th of December 2017 08:00:00 AM

Institutions of higher education stress the importance of student autonomy in academic exploration—yet the typical configuration of university courses does not take full advantage of students' potential to become actors in their education, rather than just receivers of it. To realize this potential and make university learning more inclusive of—and meaningful for—students, professors could learn a lesson from open organizations.

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CRI-O: All the runtime Kubernetes needs

Monday 4th of December 2017 08:06:00 AM

Alongside the huge rise in the use of container technology over the past few years, we've seen similar growth in Docker. Because Docker made it easier to create containers than previous solutions, it quickly became the most popular tool for running containers; however, that Docker solved only part of the problem was soon apparent. Although Docker was good for running containers locally on a single machine, it didn't work as well for running software at scale on a cluster.

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More in Tux Machines

Is PowerTop / TLP Still Useful To Save Power On Linux Laptops?

This system was running Ubuntu 17.10 and the configurations tested included: - Ubuntu 17.10 in a "stock" or "out of the box" experience when using its Linux 4.13 kernel, GNOME Shell 3.26.1 with Wayland, and Mesa 17.2.2 atop an EXT4 file-system. - Upgrading the Ubuntu 17.10 system to Linux 4.15 Git for showing the power consumption when using the very latest kernel cycle. - This Ubuntu 17.10 + Linux 4.15 system then with Intel PowerTop installed and changing all the tunables to their "good" values for maximum power-savings. - Installing TLP and using its default power-saving options. Read more

Linux 4.15 I/O Scheduler Tests: BFQ, CFQ, Kyber

With some BFQ performance fixes included as part of Linux 4.15 along with other I/O scheduler work and block improvements for this latest Linux kernel series, here are some fresh benchmarks of the different I/O scheduler options using the Linux 4.15 Git kernel. Read more

Ataribox Pre-Orders Begin on December 14

The company behind the new games machine revealed the pre-order date in a (now deleted) Facebook post. It later uploaded an image teasing the date ‘14.12.17’ (pictured above). Users will be able to “pre-order” the Ataribox through IndieGoGo, where the price for the console is expected to be start somewhere around the $299 mark. Read more

Android Leftovers