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How to automate your system administration tasks with Ansible

Open Source - Hace 7 horas 47 mins

Do you want to sharpen your system administration or Linux skills? Perhaps you have some stuff running on your local LAN and you want to make your life easier—where do you begin? In this article, I'll explain how to set up tooling to simplify administering multiple machines.

When it comes to remote administration tools, SaltStack, Puppet, Chef, and Ansible are a few popular options. Throughout this article, I'll focus on Ansible and explain how it can be helpful whether you have 5 virtual machines or a 1,000.


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Categorías: Open Source

How to live demo a web app with lousy internet

Open Source - Hace 7 horas 48 mins

Live demos are the bane of professional speakers everywhere. Even the most well-prepared live demo can go wrong for unforeseeable reasons. This is a bad thing to happen while you're on stage in front of 300 people. Live demos of remote web apps are so fraught with peril that most people find other ways of presenting them. Screenshots can never fail, and local sandboxes won't fail on overloaded conference internet connections. But what if we can't set up a local sandbox in time for our talk? What if our database is huge and complex?


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Categorías: Open Source

15 ways to empower students with open source tools

Open Source - Hace 7 horas 49 mins

The academic year is firing back up soon, so you'll be seeing more education articles on Opensource.com in the coming weeks.


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Categorías: Open Source

Lucasfilm goes open source, DIY lab equipment, and more news

Open Source - Sáb, 07/22/2017 - 09:00

In this week's edition of our open source news roundup, we take a look at Lucasfilm's MaterialX Library, the CatBoost machine learning library, DIY laboratory equipment, and more.

Open source news roundup for July 9-21, 2017
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Categorías: Open Source

Top 5: dwm Linux window manager, why be a sysadmin, and more

Open Source - Vie, 07/21/2017 - 20:00

In this week's Top 5, we highlight sysadmin, graph databases, and more.

Top 5 articles of the week

5. Neo4j and graph databases: Getting started


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Categorías: Open Source

Build a clock for your entertainment center with a Raspberry Pi

Open Source - Vie, 07/21/2017 - 09:01

I'm a cord cutter—one of the many people who have canceled their expensive cable channel subscription and switched to cheaper, legal, alternative methods to get their TV entertainment. Just a few hours after I returned my cable set-top box, it became clear I had a gap to fill. The clock that was part of my cable box, sitting underneath my TV, was gone, and I never realized how much I used it until now!


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Categorías: Open Source

How to use Libraries.io data from millions of open source projects

Open Source - Vie, 07/21/2017 - 09:00

What if we applied the techniques Google applied to index the internet back in 1998 to the world of open source software? That's exactly the thought Andrew Nesbitt had in 2014 which lead to the creation of Libraries.io, an open source project for indexing other open source projects. This month Libraries.io released metadata on over 25 million open source projects.


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Categorías: Open Source

A hands-on look at SparkFun's new Spectacle kit

Open Source - Jue, 07/20/2017 - 14:30

As an artist and technology teacher, I jumped at the opportunity to test out SparkFun's new Spectacle kit.

Spectacle is based entirely around the idea that artists shouldn't need to spend years studying electronics in order to use them in their art. To aid me in my review, I enlisted the help of Sophia, one of the coolest pre-teens I know. Sophia is a young artist who makes her own costumes and works in a wide variety of other physical mediums.


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Categorías: Open Source

How open is your organization?

Open Source - Jue, 07/20/2017 - 14:10

The open organization community at Opensource.com is pleased to announce the immediate availability of its newest resource: The Open Organization Maturity Model.


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Categorías: Open Source

The truth about sysadmins

Open Source - Jue, 07/20/2017 - 09:03

You've probably heard many stereotypes about system administrators and the job itself. Like most stereotypes, they have varying levels of accuracy, so it's worth digging a little deeper if you're considering a career change.

Here's the truth about are some of the things you may have heard about network and system administration.


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Categorías: Open Source

Does your software development team use scrum?

Open Source - Jue, 07/20/2017 - 09:00

To scale successfully, every software development team needs to have a plan in place to plan and manage their work, and open source is no different.

For many software teams, a scrum methodology is the framework they use for project management. Scrum is all about making development agile while keeping work sprints on a regular, fixed cadence so that features and bug fixes get built, tested, and deployed on a regular basis.


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Categorías: Open Source

Neo4j in your own software: Very basic Perl hacking

Open Source - Mié, 07/19/2017 - 09:02

In the prior articles in this series, we've looked at the fundamentals of graph databases and installed and started using Neo4j, a popular open source graph database. In this final article, we'll write some Perl code to do the same things as we did in the second article and point you to some other libraries for working with Neo4j in your own programming.


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Categorías: Open Source

If you were on a desert island, which license would you take with you?

Open Source - Mié, 07/19/2017 - 09:01

First, we need to ask ourselves why we should bother choosing a license?

Are you:

  • presenting your software to the public?
  • representing your software in a way that leads others to believe they can copy it or build on it?

Then, yes, you should choose a license. Be fair to your visitors and back up the appearance of permission by expressly giving permission.


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Categorías: Open Source

Lessons in OpenStack: New tutorials and how-tos

Open Source - Mar, 07/18/2017 - 09:03

If you're working in open source cloud infrastructure, there's a good chance that you're working with OpenStack.

And OpenStack is no small thing to learn about. Made up of dozens of related projects working together to power your cloud infrastructure needs, even those immersed in OpenStack every day need good resources for keeping up.


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Categorías: Open Source

How do we fix the state of technical documentation?

Open Source - Mar, 07/18/2017 - 09:02

Over 90% of respondents to a recent GitHub survey said that one of the top problems with open source projects is incomplete or confusing documentation.

What can we do to fix it?

GitHub users identified poor documentation as one of the top problems with #opensource projects. How can we fix it?https://t.co/t2Jmt9QDJc pic.twitter.com/d1GEPYT22P


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Categorías: Open Source

Top 4 reasons I use dwm for my Linux window manager

Open Source - Mar, 07/18/2017 - 09:01

I like minimalistic views. If I could run everything in a terminal I would. It's free from shiny stuff that hogs my resources and distracts my feeble mind. I also grow tired of resizing and moving windows, never getting them to align perfectly.


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Categorías: Open Source

Hard to communicate with other teams? Check out these tips

Open Source - Mar, 07/18/2017 - 09:00

When teams in the same organization—or even across organizational boundaries—start to collaborate, they will most likely realize that not all of their goals align. The IT team, for instance, might not have the same criteria for success as the sales team. Different teams have different benchmarks, even if the teams are part of a larger organization (as in the case of relationships between a developer team and an operations team).

But the teams all strive towards the same goal, which is to make the organization successful. And they rely on each other to accomplish that goal.


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Categorías: Open Source

Why you should become a sysadmin

Open Source - Lun, 07/17/2017 - 09:02

We are at war with entropy, and Uncle Server wants YOU to be a system administrator.


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Categorías: Open Source

Neo4j and graph databases: Getting started

Open Source - Lun, 07/17/2017 - 09:01

In the first article in this series, we explored some core concepts of graph databases. This time, we'll install the Neo4j application and begin using the web client to insert and query data in the graph.


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Categorías: Open Source

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