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How to use GNOME Boxes' remote access capabilities

lun, 05/20/2019 - 09:01

In Part 1 of this series, I introduced GNOME Boxes, an open source virtualization tool maintained by the GNOME Project as part of its GNOME Desktop Environment. The GNOME Project describes Boxes as: "A simple GNOME application to view, access, and manage remote and virtual systems."


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Getting started with GNOME Boxes virtualization

lun, 05/20/2019 - 09:00

I've been a fan of virtualization technology for many years, using many different products along the way. Virtualization has advantages for both the data center and the desktop: data centers use it to increase server hardware utilization, while desktop users use it for modeling, testing, and development work. One operating system running on top of a different one on the same hardware, all thanks to the concept of a virtual machine (VM).


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Announcing Enarx for running sensitive workloads

ven, 05/17/2019 - 09:01

Running software is something that most of us do without thinking about it.  We run in "on premises"—our own machines—or we run it in the cloud - on somebody else's machines.  We don't always think about what those differences mean, or about what assumptions we're making about the securtiy of the data that's being processed, or even of the software that's doing that processing.  Specifically, when you run software (a "workload") on a system (a "host") on the cloud or on your own premises, there are lots and lots of layers. You often don't see those layers, but they're there.


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Using Testinfra with Ansible to verify server state

ven, 05/17/2019 - 09:00

By design, Ansible expresses the desired state of a machine to ensure that the content of an Ansible playbook or role is deployed to the targeted machines. But what if you need to make sure all the infrastructure changes are in Ansible? Or verify the state of a server at any time?


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Contribute to a new playbook for open-minded educators

jeu, 05/16/2019 - 09:06

Organizations everywhere are becoming more open—and more innovative, agile, and engaged as a result. But can we say the same of our educational organizations?


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System76's secret sauce for success

jeu, 05/16/2019 - 09:02

In The Open Organization, Jim Whitehurst says, "show passion for the purpose of your organization and constantly drive interest in it. People are drawn to and generally, want to follow passionate people." Carl Richell, the founder and CEO of Linux hardware maker System76, pours that secret sauce to propel his company in the world of open hardware, Linux, and open source.


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Querying 10 years of GitHub data with GHTorrent and Libraries.io

jeu, 05/16/2019 - 09:01

I’m always on the lookout for new datasets that we can use to show off the power of my team's work. CHAOSSEARCH turns your Amazon S3 object storage data into a fully searchable Elasticsearch-like cluster. With the Elasticsearch API or tools like Kibana, you can then query whatever data you find.


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Create flexible web content with a headless management system

jeu, 05/16/2019 - 09:00

In recent years, we’ve witnessed an explosion in the number of technological devices that deliver web-based content to users. Smartphones, tablets, smartwatches, and more—all with progressively advancing technical capabilities and support for an ever-widening list of operating systems and web browsers—swarm anew onto the market each year.

What does this trend have to do with web development and headless versus traditional Content Management Systems (CMS)? Quite a lot.


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100 ways to learn Python and R for data science

mer, 05/15/2019 - 09:02

Learners of all types are drowning in the deluge of information and learning resources available online. This barrage of information often leaves people confused about how to find the right course, tutorial, book, or other material that can help simplify their learning journey and achieve their personal objectives and needs.


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10 tips for managing an open source community

mer, 05/15/2019 - 09:01

Twenty years ago, I started using free and open source software. Soon after, I started asking questions on dedicated forums, learned how to use IRC to chat with developers, and contributed my first bug reports. As my contributions increased, I made a career move from industry to open source software.

Over the past 20 years, I've learned a lot about using and contributing to free and open source software and working with communities and developers. Here are 10 of the key areas you'll find in an open source project and some tips for managing them better.


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How to manage access control lists with Ansible

mer, 05/15/2019 - 09:00

Imagine you're a new DevOps engineer in a growing agile environment, and recently your company has experienced phenomenal growth. To support expansion, the company increased hiring by 25% over the last quarter and added 5,000 more servers and network devices to its infrastructure. The company now has over 13,000 users, and you need a tool to scale the existing infrastructure and manage your large number of users and their thousands of files and directories.


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How to convert Excel files to HTML or JSON

mar, 05/14/2019 - 09:03

Many businesses use Excel files to manage price lists, product inventories, advertising settings, financial data, and more. However, due to the ubiquity of the web, there is a growing need for organizations to display this type of data on websites or process it in third-party tools. Converting Excel data into web-based formats like JSON and HTML makes that possible.


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How to analyze log data with Python and Apache Spark

mar, 05/14/2019 - 09:02

In part one of this series, we began by using Python and Apache Spark to process and wrangle our example web logs into a format fit for analysis, a vital technique considering the massive amount of log data generated by most organizations today.


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How to wrangle log data with Python and Apache Spark

mar, 05/14/2019 - 09:01

One of the most popular and effective enterprise use-cases which leverage analytics today is log analytics. Nearly every organization today has multiple systems and infrastructure running day in and day out. To effectively keep their business running, these organizations need to know if their infrastructure is performing to its maximum potential. Finding out involves analyzing system and application logs and maybe even applying predictive analytics on log data.


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Let's be real: Diversity and inclusion is a business issue

mar, 05/14/2019 - 09:00

Having spent most of my career in the technology industry, I've observed one fairly common approach to addressing issues: Identify a problem, isolate that problem's causes, develop a solution, implement that solution, then gather data to determine whether the solution has in fact solved the problem. If it hasn't, then rinse and repeat the process with updated data. If it has, then check that problem off the list and consider the problem "solved."


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Don't test in production? Test in production!

lun, 05/13/2019 - 09:00

If you last updated your IT security standards five or more years ago, chances are they don't line up well with the realities of today's DevOps and site reliability engineering (SRE) practices. One particularly sticky topic is testing in production—and, thus, testing with production data—because DevOps and SRE blur the line between what is production and what is not; what is a test and what is not.

To clear up some of the confusion, we'll dig into these questions:


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Learn Python by teaching in your community

lun, 05/13/2019 - 09:00

Since ancient times, we've known that one of the most effective ways to learn something is by teaching it to someone else. I've put that strategy into practice by teaching Python in my community. If you want to learn Python for free and have fun at the same time, I recommend you consider doing the same.


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Simulating the sound of stars, Acquia buying Mautic, open source at the VA, and more news

sam, 05/11/2019 - 09:33

In this edition of our open source news roundup, we take a look at Acquia buying Mautic, using open source at the Veteran's Administration, simulating the sounds of stars, and more!


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Keeping an open source project alive when people leave

ven, 05/10/2019 - 09:01

Suppose you wake up one day and decide to finally use that recipe video you keep watching all over social media. You get the ingredients, organize the necessary utensils, and start to follow the recipe steps. You cut this, cut that, then start heating the oven at the same time you put butter and onions in a pan. Then, your phone reminds you: you have a dinner appointment with your boss, and you're already late! You turn off everything and leave immediately, stopping the cooking process somewhere near the end.


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5 open source hardware products for the great outdoors

ven, 05/10/2019 - 09:00

When people think about open source hardware, they often think about the general category of electronics that can be soldered and needs batteries. While there are many fantastic open source pieces of electronics, the overall category of open source hardware is much broader. This month we take a look at open source hardware that you can take out into the world, no power outlet or batteries required.


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