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Depending on who you ask, it's either the silliest or the most important question when it comes to coding style: tabs or spaces? When we asked you, our readers, the question last summer, spaces came out on top. That said, it's a nuanced question where things like programming language, editor, and project style all should play a role. read more

Sometimes kernel developers find themselves competing with each other to get their version of a particular feature into the kernel. But sometimes developers discover they've been working along very similar lines, and the only reason they hadn't been working together was that they just didn't know each other existed.

When getting started with Vim, users face a steep learning curve. It’s true the software is simple. It’s simple in the sense that its minimal interface focuses the user on their main task. But Vim is very powerful. To learn how to use Vim and master that power, we recommend the following free books. Each book is released under an open source license, just like Vim.

News briefs for September 12, 2018.

In this tutorial we will show you two different methods on how to install MariaDB on your Debian 9 machine. The first method will walk you through the steps necessary to install MariaDB from the Debian repositories while the second one will teach you how to install the latest version of MariaDB from the official MariaDB repositories.

Vamrs has begun shipping the “Rock960” — the first 96Boards SBC based on the hexa-core Rockchip RK3399. The community-backed SBC sells for $99 (2GB/16GB) or $139 (4GB/32GB). Shortly before Shenzhen-based Vamrs Limited launched a Rockchip RK3399 Sapphire SBC in Nov. 2017, the company announced a similarly open-spec Rock960 SBC that uses the same Rockchip RK3399 […]

Character encoding is a big topic and this post isn't going to cover it all. In fact, I'm only going to deal with one particular problem — what to do when you're converting a file with the iconv utility and you get a error message .......How to get around the "illegal input sequence" roadblock.

The Ansible Tower IT automation platform is being extended by Red Hat with new scalability improvements and enhanced customization options.

We all have our preferences when it comes to the application we want to use for opening and working with a certain file type. In Ubuntu, you can change your default applications both through the command line and the graphical user interface through the simple steps described in this tutorial.

Prometheus is an open source monitoring and alerting toolkit for containers and microservices. The project is a hit with lots of different organizations regardless of their size or industrial sector. The toolkit is highly customizable and designed to deliver rich metrics without creating a drag on system performance. Based on the organizations that have adopted it, Prometheus has become the mainstream, open source monitoring tool of choice for those that lean heavily on containers and microservices. read more

Apache Subversion or SVN is open source versioning and revision control software. In this article, we show you how to set up Apache Subversion on the latest CentOS 7 server. We install and configure the svn software with Apache as web server, secure it with Let's encrypt and activate "Basic Authentication" for users.

Due to more and more network access needed in most of the distributed applications today, the restrictions which need to be applied for network access and monitoring has only increased. In this lesson, we will study the ten most popular Network Tools for Ubuntu OS which can be used to monitor network usage with visualization as well.

Security teams depend on high-quality logs for most preventative security efforts. Preventing an incident from occurring requires observable insight into where the failure might come from, and logs are one important source for such insights. When an incident occurs, organizations must be able to respond and contain them as quickly as possible. Logs are not only essential to find the source of a problem, but they also help identify appropriate countermeasures. read more

I was able to visit the DEF CON Voting Village, where actual voting machines were being hacked. But more importantly, there were independent experts and state government voting officials that you could talk to about the voting process. States such as Colorado are making strides by moving to paper ballots, requiring risk-limiting audits, and...

SchoolTool is a free and open source suite of free administrative software for schools that can be used to create a simple turnkey student information system, including demographics, grade book, attendance, calendaring and reporting for primary and secondary schools.

I have used rpm-based package managers to install software on Red Hat and Fedora Linux since I started using Linux more than 20 years ago. I have used the rpm program itself, yum, and DNF, which is a close descendant of yum, to install and update packages on my Linux hosts. The yum and DNF tools are wrappers around the rpm utility that provide additional functionality, such as the ability to find and install package dependencies. read more

Nagios (also known as Nagios Core) is a free and open source application which can be used for monitoring Linux or Windows servers, network infrastructures and applications. When properly configured it will alert you when something on your server goes wrong and then notify you again once the problem has been resolved. In this tutorial, we will show you how to install and configure the latest Nagios Core version on a CentOS 7 VPS.

Canonical released a new kernel live patch for all of its LTS (Long Term Support) Ubuntu Linux releases to address various security vulnerabilities discovered by various security researchers lately.

In the first article in this series comparing Perl 5 to Perl 6, we looked into some of the issues you might encounter when migrating code into Perl 6. In the second article, we examined how garbage collection works in Perl 6, and in the third article, we looked at how containers replaced references in Perl 6. read more

Airdroid doesn’t come with a desktop client for Linux. In this article we show you how you can connect your Android phone to your Linux desktop.