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A Linux Administrator should be able to read and understand the various types of messages that are generated by all Linux systems in their log files in order to troubleshoot an issue. This tutorial shows how to view system logs on Ubuntu Linux via desktop applications and on the shell.

At the base of the testing pyramid are unit tests. Unit tests test one unit of code at a time—usually one function or method. Often, a single unit test is designed to test one particular flow through a function, or a specific branch choice. This enables easy mapping of a unit test that fails and the bug that made it fail. Ideally, unit tests use few or no external resources, isolating them and making them faster. read more

As you build a DevSecOps culture, use these priorities to close the gap between developers and security pros

Microservices are gaining in popularity and providing new ways for tech companies to improve their services for end users. But what impact does the shift to microservices have on team culture and morale? What issues should CTOs, developers, and project managers consider when the best technological choice is a move to microservices? Below you’ll find key advice and insight from CTOs and project leads as they reflect on their experiences with team culture and microservices. read more

News briefs for August 8, 2018.

These work for anyone else who wants a top-notch laptop. Some people still think you need a Windows PC or an Apple device for school. That's so not true. But you don't have to take my word for it. By FutureSource's count, 59.6 percent of K-12 schools bought Chromebooks in 2017. You should too.

Continuing on from the previous tutorial, we have a working DOS installation running with DOSBox that we can install Windows 3.11 on for running old 16-bit Windows software. Since a DOS installation is up and running correctly (unless, of course, it’s broken somehow), let’s begin by installing Windows 3.11 on to the disk image.

In this tutorial we will show you three different ways to install Ruby on CentOS. Each has their own benefits, you can choose one of the installation method that will work best for you.

Effective management of your to-do list can do wonders for your productivity. Some prefer just keeping a to-do list in a text file, or even just using a notepad and pen. For users that want more out of their to-do list, they often turn to an application. In this article we highlight 4 graphical applications […]

InvoicePlane is a free, open source and self-hosted application for managing your invoices, clients and payments. In this tutorial, we will explain how to install InvoicePlane on Ubuntu 18.04 LTS (Bionic Beaver).

The Document Foundation announced LibreOffice 6.1 today, a release which includes a new icon theme called Colibre, native Gtk3 dialogs (if the Gtk3 backend is used), faster image handling, improved EPUB export, and more.

In an earlier article, the crew from French non-profit Framasoft discussed their mission to help people slip the bonds of internet giants and take control of their own data. While promoting free and open source software is at the core of Framasoft's mission, the group is also dedicated to educating people about both free software and free culture. What's refreshing is that the group's approach isn't steeped in ideology. read more

Strongswan is an open source multiplatform IPSec implementation. It's an IPSec-based VPN solution that focuses on strong authentication mechanisms. In this tutorial, I will show you how to install an IPSec VPN server using Strongswan. We will create an IKEv2 VPN server with the 'EAP-MSCHAPv2' authentication and be using Letsencrypt certificates on CentOS 7 server.

Purism is keeping us up-to-date with the development of their upcoming Librem 5 privacy and security-focused Linux-powered smartphone, which should hit the streets in January 2019.

AutomaThemely is a Python application that automatically changes Gnome themes according to light and dark hours, useful if you want to use a dark Gtk theme at night and a light Gtk theme during the day.

Gaming has traditionally been one of Linux's weak points. That has changed somewhat in recent years thanks to Steam, GOG, and other efforts to bring commercial games to multiple operating systems, but those games are often not open source. Sure, the games can be played on an open source operating system, but that is not good enough for an open source purist. read more

There's an ongoing series of skirmishes between corporations who want to sell products that users don't fully control and the kernel developers who want users to be the highest authority. Sometimes these skirmishes manifest in the form of security patches intended to lock down the kernel. Do they lock down the kernel against outside attackers? Or do they lock down the kernel against change from anyone at all, including the user who owns the device?

The Document Foundation announced today the official release and general availability for download of the LibreOffice 6.1 open-source office suite, the second major update of the LibreOffice 6 series introduced in early 2018, for all supported platforms.

Despite year-round schools and education of all types and stripes—from open courses and textbooks to online learning—this is a good time of year to consider new, innovative learning solutions. From software to hardware, we've got you covered with a list of books recommended by our writer community at Opensource.com.  read more

The Debian Project's developer conference for 2019, DebConf19, will be hosted in the city of Curitiba, Brazil, and it will take place between July 21 and July 28, 2019.