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Redmine is an open source web application for project management and issue tracker. In this tutorial, we will install Redmine 3.2 with Nginx as the web server, MySQL as the database server on a CentOS 7 (64 bit) operating system.

Operating systems don't quite date back to the beginning of computing, but they go back far enough. Mainframe customers wrote the first ones in the late 1950s, with operating systems that we'd more clearly recognize as such today—including OS/360 from IBM and Unix from Bell Labs—following over the next couple of decades. An operating system performs a wide variety of useful functions in a system, but it's helpful to think of those as falling into three general categories.

If you're reading this article, odds are good that you're not only familiar with the command line on your computer system, but that you're quite comfortable using it to the exclusion of the graphical interface. I understand—I've been using the command line since that was the only option in the computing world, and even contributed code to BSD Unix, back in the day. There's a lot about modern GUIs that make them superior, but in terms of power, speed, and flexibility, the command line still rocks, and even more so if you can type quickly. read more

Igel has launched a “UD Pocket” USB stick that boots up a VDI environment on any 64-bit x86 PC, laptop, or other device without overwriting its local OS. Since the early days of Linux, IT administrators and demo presenters have been using USB stick and Live CD-based devices to boot up Linux distributions like Knoppix […]

Endless Sky is a 2D space trading and combat game similar to Escape Velocity. The game sets you as a beginning pilot, just having made a down payment on your very first starship. You’re given a choice between a shuttle,... Continue Reading →

So you have a Raspberry Pi, or you’re thinking of getting one, and you want to know how to get started and how to become a master user of one. The Raspberry Pi is a single board computer, meaning that in many ways it's a regular PC, except that everything that makes up the computer is on a single board rather than a traditional PC, which has a motherboard and requires a number of additional daughterboards to make a whole unit. read more

At ELC Europe, embedded Linux guru Tim Bird examined the “Status of Embedded Linux” and discussed challenges that it faces in the brave new world of IoT. As Chair of the Architecture Group of The Linux Foundation’s CE Working Group, Tim Bird has long been the amiable public face of the Embedded Linux Conferences, which […]

T-Firefly is Kickstartering the first hacker SBC with Rockchip’s Cortex-A72/-A53 RK3399. The Firefly-RK3399 has up to 4GB DDR3, M.2, and USB 3.0 Type-C. T-Firefly, which offers Linux- and Android-ready open source boards like the Firefly-RK3288 and sandwich-style Firefly-RK3288 Reload, ........

This tutorial explains how to setup rsyslog as a centralized log management server on RedHat Linux based OS like CentOS. Centralized log management means to collect all sorts of logs from several physical or virtualized servers on one log server to monitor the health and security of the server services. We use rsyslog in this tutorial because it offers high-performance, great security and a modular design.

Organizations are becoming more open—but that certainly doesn't mean they don't need leaders. In fact, the demand for effective leadership hasn't abated in the age of the networked organization. If anything, it's increased. But yesterday's leadership strategies and tactics just won't cut it today. The open organization community at Opensource.com understands this—perhaps more acutely than anyone. So we've written a book about it. read more

The Python language, which is not new but continues to gain momentum and users as if it were, has changed remarkably little since it first was released. I don't mean to say that Python hasn't changed; it has grown, gaining functionality and speed, and it's now a hot language in a variety of domains, from data science to test automation to education.

In the early days of the open source movement, a lot of the attention was on operating systems, and later on large content management systems. These days, containers are mentioned regularly even in mainstream news outlets. The big tech stories are great, but they miss the other great activity in the niches of the open source space. I've rounded up seven interesting lesser-known projects from the past year. You can see more articles about projects like this in my Nooks and Crannies column. read more

Axiomtek’s “eBOX565-500-FL” computer runs Linux or Windows on dual-core Intel 6th Gen CPUs, and offers four USB 3.0 ports and wide-range power. The eBOX565-500-FL updates the two-year-old eBOX560-880-FL embedded PC, which provides dual-core Intel 4th Gen “Haswell” Core and Celeron CPUs. The very similar eBOX565-500-FL instead taps the 14nm Intel 6th Gen “Skylake” ULT processors, […]

Peer-to-peer marketplaces have been booming, and PwC predicts the market will go from $15 billion in 2013 to $355 billion in 2025. read more

Red Hat's Java Enterprise Edition middleware stack is now available on the company's Plaform-as-a-Service cloud.

Today, I’m very honored to join Mozilla’s Board. Firefox is how I first got in contact with Mozilla. The browser was my first interaction with free and open source software. I downloaded it in 2004, not with any principled stance

Fedora 25 is now available on Dply. Dply is a new experimental cloud provider which lets you run an instance for two hours at a time — for free, with no catch.

DFI announced an Intel Braswell based “BW051” Pico-ITX SBC with up to 8GB DDR3L, mini-PCIe, SATA 3.0, mSATA, and Linux support. DFI, which earlier this year tapped Intel’s “Braswell” generation of SoCs for its BW968 COM Express Compact Type 6 module, has now chosen Braswell for a Pico-ITX SBC. The 100 x 72mm BW051 ships […]

Suppose you are given a task to identify the processes that are using a particular file, and then kill them one by one - all this has to be done from the command line. What would you do? Well, if you are a command line newbie, I am sure you'd be clueless, asking around for help. But command line pros will likely have an idea that there exists a command line utility in Linux that lets you identify processes based on the files (or directories, or sockets) they are accessing. Not only that, the tool also allows you to kill these processes, so you don't have to use the kill or killall commands separately. The command line utility we're talking about is fuser.

The adoption of OpenStack in production environments has burgeoned, necessitating increased requirements for enhanced management and seamlessly integrated enterprise capabilities.