News & Tutorials

Devuan, DevOne. Here comes a fork of Debian

Devuan, DevOne. Here comes a fork of Debian

Ha, from ongoing discussions surrounding Systemd/Init in Debian, anybody could have predicted this was going to happen sooner or later. Well, it has happened. A fork of Debian has been announced by the “Veteran Unix Admin collective.” The name of the Debian fork is Devuan, an Italian name that’s pronounced like DevOne. The following is from the groups webpage: Devuan […]

Don’t like the Mozilla/Yahoo deal? Make StartPage your search engine

Don’t like the Mozilla/Yahoo deal? Make StartPage your search engine

Last week Mozilla announced that, starting from December (2014), the default search engine provider in its Firefox Web browser application will be Yahoo, a deal that Marissa Mayer, Yahoo’s CEO, trumpeted as “the most significant partnership for Yahoo in five years.” Yep, the deal is a 5-year strategic partnership that will make Yahoo Search the default search engine in desktop […]

Failed attempts to dual-boot PC-BSD 10.1 with Windows 8

Failed attempts to dual-boot PC-BSD 10.1 with Windows 8

After reviewing PC-BSD 10.1 and installing it on an encrypted hard drive, the next logical thing to do is attempt a dual-boot setup between it and Windows 8 and publish an article showing how to go about it. Unfortunately, multiple attempts to setup such a system failed, so instead of writing about how to set up a dual-boot system between […]

How to configure full disk encryption in PC-BSD 10.1

How to configure full disk encryption in PC-BSD 10.1

Full disk encryption is supported in the graphical installer of PC-BSD 10.1, which was released on November 16 and which I just reviewed just three days ago (see PC-BSD 10.1 review). In this article, you’ll read how to install a default PC-BSD 10.1 system on a single hard drive with full disk encryption configured. The installation image I used is […]

How to set the PATH variable in Bash

How to set the PATH variable in Bash

So, how do you set the PATH variable in Bash? That’s a very simple task, which should take less than a minute to complete. However, for the benefit of those not familiar with the Bash shell or the PATH variable, let’s start with a very brief introduction. Note: The operating assumption in this article is that you have access to […]

Sponsored Tiles now live in Firefox

Sponsored Tiles now live in Firefox

That Sponsored Tiles program from Mozilla, which I first wrote about in Mozilla to sell ads in Firefox browser via the Directory Tiles program, has gone live. To refresh your memory, back in February (2014), Mozilla announced that some of the tiles in a new tab page in Firefox will be sponsored. In other words, ads from Mozilla partners. Note […]

Let’s Encrypt to offer free, automated and open SSL/TLS domain certificates

Let’s Encrypt to offer free, automated and open SSL/TLS domain certificates

Come Summer 2015, webmasters not already using SSL/TLS certificates to encrypt their website’s traffic will be able to do so for free using a single package that automates the whole process of proving to a certificate authority (CA) that they own their domain, getting and installing the certificate and even renewing and revoking it as needed. What is currently a […]

How to change the default route in Linux

How to change the default route in Linux

This is just a short article that shows how to change the default network route in Linux. Before I show how to do it, hoping that it helps somebody, let me tell you how I found myself in a situation where I was forced to change it. If all you care about is how to change the route and not […]

A beginner’s guide to disks and disk partitions in Linux

A beginner’s guide to disks and disk partitions in Linux

A beginner’s guide to disks and disk partitions in Linux is an updated version of Guide to disks and disk partitions in Linux. It is intended to be an absolute beginner’s guide to understanding how Linux handles disks and partitions. If you are migrating from Windows to Linux and are attempting to install any Linux distribution alongside Windows 7/8 on […]

Preview of Cinnamon 2.4. Features desktop slideshow

Preview of Cinnamon 2.4. Features desktop slideshow

A preview release of what will become Cinnamon 2.4 is now available for testing. The stable version will ship with Linux Mint 17.1, which will be released at the end of the month, but if you’re willing to take it for a spin and report any bugs you find, you can upgrade to it now. Cinnamon 2.4 will come with […]

Solutions for low screen resolution in Ubuntu 14.04/14.10 and VirtualBox

Solutions for low screen resolution in Ubuntu 14.04/14.10 and VirtualBox

This article was originally posted on the forum. On my test installations of Ubuntu 14.04 in VirtualBox, I had to figure out how to deal with a situation where the highest screen resolution I could get was 640 x 480. And it was not just with Ubuntu 14.04, but also with Kubuntu 14.04. UPDATE: This also applies to Ubuntu 14.10. […]

Dual-boot Ubuntu 14.10 and Window 8 on a Toshiba Satellite C55-A

Dual-boot Ubuntu 14.10 and Window 8 on a Toshiba Satellite C55-A

The Toshiba Satellite C55-A is a Toshiba laptop with Intel Core i3 processor inside, a 750 GB hard disk drive (HDD) and Windows 8 factory installed. That means UEFI firmware and Windows 8 installed using a GPT partitioning scheme. Also, Restricted Boot (or Secure Boot) is enabled. This article offers guidance on how to install Ubuntu 14.10 alongside Windows 8 […]

Install Unity Tweak Tool on Ubuntu 14.10

Install Unity Tweak Tool on Ubuntu 14.10

For both new and experienced users, most especially for new users, System Settings, Ubuntu‘s graphical management application, offers a simple, point-and-click interface for managing most aspects of the desktop. But there are other aspects of the desktop for which Systems Settings has no modules for. That’s where Unity Tweak Tool comes in. It provides the same simple, point-and-click interface for […]

Distributed R brings scalable, high-performance Big Data analytics to R

Distributed R brings scalable, high-performance Big Data analytics to R

The R statistical and programming language is a single-threaded language, a factor that counts against it when it comes to analyzing massive datasets. HP Labs has launched a platform called Distributed R that makes it possible to analyze such massive datasets using computing resources available to R instances running on multiple computing nodes. It is an open source project hosted […]

Rocker:  Run R in Docker containers

Rocker: Run R in Docker containers

Docker and R? What’s not to like about that combination! Rocker is a new project that offers an alternate system for running the R statistical and programming language in Docker containers. See how the name was derived? Rocker – R and Docker. Nice! Rocker is a project of rOpenSci, which aims to transform science through open data. Rocker is hosted […]

Replace UFW with FirewallD on Ubuntu 14.10

Replace UFW with FirewallD on Ubuntu 14.10

UFW, the Uncomplicated FireWall, is the default firewall application on Ubuntu 14.10. It’s a nice application with a simple command line syntax and an even simpler to use graphical interface, but it lacks support for IP or network zones, a key feature of FirewallD, another firewall application from the Fedora project. This tutorial shows how to remove (uninstall) UFW and […]

Digital Science Studio and the HTTP code: 500, type: java.io.IOException error

Digital Science Studio and the HTTP code: 500, type: java.io.IOException error

Digital Science Studio (DSS) “is a software platform that aggregates all the steps and big data tools necessary to get from raw data to production ready applications.” In other words, it is an application with a fancy graphical interface that makes it easy to perform analytics and visualizations on data – big and small. Think R language, but with a […]

Android 5.0 Lollipop, Nexus 9 tablet and Nexus 6 phablet

Android 5.0 Lollipop, Nexus 9 tablet and Nexus 6 phablet

Android 5.0, code-named Lollipop, is the latest edition of the most popular mobile operating system on planet Earth. Along with it, Google’s also releasing a 9-inch version of the Nexus tablet and phablet version of the Nexus smartphone – the Nexus 6. Two features of Android 5.0 that sets it apart from current versions are better security and enterprise features. […]

How to replace LibreOffice with Apache OpenOffice on Fedora 20

How to replace LibreOffice with Apache OpenOffice on Fedora 20

For almost a year now, I’ve seldom had to use any component of LibreOffice, the default Office suite on virtually all desktop Linux distributions. The few times that I’ve had to use it, not being able to copy and paste with the mouse always rubbed me the wrong way. That means selecting content with the left-mouse button and pasting with […]

Anonabox bundles OpenWrt with Tor for anonymous Web browsing

Anonabox bundles OpenWrt with Tor for anonymous Web browsing

Anonabox is a very small, like 2.4 x 1.6 x 0.5 inches small, hardware that comes bundled with OpenWrt and Tor to offer anonymous Web browsing and Internet surfing to all traffic that passes through it. OpenWrt is a free software operating system primarily used in home routers, while Tor (The Onion Router) is “free software and an open network […]