Tutorials/Tips

The search for a usable Markdown editor for my Linux desktop

The search for a usable Markdown editor for my Linux desktop

I’ve spent the last several days looking for a note-taking/journal application that’s easy-to-use and also feature-rich. I’ve tried Lifeograph, RedNotebook and Xournal, but they didn’t fit the bill. I actually lost data with Lifeograph, which was painful. However, life goes on. So I went looking for something more to my liking. Something that’s Markdown-enabled. That has meant installing and uninstalling […]

October 4, 2014 · 6 comments · Tutorials/Tips
Using GNOME Boxes to create and access local virtual systems on GNOME 3.14

Using GNOME Boxes to create and access local virtual systems on GNOME 3.14

GNOME Boxes is a native GNOME 3 application for accessing remote machines and local virtual systems, primarily using the libvirt technology. Consider it an alternative to VirtualBox and VMPlayer. It’s being a usable application for quite some time, but with the release of GNOME 3.14, I decided to give it a test drive to see how far it has come. […]

September 27, 2014 · 0 comments · Tutorials/Tips
How to install TwitteR, a Twitter client for R

How to install TwitteR, a Twitter client for R

Installing packages in R is pretty easy, if you know the name of the package you wish to install. Just pass the name of the package to the install.packages() function. Once that’s done, load the package by passing its name to the library() function. So it’s a fairly easy and straight-forward process, right? But it wasn’t so when I attempted […]

September 26, 2014 · 0 comments · News & Announcements, Tutorials/Tips
Bash susceptible to environment variables code injection attack

Bash susceptible to environment variables code injection attack

A security adversary posted at Red Hat’s security blog and referenced at US-CERT has warned users of the Bash shell of a “specially-crafted environment variables code injection attack.” That means UNIX-based operating systems that use the Bash shell are affected. That includes all Linux distributions and Apple’s Mac OS X. According to the blog post cited above: … the vulnerability […]

September 25, 2014 · 6 comments · Tutorials/Tips
DevAssistant: A developer’s best friend

DevAssistant: A developer’s best friend

One application I came across while testing an installation of the main edition Fedora 21 alpha is DevAssistant. (See Fedora 21 Workstation: GNOME 3. KDE and Anaconda screenshots.) DevAssistant automates the process of setting up development environments for a few of the most popular programming languages and development frameworks. Languages supported are shown in the screenshot below. Just after a […]

September 24, 2014 · 0 comments · Fedora, Tutorials/Tips
How to set up a 3-node CoreOS cluster, just for fun

How to set up a 3-node CoreOS cluster, just for fun

“CoreOS is a new Linux distribution that has been rearchitected to provide features needed to run modern infrastructure stacks.” That’s geek-speak for a Linux distribution that makes it (not-so-) super easy to run fun things like Linux containers and containerized applications on commodity hardware. That’s one of the trending things in the business, and it’s the kind of stuff I […]

September 19, 2014 · 0 comments · Tutorials/Tips