This is the last article in a four-part series on the current state of 3D printing. In the first part, I gave an overall introduction to differences in 3D printing since I wrote my original articles...
Four years ago (last leap day to be specific), the first Raspberry Pi was released. And on February 29, 2016, the third version made its debut.
This is the first in a multipart series on Qubes OS, a security-focused operating system that is fundamentally different from any other Linux desktop I've ever used and one I personally switched to...

AWS EC2 VPC CLI

There's just something about the fresh start you get with a new job. Both my previous job and my new one began with the opportunity to build a new infrastructure from scratch. In both cases, as is common with startup infrastructure in its early stages, everything was to be built using Amazon Web Services (AWS), specifically using its Elastic Cloud Computing (EC2) infrastructure. more>>

The Linux Foundation's Automotive Grade Linux

You couldn't ask for a better segue than this, from Smith's book about the pitfalls of automotive security to our community's solution to them—that is, The Linux Foundation's Automotive Grade Linux (AGL) n more>>

GNOME 3.2 Released

While the GNOME desktop environment has its fair share of detractors, there are some who appreciate its simplified approach, so the recent release of the latest version is an eagerly anticipated event. more>>

KDE Plasma 5.6 Released

KDE Plasma is the desktop environment that powers Kubuntu, Chakra Linux and openSUSE (among others). This week sees the release of Plasma 5.6, which brings several tweaks and improvements. more>>

Words from Letter Cubes

I got a great letter from a reader with a puzzle to solve, so let's dig in, shall we? Here's what he wrote:

Love your column in Linux Journal. I've read it for years and learned a lot about shell scripting, but not quite enough to solve a puzzle on my own. more>>

Makeblock's mBot

The new kid-friendly mBot from Makeblock is marketed as a Science, Technology and Mathematics (STEM) educational learning tool. more>>

Secure File Transfer

File transfer between Linux systems (and perhaps all POSIX systems in general) is in some ways a neglected subject. The arcane protocols in common use are far from secure, and the SSH replacements offer too much power and complexity. more>>

IBM LinuxONE: Who Needs the Cloud?

IBM has long been a stalwart supporter of, and participant in the Open Source community. So IBM’s announcement of the LinuxONE platform last year should have come as a surprise to no one. The ultimate goal for LinuxONE, however, may be a bit more surprising. more>>

Sponsored by: IBM

What Does "Fast" Mean?

Good news! One of my clients is launching a new marketing campaign, which we expect will make the business even more successful than before.

Bad news! This means our Web application, which has existed for some time on a fairly simple infrastructure, and which has handled a steadily growing number of users, now (we hope) will need to deal with a massive spike in users. more>>

Symbolic Math on Android

For this article, I'm returning to portable science software on Android. In a previous article, I looked at a program called xcas/giac. This program is an open-source engine that is used to handle symbolic manipulation of mathematical equations. Because it is open source, it has been ported to several different platforms. more>>

Upcoming Webinar: When the Golden Master Tarnishes

Servers are generated – often with a ‘golden master’ and then left never to be checked or examined from a security perspective. This session discusses the ways the server settings can degrade, the undesirable effects this may have on your organization and how you can avoid both. more>>

Your Youth, in a Browser!

I've mentioned many times before the questionable nature of downloading video game ROMs in order to emulate them on your computer. more>>

Bash Shell Script: Building Your March Madness Bracket

I must admit that I don't really follow basketball. But, I do like to engage with folks at work, and every spring I've always felt a little left out when my work colleagues fill out their NCAA March Madness basketball brackets. If your office is like mine, it seems everyone gets very excited to build their brackets and follow the basketball games and play in an office pool. more>>

Tighter Security in OwnCloud v9

OwnCloud is a free Web-based app that provides Dropbox-style file hosting. With the release of version 9 on the horizon, it's a good time to take a look at the improved security features. more>>

Transferring Conserver Logs to Elasticsearch

If your organization manages Linux, AIX, HP-UX or Solaris servers in-house, chances are your system administrators at least occasionally need low-level access to those devices. Typically, administrators use some kind of serial console—for example, traditional serial port, Serial-over-LAN or Intelligent Platform Management Interface (IPMI). more>>

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