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Building an Ultra-Low-Power File Server with the Trim-Slice

By Daniel Bartholomew 

For the past several years, I've used a custom-built file server at my house. I've upgraded it many times, but it began life, as near as I can recall, in April 2000. When I say "upgraded", I mean the internals have been swapped completely on at least two occasions among other things. more>>

Tunnel

SSH Tunneling - Poor Techie's VPN

By Jayson Broughton 

"If we see light at the end of the tunnel, it is the light of the oncoming train" ~ Robert Lowell. Oh yes, another good quote. This post is on SSH tunneling, or as I like to call it 'Poor Man's VPN'. Contrary to the sysadmin's popular belief, SSH tunneling actually can be very valuable use for both techies and home users. more>>

Roaming Media

By Michael Nugent 

Portable music doesn't need to be restricted to headphones. Here's a step-by-step how-to on setting up a music system that follows you around the house like a puppy. more>>

Learning to Program the Arduino

By Amit Saha 

This article should acquaint you with basic Arduino programming and show you how to write programs that interact with objects in the real world. (A mandatory disclaimer: the last time I really studied electronics was way back in high school, so this article focuses more on the programming aspects, rather than the electronic side of things.) more>>

Work the Shell - What Day Is That Date in the Past?

By Dave Taylor 

In a previous article, we started a script that worked backward from a day and month date and figured out the most recent year—including possibly the current year—that would match that date occurring on that particular day. more>>

Advanced Firewall Configurations with ipset

By Henry Van Styn 

iptables is the user-space tool for configuring firewall rules in the Linux kernel. It is actually a part of the larger netfilter framework. Perhaps because iptables is the most visible part of the netfilter framework, the framework is commonly referred to collectively as iptables. iptables has been the Linux firewall solution since the 2.4 kernel. more>>

Network Programming with ENet

By Mike Diehl 

Cross-platform network programming made easy. more>>

Mustache.js

By Reuven Lerner 

In previous articles, I've looked at a number of uses for JavaScript, on both the server and the client. I hope to continue my exploration of such systems, particularly on the client side, in the coming months. more>>

Python in the Cloud

By Adrian Klaver 

A basic introduction to using the Python boto library to interact with AWS services and resources. more>>

Swap Your Laptop for an iPad + Linode

By Mark O'Connor 

Ditch your laptop and code in the cloud—it's easier than you'd think.

On September 19, 2011, I said goodbye to my trusty MacBook Pro and started developing exclusively on an iPad + Linode 512. This is the surprising story of three months spent working in the cloud. more>>

Remote Viewing-Not Just a Psychic Power

By Joey Bernard 

Most people today are used to having a nice, intuitive graphical environment when they sit down to use a computer. Gone are the days of using a DOS machine or being lucky enough to have a dial-up account at 300 baud on a UNIX mainframe. more>>

Creating a vDSO: the Colonel's Other Chicken

By Matt Davis 

A vDSO (virtual dynamic shared object) is an alternative to the somewhat cycle-expensive system call interface that the GNU/Linux kernel provides. But, before I explain how to cook up your own vDSO, in this brief jaunt down operating system lane, I cover some basics of vDSOs, what they are and why they are useful. more>>

Moose

By Henry Van Styn 

Perl has been around for more than 20 years. During that time, it has received its share of both praise and criticism, and lots of misconceptions surround it. Much of this stems from long-outdated notions of what Perl used to be, but have nothing to do with what Perl actually is today. more>>

Avogadro

Basic Chemistry on the GNOME Desktop

By Joey Bernard 

I've realized I've missed out on a huge area of computational science—chemistry. Many packages exist for doing chemistry on your desktop. This article looks at a general tool called avogadro. It can do computations of energy and gradient values. Additionally, it can do analysis of molecular systems, interface to GAMESS and import and export from and to several file formats. more>>

Arduino-Open Hardware and IDE Combo

By John Knight 

This article is a bit different from my usual column in two ways. First, it's starting with a hardware and software combo—something I've not done before. Second, the projects are linked to each other and come recommended to me by Perth LUG member, Simon Newton. more>>

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