Home ›

HOW-TOs

Android Programming with App Inventor

By Amit Saha 

Drag and drop your way to Android programming.

MIT App Inventor, re-released as a beta service (as of March 5, 2012) by the MIT Center for Mobile Learning after taking over the project from Google, is a visual programming language for developing applications for the Android mobile computing platform. more>>

Calculating Day of the Week, Finally

By Dave Taylor 

As with many of the challenges we tackle, the latest project has sprawled across more articles than I ever expected when I first received the query from a reader. The question seems reasonably simple: given a month, day number and day of the week, calculate the most recent year that matches those criteria. more>>

Hack and / - Password Cracking with GPUs, Part III: Tune Your Attack

By Kyle Rankin 

You've built the hardware, installed the software and cracked some passwords. Now find out how to fine-tune your attacks. more>>

Ahead of the Pack: the Pacemaker High-Availability Stack

By Florian Haas 

A high-availability stack serves one purpose: through a redundant setup of two or more nodes, ensure service availability and recover services automatically in case of a problem. Florian Haas explores Pacemaker, the state-of-the-art high-availability stack on Linux. more>>

Rock Out with Your Console Out

By Rebecca Chapnik 

Playing and managing your music in text mode. more>>

Seamlessly Extending IRC to Mobile Devices

By Bill Childers 

Internet Relay Chat (IRC) is one of the older real-time communications methods still in active use on the Internet. Due to its popularity, flexibility and cross-platform nature, it still has a very vibrant user base today. more>>

calendar

Calculating Day of the Week

By Dave Taylor 

For those of you playing along at home, you'll recall that our intrepid hero is working on a shell script that can tell you the most recent year that a specific date occurred on a specified day of the week—for example, the most recent year when Christmas occurred on a Thursday. more>>

Hack and / - Password Cracking with GPUs, Part II: Get Cracking

By Kyle Rankin 

Your hardware is ready. Now, let's load up some software and get cracking. more>>

OpenLDAP Everywhere Reloaded, Part I

By Stewart Walters 

Directory services is one of the most interesting and crucial parts of computing today. They provide our account management, basic authentication, address books and a back-end repository for the configuration of many other important applications. more>>

Chemistry the Gromacs Way

By Joey Bernard 

In this article, I'm diving into chemistry again. Many packages, both commercial and open source, are available to make chemistry calculations at the quantum level. The one I cover here is gromacs (http://www.gromacs.org). It should be available for your distribution via its package manager. more>>

Hack and / - Password Cracking with GPUs, Part I: the Setup

By Kyle Rankin 

Bitcoin mining is so last year. Put your expensive GPU to use cracking passwords.

When the Bitcoin mining craze hit its peak, I felt the tug to join this new community and make some easy money. I wasn't drawn only by the money; the concepts behind Bitcoin mining intrigued me, in particular the new use of graphics processors (GPUs). With a moderately expensive video card, you could bring in enough money to pay off your initial investment and your electricity bill in a relatively short time. more>>

catalyst logo

An Introduction to Application Development with Catalyst and Perl

By Henry Van Styn 

Catalyst is the latest in the evolution of open-source Web development frameworks. Written in modern Perl and inspired by many of the projects that came before it, including Ruby on Rails, Catalyst is elegant, powerful and refined. It's a great choice for creating any Web-based application from the simple to the very complex. more>>

HTML5 for Audio Applications

By Paul Freitas 

HTML5 lets you play music through compliant browsers—no "cloud" required. more>>

MariaDB/MySQL, PostgreSQL and SQLite3 - Comparing Command-Line Interfaces

By Daniel Bartholomew 

Don't be afraid of using your chosen database's command-line client. more>>

Hack and /: Automatically Lock Your Computer

By Kyle Rankin 

If you've ever worked with pranksters, you've probably come across this classic office prank. First, the unsuspecting victim leaves his computer and goes to lunch or a long meeting and doesn't lock his screen. The prankster then takes a screenshot of his current desktop, hides all the desktop icons and any taskbars, and sets the background to be the screenshot the prankster just took. more>>

Syndicate content
Webcast
More Resources
How to Build an Optimal Hadoop Cluster to Store and Maintain Unlimited Amounts of Data Using Microservers

Realizing the promise of Apache® Hadoop® requires the effective deployment of compute, memory, storage and networking to achieve optimal results. With its flexibility and multitude of options, it is easy to over or under provision the server infrastructure, resulting in poor performance and high TCO. Join us for an in depth, technical discussion with industry experts from leading Hadoop and server companies who will provide insights into the key considerations for designing and deploying an optimal Hadoop cluster.

Learn More

Sponsored by AMD

White Paper
More Resources
Private PaaS for the Agile Enterprise

If you already use virtualized infrastructure, you are well on your way to leveraging the power of the cloud. Virtualization offers the promise of limitless resources, but how do you manage that scalability when your DevOps team doesn’t scale? In today’s hypercompetitive markets, fast results can make a difference between leading the pack vs. obsolescence. Organizations need more benefits from cloud computing than just raw resources. They need agility, flexibility, convenience, ROI, and control.

Stackato private Platform-as-a-Service technology from ActiveState extends your private cloud infrastructure by creating a private PaaS to provide on-demand availability, flexibility, control, and ultimately, faster time-to-market for your enterprise.

Learn More

Sponsored by ActiveState