Open Gurus
Big data

Databases in the Era of Cloud Computing and Big Data

We take a look at the directions in which databases are evolving, driven by the twin factors of the “Cloud” and “Big Data”. Let’s start with a quick look at cloud computing, and…

Sed Explained

Sed Explained, Part 1

UNIX-like operating systems have numerous powerful utilities accessible via the command-line and shell-scripting, which are flexible enough to operate in a variety of problematic domains. Text processing is one of these. Among the…

Search

The Needle and the Haystack: Exploring Search Models, Part 2

In the previous article, we demystified some search-related jargon, and learned how the humble Grep can be used to simulate a Boolean-model search engine. In this concluding article on the subject, let us…

Search

The Needle and the Haystack: Exploring Search Models, Part 1

Searching for the proverbial needle in the haystack occurs millions of times a day in the realm of cyberspace. Ever looked under the hood of a search engine — that apparently Rube Goldberg…

Splitting the screen into windows

Let’s Play with GNU Screen

Many GNU/Linux users spend time working at the command line. The GNU Screen utility can be of great use if you work with multiple shells at a time. We could also call Screen…

Google Maps integrated into an HTML page

Google Maps JavaScript API: Making Your Website Livelier

This article explains how to embed Google Maps in a website, using the JavaScript API for Maps. Mapping solutions can be embedded in your website to display locations of various places, provide directions,…

Cryptography and Steganography with Python

Cryptography and Steganography with Python

Steganography and cryptography have been widely used to hide sensitive information. This article offers a brief introduction to how both these methods can be used together. The implementation uses Python with the Stepic…

Talk about a slideshow

S5: A Simple Web-based Presentation System

S5 is a slideshow system for browsers that lets you run presentations like those in MS PowerPoint or OpenOffice.org Impress without a dedicated application — you just need a Javascript-capable browser, and you’re…

VBA Macro Interoperability in OpenOffice.org

This article explains VBA support in OpenOffice.org, including the build process of Go-oo.

Dabble with Netkit to Sandbox a Network

Networking is very interesting and I’m sure many of us would like to experiment with it, but the unavailability of laboratories with sufficient computers is a stumbling block. What if I tell you that you can turn any computer into a network device at no extra cost?

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