Guard Your Network with IPCop, Part 4: Configuring OpenVPN with Zerina Add-on
The first article in this series discussed the basic installation and configuration of IPCop 1.4.21. Subsequent articles discussed five important add-ons used to enhance IPCop’s functionality: Advanced Proxy, URL Filter, Update Accelerator, Calamaris…
Installing and Using PostgreSQL Modules
In this article, we will learn how to install and use the PostgreSQL modules chkpass, fuzzystrmatch, isn and hstore. Modules add different capabilities to a database, like admin and monitoring tools, new data…
Exploring Software: A Software Engineer’s Toolkit
Software engineering recommendations have not changed. The issues and concerns have been known for years. However, with the availability of excellent tools, it is now no longer a pain to implement and follow…
Device Drivers, Part 16: Kernel Window — Peeping through /proc
This article, which is part of the series on Linux device drivers, demonstrates the creation and usage of files under the /proc virtual filesystem. After many months, Shweta and Pugs got together for…
FOSS is __FUN__: The Fifth Freedom
Stallman’s classic definition of open source speaks of the four freedoms — the freedom to run the program in any way one likes, the freedom to study the source code and modify it,…
ownCloud 3 Makes Setting up and Accessing Your Own Cloud Dead Easy
We are all aware that storing data in the cloud has its own advantages, making our data available everywhere we go. But storing our personal data on someone else’s server might lead to…
Taming the Big Data Beast with Hadoop and Alternatives
Turn the clock back to 1970 — the year in which Edgar Codd published the paper “A Relational Model of Data for Large Shared Data Banks”. In it he described a language called…
Cyber Attacks Explained: Web Exploitation
Websites are no longer merely about having an “Internet presence” today, but are also used for commercial transactions and to transfer sensitive data. Such wide usage helps crackers gain more knowledge on vulnerabilities…






