Webmin is a web-based graphical UNIX system administration tool written by Jamie Cameron in the Perl programming language that is designed to be lightweight, functional, and easily extensible. Webmin has been translated to over 20 languages and dialects at the time of this writing, and it has been embraced by a number of...

Joomla! is one of the most popular open source content management systems. It's powerful, it's relatively easy to learn, and it's freely available, which explains why over the last few years it's become the engine behind millions and millions of websites worldwide. In January 2011, the much awaited version 1.6 was released....

Moodle is becoming increasingly popular in schools worldwide due to its ease of use and flexibility. Science is the perfect subject to benefit from the features of Moodle as students will find it the easiest to learn with the help of interactive content, rather than reading textbooks. This book will teach you how to create quizzes, start...

R is a powerful tool for statistics, graphics, and statistical programming. It is used by tens of thousands of people daily to perform serious statistical analyses. It is a free, open source system whose implementation is the collective accomplishment of many intelligent, hard-working people. There are more than 2,000 available add-ons, and R...

OpenAM is an open source continuation of the OpenSSO project that was taken over, and later scrapped, by Oracle. OpenAM is the only commercial-grade, feature-rich web application that provides SSO solutions. It has a variety of features and a powerful Single Sign-On (SSO) capability, but the implementation can be tricky, and the unorganized...

In 1862, the gardener James Bateman sent several specimens of the Christmas orchid to Charles Darwin. This orchid was first planted in Britain in 1855 and it did not blossom until 1857. It had been discovered several decades before by the French botanist Louis-Marie Aubert du Petit-Thouars in Madagascar in 1822. The most significant...

Ad hoc and sensor networks continue to have a growing impact on communication. These cost-effective wireless networks provide location independent computing in environments ranging from military battlefields to in-home patient monitoring systems. However, having real-time connectivity to critical information over an open...

You may be reading this book for many reasons. It could be because you heard all about Hadoop and what it can do to crunch petabytes of data in a reasonable amount of time. While reading into Hadoop you found that, for random access to the accumulated data, there is something called HBase. Or it was the hype that is prevalent these days...

This book is designed to help you prepare for the Cisco VPN certification exam. The VPN exam is one in a series of exams required for the Cisco Certified Network Professional - Security (CCNP - Security) certification. This exam focuses on the application of security principles with regard to Cisco IOS routers,...