Puppet

Linux, in keeping with Unix traditions, doesn't have a comprehensive systems management API. Instead, management is done through a variety of special-purpose tools and APIs, all with their own conventions and idiosyncrasies. That makes scripting even simple systems-management tasks difficult and brittle. For example, changing the login shell of the "app" user is done by running usermod -s /sbin/nologin app. This works great until it is attempted on a system that does not have an app user. To fix the ensuing failure, the enterprising script writer might now resort to...

In Eastern and Southern Africa, women are still dying unnecessarily during the basic, natural act of giving life. According to Unicef, “In 2010, close to 58,000 women lost their lives during pregnancy and childbirth, accounting for more than one fifth of all such deaths in the world.” Gustav Praekelt, founder of the South African design and development firm Praekelt.com, was deeply affected by the high maternal mortality rate in his country and realized in 2007 that open source software and mobile phones could help provide critical information and services to combat poverty and maternal mortality rates -- among other social issues -- across the continent and potentially around the world.