QGIS is a free and open source Geographic Information System (GIS). It is used for effectively working with spatial information and available for...

If you want to learn how to use Puppet for configuration management and automation, or you've been put in charge of an established Puppet...

This course teaches you everything you need to know to use your Linux server. The first part of the course covers the basics - how to access the...

This course will provide an introduction to database concepts and techniques for working with SQL databases.

This course shows you how to use the PostgreSQL database system from a DBA perspective.  We'll cover installation, configuration and tuning.

This course will introduce two widely used Open Source graphics programs: Inkscape and Gimp.

Shell scripts are a cornerstone in modern software systems. They also break easily and in strange ways, like when August comes around or a...