Nagios is now the de facto standard solution for network monitoring in open source systems. In Nagios - Das Praxisbuch: Open Source-Monitoring im Unternehmen (currently available in German only), using a fictitious company as an example, Nagios expert Gerhard Laußer discusses the ins and outs of open-source network monitoring. His book focuses solely on practical needs and essential tasks such as installation, printer and Web server monitoring, and monitoring in heterogeneous networks.