The ICCLab will be present at the Nagios World Conference 2014, which takes place Oct. 13th-16th in St. Paul, MN, USA. Konstantin Benz will speak about the employment of Nagios as a tool to monitor OpenStack clouds. While Nagios is the de facto Open Source standard for monitoring IT systems, the OpenStack community uses Ceilometer to monitor VMs and other resources in the cloud. The main reason for that is the special requirements of rating, charging and billing in the cloud: VM usage must be stored persistently, even when a VM has been shut down and deleted by an end user. In standard monitoring contexts it is not necessary to store data of resources which are not present in the system anymore. Ceilometer does a quite good job in monitoring virtual resources. On the other hand a system administrator might not be interested only in monitoring the virtual resources which are provided by OpenStack: monitoring OpenStack itself is also a major task in administration of an OpenStack cloud. While Ceilometer is mainly used for monitoring resources provided by OpenStack, it does not monitor availability and performance of servers that deploy OpenStack services. Nagios is the industry standard for monitoring physical IT infrastructures. Therefore we will discuss the question on how to integrate Nagios with Ceilometer on the Nagios World Conference.