Centreon, previously Oreon-Project is network, system and application monitoring system modelled on the best ever opensource monitoring solution, Nagios. Centreon provides a new frontend and new functionnalities to Nagios.
It allows you to be more efficient in your network monitoring, but also allows you to make your supervision information readable by a largest range of users. Indeed, a non technical user can now use the Centreon/Nagios couple to easily understand your network infrastructure thanks to charts and graphical representations of the gathered information. Skilled users still have access to specific and technical information collected by Nagios though.