
Thruk
Thruk is free of charge and completely open source software. There is no open core or community version. Although Support is available. Thruk is a multibackend monitoring webinterface which currently supports Naemon, Nagios, Icinga and Shinken as backend using the Livestatus API. It is designed to be a 'dropin' replacement and covers almost 100% of the original features plus adds additional enhancements for large installations and increased usability.