1. Nagios / Naemon
Monitoring engine. The binary is located under: /opt/openitc/nagios/bin.
Config file: /etc/openitcockpit/nagios.cfg
Broker module for Nagios/Naemon: /opt/statusengine/statusengine.o
Process all statusngin_* queues from Gearman-Job-Server.
Save monitoring events to the MySQL database
Process performance data and create Whisper (Graphite) or .rrd (RRDTool) files.
3. OITC Cmd
Alias for the naemon.cmd, which can, for example, translate UUIDs into real hostnames etc.
Convert non UTF-8 data to UTF-8.
Transfers data from the master to the satellite and vice versa and, if naemon is the monitoring engine, passes this to the Naemon query handler.
Provides and manages queues for various tasks.
openITCOCKPIT background process which process the Gearman-Job-Server queue oitc_gearman
7. Nginx / PHP_FPM
Executes commands with root privileges
NPCD Processes performance data in /opt/openitc/nagios/var/spool/perfdata and converts this into *.rrd and *.xml files and puts these into /opt/openitc/nagios/share/perfdata
Deprecated (replaced by Statusengine)