Nagios - Architecture

This chapter talks in detail about Nagios architecture.

Nagios Architecture

The following points are worth notable about Nagios architecture −

  • Nagios has server-agent architecture.

  • Nagios server is installed on the host and plugins are installed on the remote hosts/servers which are to be monitored.

  • Nagios sends a signal through a process scheduler to run the plugins on the local/remote hosts/servers.

  • Plugins collect the data (CPU usage, memory usage etc.) and sends it back to the scheduler.

  • Then the process schedules send the notifications to the admin/s and updates Nagios GUI.

Nagios Architecture

The following figure shows Nagios Server Agent Architecture in detail −

Server Agent Architecture