...
 | (no special indication apart from the color) The service is an active check . Active checks can be performed at any time. |
 | The service is a passive check . Passive checks receive the information from an external device or daemon. Therefore, checks cannot be performed directly. |
 | The notifications for the service have been disabled |
...
| . |
Problems and problems history
Whenever there is some service that is not in OK status, you will have a blinking light in the corresponding host indicating that something went wrong. In order to have a complete overview of the current problems in an appliance, you can go to the 
link. This overview will let
Actions
Acknowledging problems
...