/etc/icinga2/features-available/notification.conf is in icinga2-common 2.6.0-2+deb9u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 | /**
* The notification component takes care of executing service checks.
*/
library "notification"
object NotificationComponent "notification" { }
|