Icinga2 installation on Ubuntu 16. 04

in This Tutorial you will learn ! how to install icinga monitoring tool on ubuntu linux 16.04
Icinga 2 is an open source monitoring system which checks the availability of your network resources, notifies users of outages, and generates performance data for reporting. Scalable and extensible, Icinga 2 can monitor large, complex environments across multiple locations.

[itube]

Thanks a lot! If anyone have a problem when navigating to the icinga2 web page be sure to install: apt-get -y install php7.0 libapache2-mod-php

[muhammadarslanghafoor]

showing the error "failed to add key" while adding the repository. how to resolve it?

[rajeshballa]

reporting tab is missing ? and how to plotting the graphs ?