超详细CentOS 7 x / Ubuntu 15.04 安装icinga Web 2

Icinga is an open source network monitoring application that provides us with Icinga Web 1 and Icinga Web 2 interfaces to fully manage and monitor the hosts and services through its dashboard. Icinga Web 2 is the successor of Icinga web which is lightweight, fast and flexible to embed into other projects that supports multiple authentication methods like Active Directory, LDAP or database and multiple monitoring back ends. So, this a major advance in the creation of hosts and services actions, instead of defining them via Icinga"s configuration files and every user is now enabled to create them with the web interface and even share them to others. Icinga is an open source network monitoring applic