1.Install icinga2 using yum install icinga2. At this time, my hostname is still the generated one from Azure: [root@vm-icinga2test-01 ~]# hostnamectl Static hostname: vm-icinga2test-01 Icon name: computer-vm

In the company that i am working we are using Icinga2 as our server monitoring tool. It really helps me to be able check whether a server has a problem with its CPU usage, memory , security related or