Problem With ESXi: There are lot of people who use VMWare ESXi for virtualization. But most of them manage through Vsphere and have multiple servers VSAN clusters. The vsphere license is not free. The main limitation i faced with free version of ESXi, is that there is no proper backup solution. I had to shutdown VMs and copy manually to NAS. I tried some solutions found in reddit communities and third party software, none of which served my purpose properly.
After getting my server up and running, i installed ubuntu server 18.04 on bare metal. Few days passed and already it had more than basic nginx and php. Also I felt the server hardware was not used to its full potential by using it just as a webserver. I was searching for a solution and came across VMware ESXI. It is bare metal hypervisor. Having individual virtual machines would be easy for managing different set of software.