I have a server which is already set up, being used as a web server mainly.
The original plan was to set it up as a KVM host but I didn't have time so simply set up the web sites and off it went.
Now I need to get back to this and figure out if I can still add KVM on it but everything I read talks about first using iptables instead of firewalld and how iptables has to be set up to allow the virtual routing.
I don't want to mess with the server because it's running live sites but I still need to get it to host vms.
It's just a server so I'm assuming I can still turn it into a vm host but need to know the steps so I don't take it down while I'm doing the changes.
Last part of the question is... can ESXi vms be converted to be hosted on Centos7 KVM? Most of them which are important are all Centos based, a new Debian vms.