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Changes
→On First Boot
*SELinux is set to enforcing.
*The machine must be fully updated.
*Do install iptables-services on your CentOS virtualization host, but do not install iptables-serviceson guest VMs. In this course we will use both iptables and firewalld as for our firewall.
*Install libvirt and virt-manager. Set the virtualization service to start automatically when the machine boots.
*Reboot your machine