Mastering Proxmox - Third Edition

KVM | Firewall

Unlike the Datacenter | Firewall feature, which applies to the whole cluster, the KVM firewall applies to the selected VM only. The KVM VM firewall allows you to configure each virtual machine with its own set of firewall rules, thus isolating each VM from the other even further. In a multi-tenant environment where there are many levels of users, this firewall option helps you prevent a VM from accessing another VM. In Chapter 9, The Proxmox VE Firewall, we will take a look at the VM firewall in detail.