Hi there.
Proxmox announce the new version 3.3 with Firewall inside.
I have tested it by using /etc/apt/sources.list
# PVE pvetest repository provided by proxmox.com
deb http://download.proxmox.com/debian wheezy pvetest
It shows incredible new system. Now we can do personal rules, groups, classes and use firewall for host and guest in a node.
I hope that can be managed by our fantastic WHMCS modules garden!
http://forum.proxmox.com/threads/19005- ... entication
http://pve.proxmox.com/wiki/Proxmox_VE_Firewall