Shared services are services designed to run on multiple CloudGen Firewalls.
For more information, see How to Configure a Shared Service.
The distributed firewall (formerly Cascaded Firewall or cfirewall) is a firewall service distributed across multiple firewalls. It is a variant of the regular firewall service, designed to simplify firewall administration by multiple administrators. The distributed firewall is a shared service and replaces the standalone firewall service. You cannot run a distributed firewall service and a standalone firewall service together on a virtual server.
Fore more information, see Distributed Firewall.