DMZ  in FortiGate 

DMZ (Demilitarized Zone) is a network architecture in which an organization's publicly accessible servers, such as web servers, email servers, and FTP servers, are placed in a separate and isolated network zone. The DMZ is separated from the organization's internal network by a firewall and is designed to provide an additional layer of security by limiting direct access to the organization's internal network.

Fortigate firewalls support DMZ configurations by allowing administrators to create virtual network interfaces (VLANs) that are mapped to physical interfaces on the firewall. The DMZ VLAN is then isolated from the internal network, but can still communicate with the external network.

The DMZ VLAN can be configured to allow traffic from the external network to reach the servers in the DMZ while blocking traffic from the DMZ to the internal network. This is typically accomplished by creating firewall policies that allow traffic to flow from the external network to the DMZ, but block traffic from the DMZ to the internal network.

Fortigate firewalls also support various security features such as intrusion prevention, application control, and web filtering, which can be configured to provide additional protection for servers in the DMZ.

Overall, DMZ configuration in Fortigate firewalls provides an important layer of security for organizations that need to make certain services accessible to the public while also protecting their internal networks from potential security threats.