Chapter 10 Install and System Administration for FortiOS 5.0 : Using the web-based manager : Dashboard : System Information widget : Remote FortiGuard backup and restore options
  
Remote FortiGuard backup and restore options
Your FortiGate unit can be remotely managed by a central management server that is available when you register for the FortiGuard Analysis and Management Service. FortiGuard Analysis and Management Service is a subscription-based service and is purchased by contacting support.
After registering, you can back up or restore your configuration. FortiGuard Analysis and Management Service is useful when administering multiple FortiGate units without having a FortiManager unit. Using this service, you can also upgrade the firmware. Upgrading the firmware is available in the Firmware Upgrade section of the backup and restore menu.
When restoring the configuration from a remote location, a list of revisions is displayed so that you can choose the configuration file to restore.
 
The FortiGuard-FortiManager protocol is used when connecting to the FortiGuard Analysis and Management Service. This protocol runs over SSL using IPv4/TCP port 541 and includes the following functions:
detects FortiGate unit dead or alive status
detects management service dead or alive status
notifies the FortiGate units about configuration changes, AV/IPS database update and firewall changes.