FortiGate Firewall Configuration Backup and Restore procedure Firmware V4.0:
Do the following tasks to take FortiGate firewall backup.
Steps:
- Connect the firewall through browser.
2. Login to the firewall (Enter User name & Password) (see Figure-4).

3. After logging in, click on System –>Dashboard –> Dashboard on the left hand side of the window (see Figure-5)

4. Right side pane of the window, under System Information –> System Configuration –> click on Backup (see Figure-6)

5. Backup window will appear (see Figure-7); Enter a password to encrypt the configuration file. You will need this password while restoring the configuration file. Confirm Enter the password again to confirm the password. Click on Backup tab.

Restore –
After logging in, click on System –>Dashboard –> Dashboard on the left hand side of the window.
Right side pane of the window, under System Information –> System Configuration –> click on Backup (see Figure-8)

7. Use the “choose file” button if you are restoring the configuration file from the management computer.
Select the configuration file name from the browse list if you are restoring the configuration file from the USB disk.
8. Enter the password, you entered when backing up the configuration file.

NOTE: If the password is forgotten, there is no way to use the file.
source: fortinet