FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.
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FortiOS firmware allows the user to program a daily restart (reboot) of the FortiGate, at a pre-defined hour. 
This is a repeated reboot and it can be used for a one-time reboot at a predefined hour (with the mention that it needs to be removed afterwards).
An alternate option is available in the form of an auto-script that can further fine-tune the reboot, cycle, or add additional commands (from FortiOS 5.6). 
From FortiOS 6.2, a more advanced way can be used - Automation Stitch (FortiOS 6.0 has Automation Stitch, but can only be triggered by an event, and not Scheduled).


FortiOS (all versions)



Daily restart.
This option is configurable from the CLI as shown in the example below:
config system global
set daily-restart enable
set restart-time 05:06
Once the restart time is reached, the following message is displayed on the CLI console:
The system will reboot due to scheduled daily restart. Current time is 05:06
Syslog message relating to this event:
2024-30-05 05:06:51 log_id=0104041990 type=event subtype=admin pri=information fwver=040000 vd=root msg="Fortigate started"
And the following entry will be logged under the GUI event logs:
2021-10-21    05:06:51    information    admin    41990    Fortigate started
Automation stitch reboot.
This option presents another level of integration with the operational level of the network. 
An action can be triggered based on specific predefined triggers.
In this example, a periodic reboot not triggered by a specific event has been used.
Use short, simple names, and no spaces in the name field.
The CLI commands created by this action:
config system automation-action
edit "rebooot"
set action-type cli-script
set required enable
set script "exec reboot"
set accprofile "super_admin"
config system automation-trigger
edit "autoreboot"
set trigger-type scheduled
set trigger-frequency weekly
set trigger-weekday monday
set trigger-hour 20
set trigger-minute 10
config system automation-stitch
edit "auto reboot"
set trigger "autoreboot"
set action "rebooot"

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