A junior administrator accidentally locked themselves out of the FortiGate CLI after multiple incorrect password attempts. What is the standard administrative method to recover access without losing the configuration?
The maintainer account is a hard-coded recovery login accepted only on the physical console during the boot sequence, so it bypasses the locked-out admin credentials entirely while leaving the saved configuration intact, satisfying the no-configuration-loss constraint.
Why this answer
The standard recovery method for a locked-out FortiGate administrator without losing configuration is to connect via the physical console port and use the 'maintainer' login procedure during a reboot. This involves rebooting the device, interrupting the boot process, and logging in with the maintainer account to reset the admin password or unlock the account while preserving the configuration.
Exam trap
FORTINET-NSE123 often tests the misconception that a factory reset or waiting for a lockout timer is the standard recovery method, when the maintainer console procedure is the correct non-destructive approach.
How to eliminate wrong answers
Option A is wrong because a hardware factory reset erases all configuration, which violates the requirement to recover access without losing the configuration. Option B is wrong because the default factory IP 192.168.1.99 is only available on a factory-reset device and does not help recover a locked-out configured device. Option C is wrong because the default lockout timer is not 24 hours; FortiGate lockout duration is configurable and typically much shorter, and waiting does not guarantee access if the lockout is indefinite or the admin account is disabled.