Customer who has a ProxySG that is already up and running would like to secure its serial port.
WARNING: Regarding securing the serial port, if one forgets all the passwords (built-in admin, front panel, and serial console), one cannot access the ProxySG and will need to use the appliance’s reset button or, if it is a legacy model without a reset button, please return it to Symantec. Therefore, it is recommended to NOT set a serial console password as the ProxySG does not have a password recovery option.
Having said the above, if one wish to proceed in securing the serial port, it can be done by following the steps below: