Requirements and operation

SNS firewall models on which Secure Boot is enabled by default

Secure Boot is enabled by default on the following SNS firewall models: SN-S-Series-220, SN-S-Series-320 and SN-M-Series-520.

Important information regarding the activation of Secure Boot

Do note that you can no longer perform the following operations on your SNS firewall after you enable Secure Boot:

• Reset the administrator password in single user mode,

• Start the SNS firewall on a backup partition in a version of SNS lower than 4.2.1,

• Start the SNS firewall on a USB key when restoring the program via USB key (USB Recovery),

• Install a version of SNS lower than 4.2.1.

Secure Boot cannot be enabled on all SNS firewall models. Refer to the list below to know which models are affected.

Required equipment

Depending on the SNS firewall model used, you will need the following items. Continue according to the model of your SNS firewall.

Model used	Elements
SN-S-Series-220 SN-S-Series-320 SN-M-Series-520 SN-M-Series-720 SN-M-Series-920	A computer with a terminal emulator installed, e.g., Putty, A USB-A to USB-C cable (provided with the product).
SN1100 SN3100 SNi20	A computer with a terminal emulator installed, e.g., Putty, An RJ45 to RS232 serial cable (provided with the product).