: You can attempt to find the serial number using the dmidecode or kenv commands via the Diagnostics > Command Prompt or an SSH/console session. 2. Software & Support (Netgate ID/Serial)
This dumps the EEPROM. You will see hexadecimal values. Look for the area where the MAC/Serial is stored. pfsense serial number
If you cannot access the web interface, you can retrieve the serial number via the shell (SSH or Console). Using dmidecode: You can install and use the tool to pull hardware info directly from the BIOS. /usr/local/sbin/dmidecode -s system-serial-number Using kenv: Some systems store this in the kernel environment. kenv smbios.system.serial 4. Physical Labels For physical appliances, check the following locations: Bottom or Back: Most official Netgate Security Gateways have a sticker with the serial number and NDI. Original Packaging: The serial number is typically printed on the product box. Why You Need It System serial number | Netgate Forum : You can attempt to find the serial
(This often reveals the specific Netgate device ID and hardware serial). You will see hexadecimal values