Pfsense Serial Number ((exclusive)) -

If you are using official Netgate hardware, the Serial Number will be clearly listed here.

If you are connected via SSH or a console cable, you can pull the serial number directly from the system environment using these commands: pfsense serial number

You can also try running kenv to see various kernel environment variables that often include hardware identifiers. If you are using official Netgate hardware, the

Run dmidecode -t system | grep Serial to pull the serial number directly from the hardware BIOS. pfsense serial number