Pfsense Serial Number -

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

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

For generic hardware where a serial number isn't populated in the BIOS, pfSense will display a Host UUID instead. 2. Command Line Interface (CLI) Run dmidecode -t system | grep Serial to

You can also try running kenv to see various kernel environment variables that often include hardware identifiers. Command Line Interface (CLI) You can also try

On the main dashboard, look for the System Information widget.

The pfSense serial number is a unique identifier primarily used to identify hardware appliances for support, warranty, and software registration. While it is most critical for official Netgate hardware, even custom builds may display a serial number or a host UUID depending on the system's BIOS. Where to Find Your pfSense Serial Number