Pfsense | Serial Number _hot_

You can also try running kenv to see various kernel environment variables that often include hardware identifiers.

For official Netgate appliances (such as the SG-2100 or XG-1541), the serial number is printed on a physical sticker. System serial number | Netgate Forum pfsense serial number

If you are using official Netgate hardware, the Serial Number will be clearly listed here. You can also try running kenv to see

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

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

There are three primary ways to locate your serial number: through the web-based interface, the command-line interface (CLI), or the physical hardware itself. 1. The WebGUI Dashboard