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)
On the main dashboard, look for the System Information widget. pfsense serial number
The easiest way to find the serial number is through the pfSense WebGUI dashboard . For generic hardware where a serial number isn't
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 The easiest way to find the serial number
If you are connected via SSH or a console cable, you can pull the serial number directly from the system environment using these commands:
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
In the WebGUI, navigate to Diagnostics > Command Prompt and execute the dmidecode command if you don't have SSH enabled. 3. Physical Hardware Label