Pfsense Serial Number -

Finding the serial number for your pfSense device is essential for registering your software, getting technical support, or checking warranty status. Whether you are using a dedicated Netgate appliance or custom hardware, there are three primary ways to locate this information: through the WebGUI, via the command line (CLI), or on the physical device itself. 1. Locate Serial Number via WebGUI (Recommended)

⚠️ : Do not change the serial number on Netgate hardware. It voids support and ACB functionality.

If you cannot access the web interface, you can retrieve the serial number via the SSH console or a direct serial cable connection. Using SSH or Local Console pfsense serial number

Reboot the machine. Run lspci -vv or check dmesg to see if the new serial number stuck.

The easiest way to find your serial number is through the pfSense web dashboard. This method applies directly to official Netgate hardware. Finding the serial number for your pfSense device

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The physical hardware ID assigned during manufacturing. This is what you need for warranty claims. Locate Serial Number via WebGUI (Recommended) ⚠️ :

: The command kenv can sometimes display the serial number stored in the system environment.

Essential for tracking hardware in data centers or multi-site deployments.