ethtool -e eth0
Locating the serial number of your pfSense installation is straightforward: pfsense serial number
: If you are using a third-party server (like Dell or HP), pfSense may display the hardware serial number in the same widget, provided the BIOS populates that field. If it's not found, you may see a "Host UUID" instead. 2. Locate Serial Number via Command Line (CLI) ethtool -e eth0 Locating the serial number of
: Tied to the physical hardware or BIOS. It is used for warranty claims and original order verification Netgate Device ID (NDI) : A unique software-calculated string used to link support contracts pfsense serial number
lspci -nn | grep Ethernet
How to find product Serial Number and Check Number | Official Support 02-Feb-2026 —
ethtool -e eth0
Locating the serial number of your pfSense installation is straightforward:
: If you are using a third-party server (like Dell or HP), pfSense may display the hardware serial number in the same widget, provided the BIOS populates that field. If it's not found, you may see a "Host UUID" instead. 2. Locate Serial Number via Command Line (CLI)
: Tied to the physical hardware or BIOS. It is used for warranty claims and original order verification Netgate Device ID (NDI) : A unique software-calculated string used to link support contracts
lspci -nn | grep Ethernet
How to find product Serial Number and Check Number | Official Support 02-Feb-2026 —
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