Pfsense Serial Number =link= Jun 2026

When managing a pfSense firewall, the "serial number" can refer to two different things: the (relevant for appliances like Netgate SG-1100, SG-3100, etc.) or the software license serial number (relevant for pfSense Plus).

The live firewall’s console flickered. A new line of text appeared, not part of any boot sequence. pfsense serial number

| Feature | pfSense CE (Community) | pfSense Plus (on Netgate HW) | pfSense Plus (VM/Whitebox) | | :--- | :--- | :--- | :--- | | | No | Yes (Hardcoded) | Yes (Software Key) | | Where to find it? | N/A or Motherboard S/N | System > General Setup | System > General Setup | | TAC Support eligibility | No | Yes | Yes (with subscription) | | AutoConfigBackup | Yes (but limited) | Yes (full) | Yes (with license) | | CE to Plus upgrade | N/A | Auto via serial | Requires purchase | When managing a pfSense firewall, the "serial number"

In the library’s server rack, the replacement SG-3100 hummed quietly. Alex ran a final check: | Feature | pfSense CE (Community) | pfSense

He opened a ticket with Netgate Support, attaching the output of cat /etc/version . Within minutes, support identified the serial as part of a batch with known eMMC wear issues. Because the serial number was on file, they sent a replacement RMA unit overnight—no questions asked.

dmidecode -s system-serial-number

Finding the serial number for a pfSense system is essential for verifying hardware support, checking warranty status, or identifying a device within your network