Best way to get machine id on Linux?

linux unique gnu uniqueidentifier
user663896 picture user663896 · Apr 14, 2012 · Viewed 63.9k times · Source

What is the best-practiced way to get an unique machine ID in GNU/Linux for i386 architecture?

Are there any good ways except the mac address?

Answer

c00kiemon5ter picture c00kiemon5ter · Apr 14, 2012

Depending on your kernel, the DMI information may be available via sysfs. Try those:

# cat /sys/class/dmi/id/board_serial
xxxxxxxxxxxxxxx
# cat /sys/class/dmi/id/product_uuid
xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx

or using a tool

# dmidecode -s baseboard-serial-number
...
# dmidecode -s system-uuid
...

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