How to get the unique unix id of a machine?

Question

ubuntu

I have a single board computer running Ubuntu 18.04 installed on an SD card. It is necessary to obtain a unique identifier for this computer tied to the serial numbers of the processor, and the identifier must not change after the system is rebooted.

Answer 1

try
1. hostid
2. cat /etc/machine-id
3. md5sum /proc/cpuinfo 4. blkid
|grep UUID|md5sum
5. dmidecode |grep -i uuid
that Linux can get it. And to get attached to the list of processors + drives and other things that do not change during reboot - you can simply generate a text report and run it through md5

Answer 2

This single-board has a built-in network card for sure, and it has a unique MAC, which is easy to get with one command without digging into the output of more complex utilities.

Answer 3

lsw??
*-core
********************
description: Motherboard
version: Rev x.xx
serial: MS1C85B12X00871
slot: To Be Filled By OEM
*-firmware
description: BIOS
**** *********
version: 0709
date: 12/05/2008
*-cpu
description: CPU
**************
serial: To Be Filled By OEM

Answer 4

Machine ID