networking - How to generate an unique ID for a given linux machine? -


my python application running daemon in variety of linux distributions trying register server using machine's ip address , fqdn hostname(given "hostname -f" command) primary key.

now facing problem when 2 machines having same hostname , ip address. eg in case of 2 vm's running on 2 seperate machines, hostname "localhost.localdomain" , ip address "192.168.0.2" both of them.

is there unique way differentitate 2 machines. (maybe other third parameter guarantee uniqueness across linux machine )

the mac address should unique per network interface. maybe can try combination of ip, mac , host name?

another option create uuid , save on machine.


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