GNU/Linux Command – HOSTID

hostid – Print the numeric id for the host.
It will print a 32-bit hexadecimal numerical identifier for the host machine. Certain product registration procedures use this number to brand a particular user license. The 32-bit quantity happens to be closely related to the system’s IP address, but that isn’t always the case.
If your IP address is then your hostid is A8C09B0E.
A8 — 168
C0 — 192
9B — 155
0E — 14
$ hostid — Print the hostid of the current host.
Read: man hostid

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