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zfs hostId: Instructions to derive from machine-id

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wmertens 2014-12-18 22:52:29 +01:00
parent 86971fd33b
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nixos/modules/tasks/network-interfaces.nix
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@ -233,8 +233,12 @@ in
The 32-bit host ID of the machine, formatted as 8 hexadecimal characters. The 32-bit host ID of the machine, formatted as 8 hexadecimal characters.
You should try to make this ID unique among your machines. You can You should try to make this ID unique among your machines. You can
generate a random 32-bit ID using the following command: generate a random 32-bit ID using the following commands:
<literal>cksum /etc/machine-id | while read c rest; do printf "%x" $c; done</literal>
(this derives it from the machine-id that systemd generates) or
<literal>head -c4 /dev/urandom | od -A none -t x4</literal> <literal>head -c4 /dev/urandom | od -A none -t x4</literal>
''; '';
}; };