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ZGENHOSTID(8) System Manager's Manual (smm) ZGENHOSTID(8)

NAME

zgenhostid —
generate and store a hostid in /etc/hostid

SYNOPSIS

zgenhostid [hostid]

DESCRIPTION

If /etc/hostid does not exist, create it and store a hostid in it. If the user provides [hostid] on the command line, store that value. Otherwise, randomly generate a value to store.

This emulates the genhostid(1) utility and is provided for use on systems which do not include the utility.

OPTIONS

[hostid] Specifies the value to be placed in /etc/hostid. It must be a number with a value between 1 and 2^32-1. This value must be unique among your systems. It must be expressed in hexadecimal and be exactly 8 digits long.

EXAMPLES

Generate a random hostid and store it
# zgenhostid
Record the libc-generated hostid in /etc/hostid
# zgenhostid $(hostid)
Record a custom hostid (0xdeadbeef) in etc/hostid
# zgenhostid deadbeef

SEE ALSO

spl-module-parameters(5), genhostid(1), hostid(1)
July 24, 2017 Linux