zgenhostid —
generate host ID into /etc/hostid
| zgenhostid |
[-f]
[-o
filename]
[hostid] |
Creates
/etc/hostid file and stores the host ID in
it. If
hostid was provided, validate and
store that value. Otherwise, randomly generate an ID.
- -h
- Display a summary of the command-line options.
- -f
- Allow output overwrite.
-
-o
filename
- Write to filename instead of
the default /etc/hostid.
- hostid
- Specifies the value to be placed in
/etc/hostid. It should be a number with a
value between 1 and 2^32-1. If 0, generate a
random ID. This value must be unique among
your systems. It must be an 8-digit-long
hexadecimal number, optionally prefixed by “0x”.
/etc/hostid
- 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
- Record a custom hostid
(0x01234567) in
/tmp/hostid and overwrite the
file if it exists
-
# zgenhostid
-f -o
/tmp/hostid 0x01234567
genhostid(1),
hostid(1),
sethostid(3),
spl(4)
zgenhostid emulates the
genhostid(1) utility and is provided for use on
systems which do not include the utility or do not provide the
sethostid(3) function.