UUIDD
Section: System Administration (8)
Updated: June 2011
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NAME
uuidd - UUID generation daemon
SYNOPSIS
uuidd
[
options]
DESCRIPTION
The
uuidd
daemon is used by the UUID library to generate
universally unique identifiers (UUIDs), especially time-based UUIDs,
in a secure and guaranteed-unique fashion, even in the face of large
numbers of threads running on different CPUs trying to grab UUIDs.
OPTIONS
- -d
-
Run uuidd in debugging mode. This prevents uuidd from running as a daemon.
- -h, --help
-
Display help screen and exit.
- -k, --kill
-
If currently a uuidd daemon is running, kill it.
- -n, --uuids number
-
When issuing a test request to a running uuidd, request a bulk response
of
number
UUIDs.
- -p, --pid path
-
Specify the pathname where the pid file should be written. By default,
the pid file is written to /var/run/uuidd/uuidd.pid.
- -q
-
Suppress some failure messages.
- -r, --random
-
Test uuidd by trying to connect to a running uuidd daemon and
request it to return a random-based UUID.
- -s, --socket path
-
Specify the pathname used for the unix-domain socket used by uuidd. By
default, the pathname used is /var/run/uuidd/request. This is primarily
for debugging purposes, since the pathname is hard-coded in the libuuid
library.
- -T, --timeout timeout
-
Specify a timeout for uuidd. If specified, then uuidd will exit after
timeout
seconds of inactivity.
- -t, --time
-
Test uuidd by trying to connect to a running uuidd daemon and
request it to return a time-based UUID.
- -V, --version
-
Output version information and exit.
EXAMPLE
Start up a daemon, print 42 random keys, and then stop the daemon.
-
uuidd -p /tmp/uuidd.pid -s /tmp/uuidd.socket
uuidd -d -r -n 42 -s /tmp/uuidd.socket
uuidd -d -k -s /tmp/uuidd.socket
AUTHOR
The
uuidd
daemon was written by Theodore Ts'o <
tytso@mit.edu>.
AVAILABILITY
The uuidd daemon is part of the util-linux package and is available from
ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
SEE ALSO
uuid(3),
uuidgen(1)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- OPTIONS
-
- EXAMPLE
-
- AUTHOR
-
- AVAILABILITY
-
- SEE ALSO
-
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