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[MAN] uuidd

Content-type: text/html; charset=UTF-8 Man page of UUIDD

UUIDD

Section: System Administration (8)
Updated: July 2014
Index Return to Main Contents
 

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, --debug
Run uuidd in debugging mode. This prevents uuidd from running as a daemon.
-F, --no-fork
Do not daemonize using a double-fork.
-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, --no-pid
Do not create a pid file.
-p, --pid path
Specify the pathname where the pid file should be written. By default, the pid file is written to /run/uuidd/uuidd.pid.
-q, --quiet
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-activation
Do not create a socket but instead expect it to be provided by the calling process. This implies --no-fork and --no-pid. This option is intended to be used only with systemd(1). It needs to be enabled with a configure option.
-s, --socket path
Make uuidd use this pathname for the unix-domain socket. By default, the pathname used is /run/uuidd/request. This option is primarily for debugging purposes, since the pathname is hard-coded in the libuuid library.
-T, --timeout number
Make uuidd exit after number 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.
-h, --help
Display help screen 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>.  

SEE ALSO

uuid(3), uuidgen(1)  

AVAILABILITY

The uuidd daemon is part of the util-linux package and is available from the Linux Kernel Archive


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
EXAMPLE
AUTHOR
SEE ALSO
AVAILABILITY

This document was created by man2html, using the manual pages.
Time: 04:45:59 GMT, September 16, 2022

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