Name

uuidd — UUID generation daemon

Synopsis

uuidd [−d] [ −p pidfile ] [ −s socketpath ] [ −T timeout ]

uuidd [ −r | −t ] [ −n number ] [ −s socketpath ]

uuidd \-k

DESCRIPTION

The uuidd daemon is used by the UUID library to generate universally unique identifiers (UUIDs), especially time-based UUID's in a secure and guaranteed-unique fashion, even in the face of large numbers of threads trying to grab UUID's running on different CPU's.

OPTIONS

−d

Run uuidd in debugging mode. This prevents uuidd from running as a daemon.

−k

If a currently uuidd daemon is running, kill it.

−n number

When issuing a test request to a running uuidd, request a bulk response of number UUID's.

−p pidfile

Specify the pathname where the pid file should be written. By default, the pid file is written to /var/run/uuidd/uuidd.pid.

−s socketpath

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.

−r

Test uuidd by trying to connect to a running uuidd daemon and request it to return a random-based UUID.

−t

Test uuidd by trying to connect to a running uuidd daemon and request it to return a time-based UUID.

−T timeout

Specify a timeout for uuidd. If specified, then uuidd will exit after timeout seconds of inactivity.

AUTHOR

The uuidd daemon was written by Theodore Ts'o <[email protected]>.

AVAILABILITY

uuidd is part of the util-linux-ng package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.

SEE ALSO

libuuid(3), uuidgen(1)


  Copyright 2007 by Theodore Ts'o.  All Rights Reserved.
This file may be copied under the terms of the GNU Public License.