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UUIDD(8)							      UUIDD(8)

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/lib/libuuid/uuidd.pid.

       -s socketpath
	      Specify  the  pathname  used  for the unix-domain socket used by
	      uuidd.   By  default,  the  pathname  used   is	/var/lib/libu‐
	      uid/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 <tytso@mit.edu>.

AVAILABILITY
       uuidd  is  part	of libuuid from the e2fsprogs package and is available
       from http://e2fsprogs.sourceforge.net.

SEE ALSO
       libuuid(3), uuidgen(1)

E2fsprogs version 1.42.13	   May 2015			      UUIDD(8)

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