man/systemd-random-seed.service.xml

   1 <?xml version="1.0"?>
   2 <!--*-nxml-*-->
   3 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
   4   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
   5 <!-- SPDX-License-Identifier: LGPL-2.1+ -->
   6 <refentry id="systemd-random-seed.service" conditional='ENABLE_RANDOMSEED'>
   7
   8   <refentryinfo>
   9     <title>systemd-random-seed.service</title>
  10     <productname>systemd</productname>
  11   </refentryinfo>
  12
  13   <refmeta>
  14     <refentrytitle>systemd-random-seed.service</refentrytitle>
  15     <manvolnum>8</manvolnum>
  16   </refmeta>
  17
  18   <refnamediv>
  19     <refname>systemd-random-seed.service</refname>
  20     <refname>systemd-random-seed</refname>
  21     <refpurpose>Load and save the system random seed at boot and shutdown</refpurpose>
  22   </refnamediv>
  23
  24   <refsynopsisdiv>
  25     <para><filename>systemd-random-seed.service</filename></para>
  26     <para><filename>/usr/lib/systemd/random-seed</filename></para>
  27   </refsynopsisdiv>
  28
  29   <refsect1>
  30     <title>Description</title>
  31
  32     <para><filename>systemd-random-seed.service</filename> is a
  33     service that restores the random seed of the system at early boot
  34     and saves it at shutdown. See
  35     <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry>
  36     for details. Saving/restoring the random seed across boots
  37     increases the amount of available entropy early at boot. On disk
  38     the random seed is stored in
  39     <filename>/var/lib/systemd/random-seed</filename>.</para>
  40   </refsect1>
  41
  42   <refsect1>
  43     <title>See Also</title>
  44     <para>
  45       <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
  46       <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry>
  47     </para>
  48   </refsect1>
  49
  50 </refentry>