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1<?xml version="1.0"?>
2<!--*-nxml-*-->
3<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
4<!--
5 This file is part of systemd.
6
7 Copyright 2012 Lennart Poettering
8
9 systemd is free software; you can redistribute it and/or modify it
10 under the terms of the GNU Lesser General Public License as published by
11 the Free Software Foundation; either version 2.1 of the License, or
12 (at your option) any later version.
13
14 systemd is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 Lesser General Public License for more details.
18
19 You should have received a copy of the GNU Lesser General Public License
20 along with systemd; If not, see <http://www.gnu.org/licenses/>.
21-->
c35b956d 22<refentry id="systemd-random-seed.service" conditional='ENABLE_RANDOMSEED'>
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23
24 <refentryinfo>
c35b956d 25 <title>systemd-random-seed.service</title>
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26 <productname>systemd</productname>
27
28 <authorgroup>
29 <author>
30 <contrib>Developer</contrib>
31 <firstname>Lennart</firstname>
32 <surname>Poettering</surname>
33 <email>lennart@poettering.net</email>
34 </author>
35 </authorgroup>
36 </refentryinfo>
37
38 <refmeta>
c35b956d 39 <refentrytitle>systemd-random-seed.service</refentrytitle>
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40 <manvolnum>8</manvolnum>
41 </refmeta>
42
43 <refnamediv>
c35b956d 44 <refname>systemd-random-seed.service</refname>
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45 <refname>systemd-random-seed</refname>
46 <refpurpose>Load and save the system random seed at boot and shutdown</refpurpose>
47 </refnamediv>
48
49 <refsynopsisdiv>
c35b956d 50 <para><filename>systemd-random-seed.service</filename></para>
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51 <para><filename>/usr/lib/systemd/systemd-random-seed</filename></para>
52 </refsynopsisdiv>
53
54 <refsect1>
55 <title>Description</title>
56
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57 <para><filename>systemd-random-seed.service</filename>
58 is a service that restores the random seed of the
59 system at early-boot and saves it at shutdown. See
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60 <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry>
61 for details. Saving/restoring the random seed across
62 boots increases the amount of available entropy early
63 at boot. On disk the random seed is stored in
6c8c92fe 64 <filename>/var/lib/systemd/random-seed</filename>.</para>
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65 </refsect1>
66
67 <refsect1>
68 <title>See Also</title>
69 <para>
70 <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
71 <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry>
72 </para>
73 </refsect1>
74
75</refentry>