source: postlfs/config/random.xml@ 0290a023

10.0 10.1 11.0 6.0 6.1 6.2 6.2.0 6.2.0-rc1 6.2.0-rc2 6.3 6.3-rc1 6.3-rc2 6.3-rc3 7.10 7.4 7.5 7.6 7.6-blfs 7.6-systemd 7.7 7.8 7.9 8.0 8.1 8.2 8.3 8.4 9.0 9.1 basic bdubbs/svn elogind gnome kde5-13430 kde5-14269 kde5-14686 ken/refactor-virt krejzi/svn lazarus nosym perl-modules qt5new systemd-11177 systemd-13485 trunk xry111/git-date xry111/git-date-for-trunk xry111/git-date-test
Last change on this file since 0290a023 was 0290a023, checked in by Randy McMurchy <randy@…>, 17 years ago

Indexed configuration files and bootscripts in the 'After LFS Configuration Issues' section

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@3283 af4574ff-66df-0310-9fd7-8a98e5e911e0

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1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
3 "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../../general.ent">
5 %general-entities;
6]>
7
8<sect1 id="postlfs-config-random" xreflabel="Random number generation">
9<sect1info>
10<othername>$LastChangedBy$</othername>
11<date>$Date$</date>
12</sect1info>
13<?dbhtml filename="random.html"?>
14<title>Random number generation</title>
15<indexterm zone="postlfs-config-random">
16<primary sortas="f-random-init">random</primary></indexterm>
17
18<para>The Linux kernel supplies a random number generator which is accessed
19through <filename class="devicefile">/dev/random</filename> and
20<filename class="devicefile">/dev/urandom</filename>. Programs that utilize
21the random and urandom devices, such as <application>OpenSSH</application>,
22will benefit from these instructions.</para>
23
24<para>When a Linux system starts up without much operator interaction, the
25entropy pool, data used to compute a random number, may be in a fairly
26predictable state. This creates the real possibility that the number generated
27at startup may always be the same. In order to counteract this effect,
28you should carry the entropy pool information across your shut-downs and
29start-ups.</para>
30
31<para>Install the <filename>/etc/rc.d/init.d/random</filename>
32init script included with the
33<xref linkend="intro-important-bootscripts"/> package.</para>
34
35<screen><userinput><command>make install-random</command></userinput></screen>
36
37</sect1>
38
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