10.0
10.1
11.0
11.1
11.2
11.3
12.0
12.1
12.2
7.10
7.8
7.9
8.0
8.1
8.2
8.3
8.4
9.0
9.1
basic
bdubbs/svn
elogind
gimp3
kea
ken/TL2024
ken/inkscape-core-mods
ken/tuningfonts
lazarus
lxqt
nosym
perl-modules
plabs/newcss
plabs/python-mods
python3.11
qt5new
rahul/power-profiles-daemon
renodr/vulkan-addition
trunk
upgradedb
xry111/for-12.3
xry111/intltool
xry111/llvm18
xry111/soup3
xry111/spidermonkey128
xry111/test-20220226
xry111/xf86-video-removal
Last change
on this file since 59e61f7 was 2df2be4b, checked in by Bruce Dubbs <bdubbs@…>, 10 years ago |
Move section on /etc/shells to LFS
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@14835 af4574ff-66df-0310-9fd7-8a98e5e911e0
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[f8d632ac] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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[6732c094] | 2 | <!DOCTYPE part PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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[f8d632ac] | 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 | ]>
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| 7 |
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[0290a023] | 8 | <sect1 id="postlfs-config-shells" xreflabel="The /etc/shells File">
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[74ce7a3] | 9 | <?dbhtml filename="etcshells.html"?>
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| 10 |
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| 11 | <sect1info>
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| 12 | <othername>$LastChangedBy$</othername>
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| 13 | <date>$Date$</date>
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| 14 | </sect1info>
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| 15 |
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| 16 | <title>The /etc/shells File</title>
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| 17 |
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| 18 | <indexterm zone="postlfs-config-shells">
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| 19 | <primary sortas="e-etc-shells">/etc/shells</primary>
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| 20 | </indexterm>
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| 21 |
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[e0d33ef] | 22 | <para>The <filename>shells</filename> file contains a list of
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[74ce7a3] | 23 | login shells on the system. Applications use this file to determine
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| 24 | whether a shell is valid. For each shell a single line should be
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[853ae568] | 25 | present, consisting of the shell's path, relative to the root of the
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| 26 | directory structure (/).</para>
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[74ce7a3] | 27 |
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[d612b9f] | 28 | <para>For example, this file is consulted by <command>chsh</command>
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[e615d9b] | 29 | to determine whether an unprivileged user may change the login shell for her
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[74ce7a3] | 30 | own account. If the command name is not listed, the user will be denied of
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| 31 | change.</para>
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| 32 |
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| 33 | <para>It is a requirement for applications such as
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[e0d33ef] | 34 | <application>GDM</application> which does not populate the
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[853ae568] | 35 | face browser if it can't find <filename>/etc/shells</filename>, or
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[e0d33ef] | 36 | FTP daemons which traditionally disallow access to users
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[74ce7a3] | 37 | with shells not included in this file.</para>
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| 38 |
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| 39 | <screen role="root"><userinput>cat > /etc/shells << "EOF"
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| 40 | <literal># Begin /etc/shells
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[975d907a] | 41 |
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| 42 | /bin/sh
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| 43 | /bin/bash
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| 44 |
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[74ce7a3] | 45 | # End /etc/shells</literal>
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| 46 | EOF</userinput></screen>
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[975d907a] | 47 |
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| 48 | </sect1>
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