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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1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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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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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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8 | <sect1 id="postlfs-config-shells" xreflabel="The /etc/shells File">
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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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22 | <para>The <filename>shells</filename> file contains a list of
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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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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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27 |
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28 | <para>For example, this file is consulted by <command>chsh</command>
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29 | to determine whether an unprivileged user may change the login shell for her
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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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34 | <application>GDM</application> which does not populate the
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35 | face browser if it can't find <filename>/etc/shells</filename>, or
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36 | FTP daemons which traditionally disallow access to users
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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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41 |
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42 | /bin/sh
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43 | /bin/bash
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44 |
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45 | # End /etc/shells</literal>
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46 | EOF</userinput></screen>
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47 |
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48 | </sect1>
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