[cf341b4] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.4/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 | <!ENTITY sudo-download-http "http://www.courtesan.com/sudo/dist/sudo-&sudo-version;.tar.gz">
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| 8 | <!ENTITY sudo-download-ftp " ">
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| 9 | <!ENTITY sudo-md5sum "b29893c06192df6230dd5f340f3badf5">
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| 10 | <!ENTITY sudo-size "576 KB">
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| 11 | <!ENTITY sudo-buildsize "3.6 MB">
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| 12 | <!ENTITY sudo-time "less than 0.1 SBU">
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| 13 | ]>
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| 14 |
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| 15 | <sect1 id="sudo" xreflabel="sudo-&sudo-version;">
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| 16 | <?dbhtml filename="sudo.html"?>
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| 17 |
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| 18 | <sect1info>
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| 19 | <othername>$LastChangedBy: $</othername>
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| 20 | <date>$Date: $</date>
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| 21 | </sect1info>
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| 22 |
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| 23 | <title>Sudo-&sudo-version;</title>
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| 24 |
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| 25 | <indexterm zone="sudo">
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| 26 | <primary sortas="a-sudo">sudo</primary>
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| 27 | </indexterm>
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| 28 |
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| 29 | <sect2 role="package">
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| 30 | <title>Introduction to Sudo</title>
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| 31 |
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| 32 | <para>The <application>sudo</application> package allows a system
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| 33 | administrator to give certain users (or groups of users) the ability to run
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| 34 | some (or all) commands as root or another user while logging the commands
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| 35 | and arguments.</para>
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| 36 |
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| 37 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 38 | <itemizedlist spacing="compact">
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| 39 | <listitem>
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| 40 | <para>Download (HTTP): <ulink url="&sudo-download-http;"/></para>
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| 41 | </listitem>
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| 42 | <listitem>
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| 43 | <para>Download (FTP): <ulink url="&sudo-download-ftp;"/></para>
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| 44 | </listitem>
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| 45 | <listitem>
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| 46 | <para>Download MD5 sum: &sudo-md5sum;</para>
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| 47 | </listitem>
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| 48 | <listitem>
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| 49 | <para>Download size: &sudo-size;</para>
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| 50 | </listitem>
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| 51 | <listitem>
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| 52 | <para>Estimated disk space required: &sudo-buildsize;</para>
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| 53 | </listitem>
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| 54 | <listitem>
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| 55 | <para>Estimated build time: &sudo-time;</para>
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| 56 | </listitem>
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| 57 | </itemizedlist>
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| 58 |
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| 59 | <!--
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| 60 | <bridgehead renderas="sect3">Additional Downloads</bridgehead>
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| 61 | <itemizedlist spacing='compact'>
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| 62 | <listitem>
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| 63 | <para>Required patch: <ulink
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| 64 | url="&patch-root;/sudo-&sudo-version;-xxxx-1.patch"/></para>
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| 65 | </listitem>
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| 66 | </itemizedlist>
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| 67 | <bridgehead renderas="sect3">Sudo Dependencies</bridgehead>
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| 68 |
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| 69 | <bridgehead renderas="sect4">Optional</bridgehead>
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| 70 |
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| 71 |
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| 72 | -->
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| 73 | </sect2>
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| 74 |
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| 75 | <sect2 role="installation">
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| 76 | <title>Installation of Sudo</title>
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| 77 |
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| 78 | <para>Install <application>sudo</application> by running
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| 79 | the following commands:</para>
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| 80 |
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[74169a7c] | 81 | <screen><userinput>sed -i -e 's/CDPATH",/&\n "SHELLOPTS",\n "PS4",/' env.c
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| 82 | ./configure --prefix=/usr --libexecdir=/usr/lib \
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| 83 | --enable-noargs-shell --with-ignore-dot --with-all-insults \
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| 84 | --enable-shell-sets-home &&
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[cf341b4] | 85 | make</userinput></screen>
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| 86 |
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| 87 | <para>Now, as the <systemitem class="username">root</systemitem> user:</para>
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| 88 |
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| 89 | <screen role="root"><userinput>make install</userinput></screen>
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| 90 |
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| 91 | </sect2>
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| 92 |
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| 93 | <sect2 role="commands">
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| 94 | <title>Command Explanations</title>
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| 95 |
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[74169a7c] | 96 | <para><command>sed -i -e 's/CDPATH",/&\n "SHELLOPTS",\n "PS4",/'
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| 97 | env.c</command>: This command adds two envronment variables to a list of
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| 98 | variables to be excluded from the target environment. It solves a
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| 99 | security problem.</para>
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| 100 |
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[cf341b4] | 101 | <para><option>--enable-noargs-shell</option>: This switch allows sudo to
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| 102 | run a shell if involked with no arguments.</para>
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| 103 |
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| 104 | <para><option>--with-ignore-dot</option>: This switch causes
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| 105 | <application>sudo</application> to ignore '.' in the PATH.</para>
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| 106 |
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| 107 | <para><option>--with-all-insults</option>: This switch includes all the
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| 108 | sudo insult sets.</para>
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| 109 |
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[74169a7c] | 110 | <para><option>--enable-shell-sets-home</option>: This switch sets HOME to
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| 111 | the target user in shell mode.</para>
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| 112 |
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[cf341b4] | 113 | <note><para>There are many options to <application>sudo</application>'s
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| 114 | configure command. Check the <command>configure --help</command> output
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| 115 | for a complete list.</para></note>
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| 116 |
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| 117 | </sect2>
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| 118 |
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| 119 | <sect2 role="configuration">
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| 120 | <title>Configuring Sudo</title>
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| 121 |
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| 122 | <sect3 id="sudo-config">
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| 123 | <title>Config File</title>
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| 124 |
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| 125 | <para><filename>/etc/sudoers</filename></para>
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| 126 |
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| 127 | <indexterm zone="sudo sudo-config">
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| 128 | <primary sortas="e-etc-sudoers">/etc/sudoers</primary>
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| 129 | </indexterm>
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| 130 |
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| 131 | </sect3>
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| 132 |
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| 133 | <sect3>
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| 134 | <title>Configuration Information</title>
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| 135 |
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| 136 | <para>The <filename>sudoers</filename> file can be quite complicated. It
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| 137 | is composed of two types of entries: aliases (basically variables) and
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| 138 | user specifications (which specify who may run what). The installation
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| 139 | installs a default configuration that has no privileges installed for any
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| 140 | user.</para>
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| 141 |
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| 142 | <para>One example usage is to allow the system administrator to execute
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| 143 | any program without typing a password each time root privileges are
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| 144 | needed. This can be configured as:</para>
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| 145 |
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| 146 | <screen># User alias specification
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| 147 | User_Alias ADMIN = YourLoginId
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| 148 |
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| 149 | # Allow people in group ADMIN to run all commands without a password
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| 150 | ADMIN ALL = NOPASSWD: ALL</screen>
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| 151 |
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| 152 | <para>For details, see <command>man sudoers</command>.</para>
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| 153 |
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| 154 | </sect3>
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| 155 |
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| 156 | </sect2>
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| 157 |
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| 158 | <sect2 role="content">
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| 159 | <title>Contents</title>
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| 160 |
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| 161 | <segmentedlist>
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| 162 | <segtitle>Installed Programs</segtitle>
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| 163 | <segtitle>Installed Library</segtitle>
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| 164 | <segtitle>Installed Directories</segtitle>
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| 165 |
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| 166 | <seglistitem>
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| 167 | <seg>sudo and sudoedit</seg>
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| 168 | <seg>sudo_noexec.so</seg>
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| 169 | <seg>None</seg>
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| 170 | </seglistitem>
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| 171 | </segmentedlist>
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| 172 |
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| 173 | <variablelist>
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| 174 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 175 | <?dbfo list-presentation="list"?>
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| 176 | <?dbhtml list-presentation="table"?>
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| 177 |
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| 178 | <varlistentry id="sudo_prog">
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| 179 | <term><command>sudo</command></term>
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| 180 | <listitem>
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| 181 | <para>executes a command as another user as permitted by
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| 182 | the <filename>/etc/sudoers</filename> confiuration file.
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| 183 | </para>
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| 184 | <indexterm zone="sudo sudo">
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| 185 | <primary sortas="b-sudo">sudo</primary>
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| 186 | </indexterm>
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| 187 | </listitem>
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| 188 | </varlistentry>
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| 189 |
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| 190 | <varlistentry id="sudoedit">
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| 191 | <term><command>sudoedit</command></term>
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| 192 | <listitem>
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| 193 | <para>is a hard link to <command>sudo</command> that implies
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| 194 | the -e option to invoke an editor as another user.</para>
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| 195 | <indexterm zone="sudo sudoedit">
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| 196 | <primary sortas="b-sudoedit">sudoedit</primary>
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| 197 | </indexterm>
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| 198 | </listitem>
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| 199 | </varlistentry>
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| 200 |
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| 201 | <varlistentry id="sudo_noexec">
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| 202 | <term><filename class='libraryfile'>sudo_noexec.so</filename></term>
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| 203 | <listitem>
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| 204 | <para>enables support for the "noexec" functionality which prevents
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| 205 | a dynamically-linked program being run by sudo from executing
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| 206 | another program (think shell escapes).</para>
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| 207 | <indexterm zone="sudo sudo_noexec">
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| 208 | <primary sortas="c-sudo_noexec">sudo_noexec.so</primary>
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| 209 | </indexterm>
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| 210 | </listitem>
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| 211 | </varlistentry>
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| 212 |
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| 213 | </variablelist>
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| 214 |
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| 215 | </sect2>
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| 216 |
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| 217 | </sect1>
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