[cf341b4] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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[6732c094] | 2 | <!DOCTYPE sect1 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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[cf341b4] | 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 |
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[0aeb696] | 7 | <!-- Inserted as a reminder to do this. The mention of a test suite
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| 8 | is usually right before the root user installation commands. Please
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| 9 | delete these 12 (including one blank) lines after you are done.-->
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| 10 |
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| 11 | <!-- Use one of the two mentions below about a test suite,
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| 12 | delete the line that is not applicable. Of course, if the
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| 13 | test suite uses syntax other than "make check", revise the
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| 14 | line to reflect the actual syntax to run the test suite -->
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| 15 |
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| 16 | <!-- <para>This package does not come with a test suite.</para> -->
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| 17 | <!-- <para>To test the results, issue: <command>make check</command>.</para> -->
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| 18 |
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[cf341b4] | 19 | <!ENTITY sudo-download-http "http://www.courtesan.com/sudo/dist/sudo-&sudo-version;.tar.gz">
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| 20 | <!ENTITY sudo-download-ftp " ">
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| 21 | <!ENTITY sudo-md5sum "b29893c06192df6230dd5f340f3badf5">
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| 22 | <!ENTITY sudo-size "576 KB">
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| 23 | <!ENTITY sudo-buildsize "3.6 MB">
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| 24 | <!ENTITY sudo-time "less than 0.1 SBU">
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| 25 | ]>
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| 26 |
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[fd680fb] | 27 | <sect1 id="sudo" xreflabel="sudo-&sudo-version;">
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[cf341b4] | 28 | <?dbhtml filename="sudo.html"?>
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| 29 |
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| 30 | <sect1info>
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[e19ad480] | 31 | <othername>$LastChangedBy$</othername>
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| 32 | <date>$Date$</date>
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[cf341b4] | 33 | </sect1info>
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| 34 |
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| 35 | <title>Sudo-&sudo-version;</title>
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| 36 |
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| 37 | <indexterm zone="sudo">
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| 38 | <primary sortas="a-sudo">sudo</primary>
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| 39 | </indexterm>
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| 40 |
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| 41 | <sect2 role="package">
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| 42 | <title>Introduction to Sudo</title>
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| 43 |
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| 44 | <para>The <application>sudo</application> package allows a system
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| 45 | administrator to give certain users (or groups of users) the ability to run
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[33d90fe] | 46 | some (or all) commands as
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| 47 | <systemitem class="username">root</systemitem> or another user while
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| 48 | logging the commands and arguments.</para>
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[cf341b4] | 49 |
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| 50 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 51 | <itemizedlist spacing="compact">
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| 52 | <listitem>
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| 53 | <para>Download (HTTP): <ulink url="&sudo-download-http;"/></para>
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| 54 | </listitem>
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| 55 | <listitem>
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| 56 | <para>Download (FTP): <ulink url="&sudo-download-ftp;"/></para>
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| 57 | </listitem>
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| 58 | <listitem>
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| 59 | <para>Download MD5 sum: &sudo-md5sum;</para>
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| 60 | </listitem>
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| 61 | <listitem>
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| 62 | <para>Download size: &sudo-size;</para>
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| 63 | </listitem>
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| 64 | <listitem>
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| 65 | <para>Estimated disk space required: &sudo-buildsize;</para>
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| 66 | </listitem>
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| 67 | <listitem>
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| 68 | <para>Estimated build time: &sudo-time;</para>
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| 69 | </listitem>
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| 70 | </itemizedlist>
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| 71 |
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| 72 | <bridgehead renderas="sect3">Additional Downloads</bridgehead>
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| 73 | <itemizedlist spacing='compact'>
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| 74 | <listitem>
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| 75 | <para>Required patch: <ulink
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[c8ebc86] | 76 | url="&patch-root;/sudo-&sudo-version;-envvar_fix-1.patch"/></para>
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[cf341b4] | 77 | </listitem>
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| 78 | </itemizedlist>
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[b35e86b2] | 79 | <!--
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[cf341b4] | 80 | <bridgehead renderas="sect3">Sudo Dependencies</bridgehead>
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| 81 |
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| 82 | <bridgehead renderas="sect4">Optional</bridgehead>
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| 83 | -->
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[b35e86b2] | 84 |
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[3597eb6] | 85 | <para condition="html" role="usernotes">User Notes:
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| 86 | <ulink url="&blfs-wiki;/sudo"/></para>
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| 87 |
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[cf341b4] | 88 | </sect2>
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| 89 |
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| 90 | <sect2 role="installation">
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| 91 | <title>Installation of Sudo</title>
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| 92 |
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| 93 | <para>Install <application>sudo</application> by running
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| 94 | the following commands:</para>
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| 95 |
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[d1c3223] | 96 | <screen><userinput>patch -Np1 -i ../sudo-&sudo-version;-envvar_fix-1.patch &&
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[b35e86b2] | 97 | ./configure --prefix=/usr --libexecdir=/usr/lib \
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[74169a7c] | 98 | --enable-noargs-shell --with-ignore-dot --with-all-insults \
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| 99 | --enable-shell-sets-home &&
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[cf341b4] | 100 | make</userinput></screen>
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| 101 |
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| 102 | <para>Now, as the <systemitem class="username">root</systemitem> user:</para>
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| 103 |
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| 104 | <screen role="root"><userinput>make install</userinput></screen>
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| 105 |
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| 106 | </sect2>
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| 107 |
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| 108 | <sect2 role="commands">
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| 109 | <title>Command Explanations</title>
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| 110 |
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[33d90fe] | 111 | <para><option>--enable-noargs-shell</option>: This switch allows
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| 112 | <application>sudo</application> to run a shell if invoked with no
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| 113 | arguments.</para>
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[cf341b4] | 114 |
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| 115 | <para><option>--with-ignore-dot</option>: This switch causes
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| 116 | <application>sudo</application> to ignore '.' in the PATH.</para>
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| 117 |
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| 118 | <para><option>--with-all-insults</option>: This switch includes all the
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[33d90fe] | 119 | <application>sudo</application> insult sets.</para>
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[cf341b4] | 120 |
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[74169a7c] | 121 | <para><option>--enable-shell-sets-home</option>: This switch sets HOME to
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| 122 | the target user in shell mode.</para>
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| 123 |
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[33d90fe] | 124 | <note>
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| 125 | <para>There are many options to <application>sudo</application>'s
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| 126 | <command>configure</command> command. Check the
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| 127 | <command>configure --help</command> output for a complete list.</para>
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| 128 | </note>
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[cf341b4] | 129 |
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| 130 | </sect2>
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| 131 |
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| 132 | <sect2 role="configuration">
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| 133 | <title>Configuring Sudo</title>
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| 134 |
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| 135 | <sect3 id="sudo-config">
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| 136 | <title>Config File</title>
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| 137 |
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| 138 | <para><filename>/etc/sudoers</filename></para>
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| 139 |
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| 140 | <indexterm zone="sudo sudo-config">
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| 141 | <primary sortas="e-etc-sudoers">/etc/sudoers</primary>
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| 142 | </indexterm>
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| 143 |
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| 144 | </sect3>
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| 145 |
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| 146 | <sect3>
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| 147 | <title>Configuration Information</title>
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| 148 |
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| 149 | <para>The <filename>sudoers</filename> file can be quite complicated. It
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| 150 | is composed of two types of entries: aliases (basically variables) and
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| 151 | user specifications (which specify who may run what). The installation
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| 152 | installs a default configuration that has no privileges installed for any
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| 153 | user.</para>
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| 154 |
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| 155 | <para>One example usage is to allow the system administrator to execute
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| 156 | any program without typing a password each time root privileges are
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| 157 | needed. This can be configured as:</para>
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[bccbdaea] | 158 |
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[cf341b4] | 159 | <screen># User alias specification
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| 160 | User_Alias ADMIN = YourLoginId
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| 161 |
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| 162 | # Allow people in group ADMIN to run all commands without a password
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| 163 | ADMIN ALL = NOPASSWD: ALL</screen>
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| 164 |
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| 165 | <para>For details, see <command>man sudoers</command>.</para>
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| 166 |
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[3c0f868f] | 167 | <note>
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| 168 | <para>The <application>Sudo</application> developers highly recommend
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| 169 | using the <command>visudo</command> program to edit the
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| 170 | <filename>sudoers</filename> file. This will provide basic sanity
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| 171 | checking like syntax parsing and file permission to avoid some possible
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| 172 | mistakes that could lead to a vulnerable configuration.</para>
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| 173 | </note>
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| 174 |
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[cf341b4] | 175 | </sect3>
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| 176 |
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| 177 | </sect2>
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| 178 |
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| 179 | <sect2 role="content">
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| 180 | <title>Contents</title>
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| 181 |
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| 182 | <segmentedlist>
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| 183 | <segtitle>Installed Programs</segtitle>
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| 184 | <segtitle>Installed Library</segtitle>
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| 185 | <segtitle>Installed Directories</segtitle>
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| 186 |
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| 187 | <seglistitem>
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[3c0f868f] | 188 | <seg>sudo, sudoedit, and visudo</seg>
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[cf341b4] | 189 | <seg>sudo_noexec.so</seg>
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| 190 | <seg>None</seg>
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| 191 | </seglistitem>
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| 192 | </segmentedlist>
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| 193 |
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| 194 | <variablelist>
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| 195 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 196 | <?dbfo list-presentation="list"?>
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| 197 | <?dbhtml list-presentation="table"?>
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| 198 |
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| 199 | <varlistentry id="sudo_prog">
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| 200 | <term><command>sudo</command></term>
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| 201 | <listitem>
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| 202 | <para>executes a command as another user as permitted by
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[33d90fe] | 203 | the <filename>/etc/sudoers</filename> configuration file.
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[cf341b4] | 204 | </para>
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| 205 | <indexterm zone="sudo sudo">
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| 206 | <primary sortas="b-sudo">sudo</primary>
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| 207 | </indexterm>
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| 208 | </listitem>
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| 209 | </varlistentry>
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| 210 |
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| 211 | <varlistentry id="sudoedit">
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| 212 | <term><command>sudoedit</command></term>
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| 213 | <listitem>
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| 214 | <para>is a hard link to <command>sudo</command> that implies
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[33d90fe] | 215 | the <option>-e</option> option to invoke an editor as another
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| 216 | user.</para>
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[cf341b4] | 217 | <indexterm zone="sudo sudoedit">
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| 218 | <primary sortas="b-sudoedit">sudoedit</primary>
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| 219 | </indexterm>
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| 220 | </listitem>
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| 221 | </varlistentry>
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| 222 |
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[3c0f868f] | 223 | <varlistentry id="visudo">
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| 224 | <term><command>visudo</command></term>
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| 225 | <listitem>
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| 226 | <para>allows for safer editing of the <filename>sudoers</filename>
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| 227 | file.</para>
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| 228 | <indexterm zone="sudo visudo">
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| 229 | <primary sortas="b-visudo">visudo</primary>
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| 230 | </indexterm>
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| 231 | </listitem>
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| 232 | </varlistentry>
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| 233 |
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| 234 |
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[cf341b4] | 235 | <varlistentry id="sudo_noexec">
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| 236 | <term><filename class='libraryfile'>sudo_noexec.so</filename></term>
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| 237 | <listitem>
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| 238 | <para>enables support for the "noexec" functionality which prevents
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| 239 | a dynamically-linked program being run by sudo from executing
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| 240 | another program (think shell escapes).</para>
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| 241 | <indexterm zone="sudo sudo_noexec">
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| 242 | <primary sortas="c-sudo_noexec">sudo_noexec.so</primary>
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| 243 | </indexterm>
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| 244 | </listitem>
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| 245 | </varlistentry>
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| 246 |
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| 247 | </variablelist>
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| 248 |
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| 249 | </sect2>
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| 250 |
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| 251 | </sect1>
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