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diff --git a/man/grpck.8.xml b/man/grpck.8.xml new file mode 100644 index 0000000..77c4bd8 --- /dev/null +++ b/man/grpck.8.xml @@ -0,0 +1,314 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!-- + Copyright (c) 1992 - 1993, Julianne Frances Haugh + Copyright (c) 2007 - 2011, Nicolas François + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + 1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + 3. The name of the copyright holders or contributors may not be used to + endorse or promote products derived from this software without + specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook V4.5//EN" + "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [ +<!ENTITY MAX_MEMBERS_PER_GROUP SYSTEM "login.defs.d/MAX_MEMBERS_PER_GROUP.xml"> +<!-- SHADOW-CONFIG-HERE --> +]> +<refentry id='grpck.8'> + <!-- $Id$ --> + <refentryinfo> + <author> + <firstname>Julianne Frances</firstname> + <surname>Haugh</surname> + <contrib>Creation, 1992</contrib> + </author> + <author> + <firstname>Thomas</firstname> + <surname>Kłoczko</surname> + <email>kloczek@pld.org.pl</email> + <contrib>shadow-utils maintainer, 2000 - 2007</contrib> + </author> + <author> + <firstname>Nicolas</firstname> + <surname>François</surname> + <email>nicolas.francois@centraliens.net</email> + <contrib>shadow-utils maintainer, 2007 - now</contrib> + </author> + </refentryinfo> + <refmeta> + <refentrytitle>grpck</refentrytitle> + <manvolnum>8</manvolnum> + <refmiscinfo class="sectdesc">System Management Commands</refmiscinfo> + <refmiscinfo class="source">shadow-utils</refmiscinfo> + <refmiscinfo class="version">&SHADOW_UTILS_VERSION;</refmiscinfo> + </refmeta> + <refnamediv id='name'> + <refname>grpck</refname> + <refpurpose>verify integrity of group files</refpurpose> + </refnamediv> + + <refsynopsisdiv id='synopsis'> + <cmdsynopsis> + <command>grpck</command> + <arg choice='opt'>options</arg> + <arg choice='opt'> + <arg choice='plain'><replaceable>group</replaceable></arg> + <arg choice='opt' condition="gshadow"> + <arg choice='plain'><replaceable>shadow</replaceable></arg> + </arg> + </arg> + </cmdsynopsis> + </refsynopsisdiv> + + <refsect1 id='description'> + <title>DESCRIPTION</title> + <para> + The <command>grpck</command> command verifies the integrity of the + groups information. It checks that all entries in + <filename>/etc/group</filename> <phrase condition="gshadow">and + <filename>/etc/gshadow</filename></phrase> + have the proper format and contain valid data. + The user is prompted to delete entries that are + improperly formatted or which have other uncorrectable errors. + </para> + + <para>Checks are made to verify that each entry has:</para> + + <itemizedlist mark='bullet'> + <listitem> + <para>the correct number of fields</para> + </listitem> + <listitem> + <para>a unique and valid group name</para> + </listitem> + <listitem> + <para> + a valid group identifier + <phrase condition="gshadow"> (<filename>/etc/group</filename> + only)</phrase> + </para> + </listitem> + <listitem> + <para> + a valid list of members + <phrase condition="gshadow"> and administrators</phrase> + </para> + </listitem> + <listitem condition="gshadow"> + <para> + a corresponding entry in the <filename>/etc/gshadow</filename> + file (respectively <filename>/etc/group</filename> for the + <filename>gshadow</filename> checks) + </para> + </listitem> + </itemizedlist> + + <para> + The checks for correct number of fields and unique group name are + fatal. If an entry has the wrong number of fields, the user will be + prompted to delete the entire line. If the user does not answer + affirmatively, all further checks are bypassed. An entry with a + duplicated group name is prompted for deletion, but the remaining + checks will still be made. All other errors are warnings and the user + is encouraged to run the <command>groupmod</command> command to + correct the error. + </para> + + <para> + The commands which operate on the <filename>/etc/group</filename> + <phrase condition="no_gshadow">file</phrase><phrase + condition="gshadow">and <filename>/etc/gshadow</filename> files</phrase> + are not able to alter corrupted or duplicated entries. + <command>grpck</command> should be used in those circumstances to + remove the offending entries. + </para> + </refsect1> + + <refsect1 id='options'> + <title>OPTIONS</title> + <para> + The <option>-r</option> and <option>-s</option> options cannot be + combined. + </para> + <para> + The options which apply to the <command>grpck</command> command are: + </para> + <variablelist remap='IP'> + <varlistentry> + <term><option>-h</option>, <option>--help</option></term> + <listitem> + <para>Display help message and exit.</para> + </listitem> + </varlistentry> + <varlistentry> + <term><option>-r</option>, <option>--read-only</option></term> + <listitem> + <para> + Execute the <command>grpck</command> command in read-only mode. + This causes all questions regarding changes to be answered + <emphasis>no</emphasis> without user intervention. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term> + <option>-R</option>, <option>--root</option> <replaceable>CHROOT_DIR</replaceable> + </term> + <listitem> + <para> + Apply changes in the <replaceable>CHROOT_DIR</replaceable> + directory and use the configuration files from the + <replaceable>CHROOT_DIR</replaceable> directory. + </para> + </listitem> + </varlistentry> + <varlistentry> + <term><option>-s</option>, <option>--sort</option></term> + <listitem> + <para> + Sort entries in <filename>/etc/group</filename> + <phrase condition="gshadow">and + <filename>/etc/gshadow</filename></phrase> + by GID. + </para> + </listitem> + </varlistentry> + </variablelist> + <para> + By default, <command>grpck</command> operates on + <filename>/etc/group</filename> <phrase condition="gshadow">and + <filename>/etc/gshadow</filename></phrase>. + The user may select alternate files with the <emphasis + remap='I'>group</emphasis> + <phrase condition="no_gshadow">parameter.</phrase> + <phrase condition="gshadow">and <emphasis remap='I'>shadow</emphasis> + parameters.</phrase> + </para> + </refsect1> + + <refsect1 id='configuration'> + <title>CONFIGURATION</title> + <para> + The following configuration variables in + <filename>/etc/login.defs</filename> change the behavior of this + tool: + </para> + <variablelist> + &MAX_MEMBERS_PER_GROUP; + </variablelist> + </refsect1> + + <refsect1 id='files'> + <title>FILES</title> + <variablelist> + <varlistentry> + <term><filename>/etc/group</filename></term> + <listitem> + <para>Group account information.</para> + </listitem> + </varlistentry> + <varlistentry condition="gshadow"> + <term><filename>/etc/gshadow</filename></term> + <listitem> + <para>Secure group account information.</para> + </listitem> + </varlistentry> + <varlistentry> + <term><filename>/etc/passwd</filename></term> + <listitem> + <para>User account information.</para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id='exit_values'> + <title>EXIT VALUES</title> + <para> + The <command>grpck</command> command exits with the following values: + <variablelist> + <varlistentry> + <term><replaceable>0</replaceable></term> + <listitem> + <para>success</para> + </listitem> + </varlistentry> + <varlistentry> + <term><replaceable>1</replaceable></term> + <listitem> + <para>invalid command syntax</para> + </listitem> + </varlistentry> + <varlistentry> + <term><replaceable>2</replaceable></term> + <listitem> + <para>one or more bad group entries</para> + </listitem> + </varlistentry> + <varlistentry> + <term><replaceable>3</replaceable></term> + <listitem> + <para>can't open group files</para> + </listitem> + </varlistentry> + <varlistentry> + <term><replaceable>4</replaceable></term> + <listitem> + <para>can't lock group files</para> + </listitem> + </varlistentry> + <varlistentry> + <term><replaceable>5</replaceable></term> + <listitem> + <para>can't update group files</para> + </listitem> + </varlistentry> + </variablelist> + </para> + </refsect1> + + <refsect1 id='see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>group</refentrytitle><manvolnum>5</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>groupmod</refentrytitle><manvolnum>8</manvolnum> + </citerefentry>, + <phrase condition="gshadow"> + <citerefentry> + <refentrytitle>gshadow</refentrytitle><manvolnum>5</manvolnum>, + </citerefentry>, + </phrase> + <citerefentry> + <refentrytitle>passwd</refentrytitle><manvolnum>5</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>pwck</refentrytitle><manvolnum>8</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>shadow</refentrytitle><manvolnum>5</manvolnum> + </citerefentry>. + </para> + </refsect1> +</refentry> |