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Diffstat (limited to 'man/gpasswd.1.xml')
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diff --git a/man/gpasswd.1.xml b/man/gpasswd.1.xml new file mode 100644 index 0000000..ebd1b41 --- /dev/null +++ b/man/gpasswd.1.xml @@ -0,0 +1,322 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!-- + Copyright (c) 1996 , Rafal Maszkowski + 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 ENCRYPT_METHOD SYSTEM "login.defs.d/ENCRYPT_METHOD.xml"> +<!ENTITY MAX_MEMBERS_PER_GROUP SYSTEM "login.defs.d/MAX_MEMBERS_PER_GROUP.xml"> +<!ENTITY MD5_CRYPT_ENAB SYSTEM "login.defs.d/MD5_CRYPT_ENAB.xml"> +<!ENTITY SHA_CRYPT_MIN_ROUNDS SYSTEM "login.defs.d/SHA_CRYPT_MIN_ROUNDS.xml"> +<!-- SHADOW-CONFIG-HERE --> +]> + +<refentry id='gpasswd.1'> + <!-- $Id$ --> + <refentryinfo> + <author> + <firstname>Rafal</firstname> + <surname>Maszkowski</surname> + <contrib>Creation, 1996</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>gpasswd</refentrytitle> + <manvolnum>1</manvolnum> + <refmiscinfo class="sectdesc">User Commands</refmiscinfo> + <refmiscinfo class="source">shadow-utils</refmiscinfo> + <refmiscinfo class="version">&SHADOW_UTILS_VERSION;</refmiscinfo> + </refmeta> + <refnamediv id='name'> + <refname>gpasswd</refname> + <refpurpose> + <phrase condition="no_gshadow"> + administer <filename>/etc/group</filename> + </phrase> + <phrase condition="gshadow"> + administer <filename>/etc/group</filename> and + <filename>/etc/gshadow</filename> + </phrase> + </refpurpose> + </refnamediv> + <!-- body begins here --> + <refsynopsisdiv id='synopsis'> + <cmdsynopsis> + <command>gpasswd</command> + <arg choice='opt'> + <replaceable>option</replaceable> + </arg> + <arg choice='plain'> + <replaceable>group</replaceable> + </arg> + </cmdsynopsis> + </refsynopsisdiv> + + <refsect1 id='description'> + <title>DESCRIPTION</title> + <para> + The <command>gpasswd</command> command is used to administer + <filename>/etc/group</filename><phrase condition="gshadow">, + and <filename>/etc/gshadow</filename></phrase>. + Every group can have + <phrase condition="gshadow">administrators,</phrase> + members and a password. + </para> + <para condition="gshadow"> + System administrators can use the <option>-A</option> option to define + group administrator(s) and the <option>-M</option> option to define + members. They have all rights of group administrators and members. + </para> + <para> + <command>gpasswd</command> called by + <phrase condition="gshadow">a group administrator</phrase> + <phrase condition="no_gshadow">a system administrator</phrase> + with a group name only prompts for the new password of the + <replaceable>group</replaceable>. + </para> + <para> + If a password is set the members can still use <citerefentry> + <refentrytitle>newgrp</refentrytitle><manvolnum>1</manvolnum> + </citerefentry> without a password, and non-members must supply the + password. + </para> + + <refsect2 id='notes_about_group_passwords'> + <title>Notes about group passwords</title> + <para> + Group passwords are an inherent security problem since more than one + person is permitted to know the password. However, groups are a + useful tool for permitting co-operation between different users. + </para> + </refsect2> + + </refsect1> + + <refsect1 id='options'> + <title>OPTIONS</title> + <para condition="gshadow"> + Except for the <option>-A</option> and <option>-M</option> options, + the options cannot be combined. + </para> + <para condition="no_gshadow"> + The options cannot be combined. + </para> + <para> + The options which apply to the <command>gpasswd</command> command are: + </para> + <variablelist remap='IP'> + <varlistentry> + <term> + <option>-a</option>, <option>--add</option> <replaceable>user</replaceable> + </term> + <listitem> + <para> + Add the <replaceable>user</replaceable> to the named + <replaceable>group</replaceable>. + </para> + </listitem> + </varlistentry> + </variablelist> + <variablelist remap='IP'> + <varlistentry> + <term> + <option>-d</option>, <option>--delete</option> <replaceable>user</replaceable> + </term> + <listitem> + <para> + Remove the <replaceable>user</replaceable> from the named + <replaceable>group</replaceable>. + </para> + </listitem> + </varlistentry> + </variablelist> + <variablelist remap='IP'> + <varlistentry> + <term><option>-h</option>, <option>--help</option></term> + <listitem> + <para>Display help message and exit.</para> + </listitem> + </varlistentry> + </variablelist> + <variablelist remap='IP'> + <varlistentry> + <term> + <option>-Q</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> + </variablelist> + <variablelist remap='IP'> + <varlistentry> + <term> + <option>-r</option>, <option>--remove-password</option> + </term> + <listitem> + <para> + Remove the password from the named <replaceable>group</replaceable>. + The group password will be empty. + Only group members will be allowed to use + <command>newgrp</command> to join the named + <replaceable>group</replaceable>. + </para> + </listitem> + </varlistentry> + </variablelist> + <variablelist remap='IP'> + <varlistentry> + <term> + <option>-R</option>, <option>--restrict</option> + </term> + <listitem> + <para> + Restrict the access to the named <replaceable>group</replaceable>. + The group password is set to "!". + Only group members with a password will be allowed to use + <command>newgrp</command> to join the named + <replaceable>group</replaceable>. + </para> + </listitem> + </varlistentry> + </variablelist> + <variablelist remap='IP' condition="gshadow"> + <varlistentry> + <term> + <option>-A</option>, <option>--administrators</option> <replaceable>user</replaceable>,... + </term> + <listitem> + <para> + Set the list of administrative users. + </para> + </listitem> + </varlistentry> + </variablelist> + <variablelist remap='IP'> + <varlistentry> + <term> + <option>-M</option>, <option>--members</option> <replaceable>user</replaceable>,... + </term> + <listitem> + <para> + Set the list of group members. + </para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1 id='caveats'> + <title>CAVEATS</title> + <para> + This tool only operates on the <filename>/etc/group</filename> + <phrase condition="gshadow"> and <filename>/etc/gshadow</filename> + files.</phrase> + <phrase condition="no_gshadow">file.</phrase> + Thus you cannot change any NIS or LDAP group. This must be performed + on the corresponding server. + </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> + &ENCRYPT_METHOD; + &MAX_MEMBERS_PER_GROUP; + &MD5_CRYPT_ENAB; + &SHA_CRYPT_MIN_ROUNDS; <!--This also document SHA_CRYPT_MAX_ROUNDS--> + </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> + </variablelist> + </refsect1> + + <refsect1 id='see_also'> + <title>SEE ALSO</title> + <para> + <citerefentry> + <refentrytitle>newgrp</refentrytitle><manvolnum>1</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>groupadd</refentrytitle><manvolnum>8</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>groupdel</refentrytitle><manvolnum>8</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>groupmod</refentrytitle><manvolnum>8</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>grpck</refentrytitle><manvolnum>8</manvolnum> + </citerefentry>, + <citerefentry> + <refentrytitle>group</refentrytitle><manvolnum>5</manvolnum> + </citerefentry><phrase condition="gshadow">, + <citerefentry> + <refentrytitle>gshadow</refentrytitle><manvolnum>5</manvolnum> + </citerefentry></phrase>. + </para> + </refsect1> +</refentry> |