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f93cf255d4
Closes #238 Update all files to list SPDX license shortname. Most files are BSD 3 clause license. The exceptions are: serge@sl ~/src/shadow$ git grep SPDX-License | grep -v BSD-3-Clause contrib/atudel:# SPDX-License-Identifier: BSD-4-Clause lib/tcbfuncs.c: * SPDX-License-Identifier: 0BSD libmisc/salt.c: * SPDX-License-Identifier: Unlicense src/login_nopam.c: * SPDX-License-Identifier: Unlicense src/nologin.c: * SPDX-License-Identifier: BSD-2-Clause src/vipw.c: * SPDX-License-Identifier: GPL-2.0-or-later Signed-off-by: Serge Hallyn <serge@hallyn.com>
170 lines
4.9 KiB
XML
170 lines
4.9 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!--
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SPDX-FileCopyrightText: 2005 - 2008, Nicolas François
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SPDX-License-Identifier: BSD-3-Clause
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-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!-- SHADOW-CONFIG-HERE -->
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]>
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<refentry id='gshadow.5'>
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<!-- $Id$ -->
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<refentryinfo>
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<author>
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<firstname>Nicolas</firstname>
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<surname>François</surname>
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<email>nicolas.francois@centraliens.net</email>
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<contrib>Creation, 2005</contrib>
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<contrib>shadow-utils maintainer, 2007 - now</contrib>
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</author>
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</refentryinfo>
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<refmeta>
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<refentrytitle>gshadow</refentrytitle>
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<manvolnum>5</manvolnum>
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<refmiscinfo class="sectdesc">File Formats and Configuration Files</refmiscinfo>
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<refmiscinfo class="source">shadow-utils</refmiscinfo>
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<refmiscinfo class="version">&SHADOW_UTILS_VERSION;</refmiscinfo>
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</refmeta>
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<refnamediv id='name'>
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<refname>gshadow</refname>
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<refpurpose>shadowed group file</refpurpose>
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</refnamediv>
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<refsect1 id='description'>
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<title>DESCRIPTION</title>
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<para>
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<filename>/etc/gshadow</filename> contains the shadowed information
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for group accounts.
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</para>
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<para>
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This file must not be readable by regular users if password security
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is to be maintained.
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</para>
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<para>
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Each line of this file contains the following colon-separated
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fields:
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</para>
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<variablelist>
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<varlistentry>
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<term><emphasis role="bold">group name</emphasis></term>
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<listitem>
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<para>
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It must be a valid group name, which exist on the system.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">encrypted password</emphasis></term>
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<listitem>
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<para>
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Refer to <citerefentry><refentrytitle>crypt</refentrytitle>
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<manvolnum>3</manvolnum></citerefentry> for details on how
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this string is interpreted.
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</para>
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<para>
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If the password field contains some string that is not a valid
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result of <citerefentry><refentrytitle>crypt</refentrytitle>
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<manvolnum>3</manvolnum></citerefentry>, for instance ! or *,
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users will not be able to use a unix password to access the
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group (but group members do not need the password).
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</para>
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<para>
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The password is used when a user who is not a member of the
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group wants to gain the permissions of this group (see
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<citerefentry><refentrytitle>newgrp</refentrytitle>
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<manvolnum>1</manvolnum></citerefentry>).
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</para>
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<para>
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This field may be empty, in which case only the group members
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can gain the group permissions.
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</para>
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<para>
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A password field which starts with an exclamation mark means
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that the password is locked. The remaining characters on the
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line represent the password field before the password was
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locked.
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</para>
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<para>
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This password supersedes any password specified in
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<filename>/etc/group</filename>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">administrators</emphasis></term>
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<listitem>
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<para>
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It must be a comma-separated list of user names.
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</para>
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<para>
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Administrators can change the password or the members of the
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group.
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</para>
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<para>
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Administrators also have the same permissions as the members
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(see below).
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">members</emphasis></term>
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<listitem>
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<para>
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It must be a comma-separated list of user names.
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</para>
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<para>
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Members can access the group without being prompted for a
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password.
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</para>
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<para>
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You should use the same list of users as in
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<filename>/etc/group</filename>.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1 id='files'>
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<title>FILES</title>
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<variablelist>
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<varlistentry>
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<term><filename>/etc/group</filename></term>
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<listitem>
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<para>Group account information.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><filename>/etc/gshadow</filename></term>
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<listitem>
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<para>Secure group account information.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1 id='see_also'>
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<title>SEE ALSO</title>
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<para>
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<citerefentry>
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<refentrytitle>gpasswd</refentrytitle><manvolnum>5</manvolnum>
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</citerefentry>,
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<citerefentry>
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<refentrytitle>group</refentrytitle><manvolnum>5</manvolnum>
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</citerefentry>,
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<citerefentry>
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<refentrytitle>grpck</refentrytitle><manvolnum>8</manvolnum>
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</citerefentry>,
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<citerefentry>
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<refentrytitle>grpconv</refentrytitle><manvolnum>8</manvolnum>
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</citerefentry>,
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<citerefentry>
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<refentrytitle>newgrp</refentrytitle><manvolnum>1</manvolnum>
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</citerefentry>.
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</para>
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</refsect1>
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</refentry>
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