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shadow/man/login.defs.5.xml
Eric W. Biederman 23fd6cb1da login.defs.5: Document the new variables in login.defs 
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2013-08-05 10:08:45 -05:00

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<?xml version="1.0" encoding="UTF-8"?>
<!--
Copyright (c) 1991 - 1993, Julianne Frances Haugh
Copyright (c) 1991 - 1993, Chip Rosenthal
Copyright (c) 2007 - 2009, 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 CHFN_AUTH SYSTEM "login.defs.d/CHFN_AUTH.xml">
<!ENTITY CHFN_RESTRICT SYSTEM "login.defs.d/CHFN_RESTRICT.xml">
<!ENTITY CHSH_AUTH SYSTEM "login.defs.d/CHSH_AUTH.xml">
<!ENTITY CONSOLE SYSTEM "login.defs.d/CONSOLE.xml">
<!ENTITY CONSOLE_GROUPS SYSTEM "login.defs.d/CONSOLE_GROUPS.xml">
<!ENTITY CREATE_HOME SYSTEM "login.defs.d/CREATE_HOME.xml">
<!ENTITY DEFAULT_HOME SYSTEM "login.defs.d/DEFAULT_HOME.xml">
<!ENTITY ENCRYPT_METHOD SYSTEM "login.defs.d/ENCRYPT_METHOD.xml">
<!ENTITY ENV_HZ SYSTEM "login.defs.d/ENV_HZ.xml">
<!ENTITY ENV_PATH SYSTEM "login.defs.d/ENV_PATH.xml">
<!ENTITY ENV_SUPATH SYSTEM "login.defs.d/ENV_SUPATH.xml">
<!ENTITY ENV_TZ SYSTEM "login.defs.d/ENV_TZ.xml">
<!ENTITY ENVIRON_FILE SYSTEM "login.defs.d/ENVIRON_FILE.xml">
<!ENTITY ERASECHAR SYSTEM "login.defs.d/ERASECHAR.xml">
<!ENTITY FAIL_DELAY SYSTEM "login.defs.d/FAIL_DELAY.xml">
<!ENTITY FAILLOG_ENAB SYSTEM "login.defs.d/FAILLOG_ENAB.xml">
<!ENTITY FAKE_SHELL SYSTEM "login.defs.d/FAKE_SHELL.xml">
<!ENTITY FTMP_FILE SYSTEM "login.defs.d/FTMP_FILE.xml">
<!ENTITY GID_MAX SYSTEM "login.defs.d/GID_MAX.xml">
<!ENTITY HUSHLOGIN_FILE SYSTEM "login.defs.d/HUSHLOGIN_FILE.xml">
<!ENTITY ISSUE_FILE SYSTEM "login.defs.d/ISSUE_FILE.xml">
<!ENTITY KILLCHAR SYSTEM "login.defs.d/KILLCHAR.xml">
<!ENTITY LASTLOG_ENAB SYSTEM "login.defs.d/LASTLOG_ENAB.xml">
<!ENTITY LOG_OK_LOGINS SYSTEM "login.defs.d/LOG_OK_LOGINS.xml">
<!ENTITY LOG_UNKFAIL_ENAB SYSTEM "login.defs.d/LOG_UNKFAIL_ENAB.xml">
<!ENTITY LOGIN_RETRIES SYSTEM "login.defs.d/LOGIN_RETRIES.xml">
<!ENTITY LOGIN_STRING SYSTEM "login.defs.d/LOGIN_STRING.xml">
<!ENTITY LOGIN_TIMEOUT SYSTEM "login.defs.d/LOGIN_TIMEOUT.xml">
<!ENTITY MAIL_CHECK_ENAB SYSTEM "login.defs.d/MAIL_CHECK_ENAB.xml">
<!ENTITY MAIL_DIR SYSTEM "login.defs.d/MAIL_DIR.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 MOTD_FILE SYSTEM "login.defs.d/MOTD_FILE.xml">
<!ENTITY NOLOGINS_FILE SYSTEM "login.defs.d/NOLOGINS_FILE.xml">
<!ENTITY OBSCURE_CHECKS_ENAB SYSTEM "login.defs.d/OBSCURE_CHECKS_ENAB.xml">
<!ENTITY PASS_ALWAYS_WARN SYSTEM "login.defs.d/PASS_ALWAYS_WARN.xml">
<!ENTITY PASS_CHANGE_TRIES SYSTEM "login.defs.d/PASS_CHANGE_TRIES.xml">
<!ENTITY PASS_MAX_LEN SYSTEM "login.defs.d/PASS_MAX_LEN.xml">
<!ENTITY PASS_MAX_DAYS SYSTEM "login.defs.d/PASS_MAX_DAYS.xml">
<!ENTITY PASS_MIN_DAYS SYSTEM "login.defs.d/PASS_MIN_DAYS.xml">
<!ENTITY PASS_WARN_AGE SYSTEM "login.defs.d/PASS_WARN_AGE.xml">
<!ENTITY PORTTIME_CHECKS_ENAB SYSTEM "login.defs.d/PORTTIME_CHECKS_ENAB.xml">
<!ENTITY QUOTAS_ENAB SYSTEM "login.defs.d/QUOTAS_ENAB.xml">
<!ENTITY SHA_CRYPT_MIN_ROUNDS SYSTEM "login.defs.d/SHA_CRYPT_MIN_ROUNDS.xml">
<!ENTITY SULOG_FILE SYSTEM "login.defs.d/SULOG_FILE.xml">
<!ENTITY SU_NAME SYSTEM "login.defs.d/SU_NAME.xml">
<!ENTITY SU_WHEEL_ONLY SYSTEM "login.defs.d/SU_WHEEL_ONLY.xml">
<!ENTITY SUB_GID_COUNT SYSTEM "login.defs.d/SUB_GID_COUNT.xml">
<!ENTITY SUB_UID_COUNT SYSTEM "login.defs.d/SUB_UID_COUNT.xml">
<!ENTITY SYS_GID_MAX SYSTEM "login.defs.d/SYS_GID_MAX.xml">
<!ENTITY SYSLOG_SG_ENAB SYSTEM "login.defs.d/SYSLOG_SG_ENAB.xml">
<!ENTITY SYSLOG_SU_ENAB SYSTEM "login.defs.d/SYSLOG_SU_ENAB.xml">
<!ENTITY SYS_UID_MAX SYSTEM "login.defs.d/SYS_UID_MAX.xml">
<!ENTITY TCB_AUTH_GROUP SYSTEM "login.defs.d/TCB_AUTH_GROUP.xml">
<!ENTITY TCB_SYMLINKS SYSTEM "login.defs.d/TCB_SYMLINKS.xml">
<!ENTITY TTYGROUP SYSTEM "login.defs.d/TTYGROUP.xml">
<!ENTITY TTYTYPE_FILE SYSTEM "login.defs.d/TTYTYPE_FILE.xml">
<!ENTITY UID_MAX SYSTEM "login.defs.d/UID_MAX.xml">
<!ENTITY ULIMIT SYSTEM "login.defs.d/ULIMIT.xml">
<!ENTITY UMASK SYSTEM "login.defs.d/UMASK.xml">
<!ENTITY USERDEL_CMD SYSTEM "login.defs.d/USERDEL_CMD.xml">
<!ENTITY USERGROUPS_ENAB SYSTEM "login.defs.d/USERGROUPS_ENAB.xml">
<!ENTITY USE_TCB SYSTEM "login.defs.d/USE_TCB.xml">
<!-- SHADOW-CONFIG-HERE -->
]>
<refentry id='login.defs.5'>
<!-- $Id$ -->
<refentryinfo>
<author>
<firstname>Julianne Frances</firstname>
<surname>Haugh</surname>
<contrib>Creation, 1991</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>login.defs</refentrytitle>
<manvolnum>5</manvolnum>
<refmiscinfo class="sectdesc">File Formats and Conversions</refmiscinfo>
<refmiscinfo class="source">shadow-utils</refmiscinfo>
<refmiscinfo class="version">&SHADOW_UTILS_VERSION;</refmiscinfo>
</refmeta>
<refnamediv id='name'>
<refname>login.defs</refname>
<refpurpose>shadow password suite configuration</refpurpose>
</refnamediv>
<refsect1 id='description'>
<title>DESCRIPTION</title>
<para>
The <filename>/etc/login.defs</filename> file defines the
site-specific configuration for the shadow password suite. This file
is required. Absence of this file will not prevent system operation,
but will probably result in undesirable operation.
</para>
<para>
This file is a readable text file, each line of the file describing
one configuration parameter. The lines consist of a configuration name
and value, separated by whitespace. Blank lines and comment lines are
ignored. Comments are introduced with a "#" pound sign and the pound
sign must be the first non-white character of the line.
</para>
<para>
Parameter values may be of four types: strings, booleans, numbers, and
long numbers. A string is comprised of any printable characters. A
boolean should be either the value <replaceable>yes</replaceable> or
<replaceable>no</replaceable>. An undefined boolean
parameter or one with a value other than these will be given a
<replaceable>no</replaceable>
value. Numbers (both regular and long) may be either decimal values,
octal values (precede the value with <replaceable>0</replaceable>) or
hexadecimal values
(precede the value with <replaceable>0x</replaceable>).
The maximum value of the regular and
long numeric parameters is machine-dependent.
</para>
<para>The following configuration items are provided:</para>
<variablelist remap='IP'>
&CHFN_AUTH;
&CHFN_RESTRICT;
&CHSH_AUTH;
&CONSOLE;
&CONSOLE_GROUPS;
&CREATE_HOME;
&DEFAULT_HOME;
&ENCRYPT_METHOD;
&ENV_HZ;
&ENV_PATH;
&ENV_SUPATH;
&ENV_TZ;
&ENVIRON_FILE;
&ERASECHAR;
&FAIL_DELAY;
&FAILLOG_ENAB;
&FAKE_SHELL;
&FTMP_FILE;
&GID_MAX; <!-- documents also GID_MIN -->
&HUSHLOGIN_FILE;
&ISSUE_FILE;
&KILLCHAR;
&LASTLOG_ENAB;
&LOG_OK_LOGINS;
&LOG_UNKFAIL_ENAB;
&LOGIN_RETRIES;
&LOGIN_STRING;
&LOGIN_TIMEOUT;
&MAIL_CHECK_ENAB;
&MAIL_DIR;
&MAX_MEMBERS_PER_GROUP;
&MD5_CRYPT_ENAB;
&MOTD_FILE;
&NOLOGINS_FILE;
&OBSCURE_CHECKS_ENAB;
&PASS_ALWAYS_WARN;
&PASS_CHANGE_TRIES;
&PASS_MAX_DAYS;
&PASS_MIN_DAYS;
&PASS_WARN_AGE;
<para>
<option>PASS_MAX_DAYS</option>, <option>PASS_MIN_DAYS</option> and
<option>PASS_WARN_AGE</option> are only used at the
time of account creation. Any changes to these settings won't affect
existing accounts.
</para>
&PASS_MAX_LEN; <!-- documents also PASS_MIN_LEN -->
&PORTTIME_CHECKS_ENAB;
&QUOTAS_ENAB;
&SHA_CRYPT_MIN_ROUNDS; <!-- documents also SHA_CRYPT_MAX_ROUNDS -->
&SULOG_FILE;
&SU_NAME;
&SU_WHEEL_ONLY;
&SUB_GID_COUNT; <!-- documents also SUB_GID_MIN SUB_GID_MAX -->
&SUB_UID_COUNT; <!-- documents also SUB_UID_MIN SUB_UID_MAX -->
&SYS_GID_MAX; <!-- documents also SYS_GID_MIN -->
&SYS_UID_MAX; <!-- documents also SYS_UID_MIN -->
&SYSLOG_SG_ENAB;
&SYSLOG_SU_ENAB;
&TCB_AUTH_GROUP;
&TCB_SYMLINKS;
&TTYGROUP;
&TTYTYPE_FILE;
&UID_MAX; <!-- documents also UID_MIN -->
&ULIMIT;
&UMASK;
&USERDEL_CMD;
&USERGROUPS_ENAB;
&USE_TCB;
</variablelist>
</refsect1>
<refsect1 id='cross_references'>
<title>CROSS REFERENCES</title>
<para>
The following cross references show which programs in the shadow
password suite use which parameters.
</para>
<!-- .na -->
<variablelist remap='IP'>
<varlistentry condition="tcb">
<term>chage</term>
<listitem>
<para>USE_TCB</para>
</listitem>
</varlistentry>
<varlistentry>
<term>chfn</term>
<listitem>
<para>
<phrase condition="no_pam">CHFN_AUTH</phrase>
CHFN_RESTRICT
<phrase condition="no_pam">LOGIN_STRING</phrase>
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>chgpasswd</term>
<listitem>
<para>
ENCRYPT_METHOD MAX_MEMBERS_PER_GROUP MD5_CRYPT_ENAB
<phrase condition="sha_crypt">SHA_CRYPT_MAX_ROUNDS
SHA_CRYPT_MIN_ROUNDS</phrase>
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>chpasswd</term>
<listitem>
<para>
<phrase condition="no_pam">ENCRYPT_METHOD
MD5_CRYPT_ENAB </phrase>
<phrase condition="sha_crypt">SHA_CRYPT_MAX_ROUNDS
SHA_CRYPT_MIN_ROUNDS</phrase>
</para>
</listitem>
</varlistentry>
<varlistentry condition="no_pam">
<term>chsh</term>
<listitem>
<para>
CHSH_AUTH LOGIN_STRING
</para>
</listitem>
</varlistentry>
<!-- expiry: no variables (CONSOLE_GROUPS linked, but not used) -->
<!-- faillog: no variables -->
<varlistentry>
<term>gpasswd</term>
<listitem>
<para>
ENCRYPT_METHOD MAX_MEMBERS_PER_GROUP MD5_CRYPT_ENAB
<phrase condition="sha_crypt">SHA_CRYPT_MAX_ROUNDS
SHA_CRYPT_MIN_ROUNDS</phrase>
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>groupadd</term>
<listitem>
<para>
GID_MAX GID_MIN MAX_MEMBERS_PER_GROUP
SYS_GID_MAX SYS_GID_MIN
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>groupdel</term>
<listitem>
<para>MAX_MEMBERS_PER_GROUP</para>
</listitem>
</varlistentry>
<varlistentry>
<term>groupmems</term>
<listitem>
<para>MAX_MEMBERS_PER_GROUP</para>
</listitem>
</varlistentry>
<varlistentry>
<term>groupmod</term>
<listitem>
<para>MAX_MEMBERS_PER_GROUP</para>
</listitem>
</varlistentry>
<!-- groups: no variables -->
<varlistentry>
<term>grpck</term>
<listitem>
<para>MAX_MEMBERS_PER_GROUP</para>
</listitem>
</varlistentry>
<varlistentry>
<term>grpconv</term>
<listitem>
<para>MAX_MEMBERS_PER_GROUP</para>
</listitem>
</varlistentry>
<varlistentry>
<term>grpunconv</term>
<listitem>
<para>MAX_MEMBERS_PER_GROUP</para>
</listitem>
</varlistentry>
<!-- id: no variables -->
<!-- lastlog: no variables -->
<varlistentry>
<term>login</term>
<listitem>
<para>
<phrase condition="no_pam">CONSOLE</phrase>
CONSOLE_GROUPS DEFAULT_HOME
<phrase condition="no_pam">ENV_HZ ENV_PATH ENV_SUPATH
ENV_TZ ENVIRON_FILE</phrase>
ERASECHAR FAIL_DELAY
<phrase condition="no_pam">FAILLOG_ENAB</phrase>
FAKE_SHELL
<phrase condition="no_pam">FTMP_FILE</phrase>
HUSHLOGIN_FILE
<phrase condition="no_pam">ISSUE_FILE</phrase>
KILLCHAR
<phrase condition="no_pam">LASTLOG_ENAB</phrase>
LOGIN_RETRIES
<phrase condition="no_pam">LOGIN_STRING</phrase>
LOGIN_TIMEOUT LOG_OK_LOGINS LOG_UNKFAIL_ENAB
<phrase condition="no_pam">MAIL_CHECK_ENAB MAIL_DIR MAIL_FILE
MOTD_FILE NOLOGINS_FILE PORTTIME_CHECKS_ENAB
QUOTAS_ENAB</phrase>
TTYGROUP TTYPERM TTYTYPE_FILE
<phrase condition="no_pam">ULIMIT UMASK</phrase>
USERGROUPS_ENAB
</para>
</listitem>
</varlistentry>
<!-- logoutd: no variables -->
<varlistentry>
<term>newgrp / sg</term>
<listitem>
<para>
SYSLOG_SG_ENAB
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>newusers</term>
<listitem>
<para>
ENCRYPT_METHOD
GID_MAX GID_MIN
MAX_MEMBERS_PER_GROUP MD5_CRYPT_ENAB
PASS_MAX_DAYS PASS_MIN_DAYS PASS_WARN_AGE
<phrase condition="sha_crypt">SHA_CRYPT_MAX_ROUNDS
SHA_CRYPT_MIN_ROUNDS</phrase>
SUB_GID_COUNT SUB_GID_MAX SUB_GID_MIN
SUB_UID_COUNT SUB_UID_MAX SUB_UID_MIN
SYS_GID_MAX SYS_GID_MIN SYS_UID_MAX SYS_UID_MIN UID_MAX UID_MIN
UMASK
</para>
</listitem>
</varlistentry>
<!-- nologin: no variables -->
<varlistentry condition="no_pam">
<term>passwd</term>
<listitem>
<para>
ENCRYPT_METHOD MD5_CRYPT_ENAB OBSCURE_CHECKS_ENAB
PASS_ALWAYS_WARN PASS_CHANGE_TRIES PASS_MAX_LEN PASS_MIN_LEN
<phrase condition="sha_crypt">SHA_CRYPT_MAX_ROUNDS
SHA_CRYPT_MIN_ROUNDS</phrase>
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>pwck</term>
<listitem>
<para>
PASS_MAX_DAYS PASS_MIN_DAYS PASS_WARN_AGE
<phrase condition="tcb">TCB_AUTH_GROUP TCB_SYMLINKS USE_TCB</phrase>
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>pwconv</term>
<listitem>
<para>
PASS_MAX_DAYS PASS_MIN_DAYS PASS_WARN_AGE
<phrase condition="tcb">USE_TCB</phrase>
</para>
</listitem>
</varlistentry>
<varlistentry condition="tcb">
<term>pwunconv</term>
<listitem>
<para>
<phrase condition="tcb">USE_TCB</phrase>
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>su</term>
<listitem>
<para>
<phrase condition="no_pam">CONSOLE</phrase>
CONSOLE_GROUPS DEFAULT_HOME
<phrase condition="no_pam">ENV_HZ ENVIRON_FILE</phrase>
ENV_PATH ENV_SUPATH
<phrase condition="no_pam">ENV_TZ LOGIN_STRING MAIL_CHECK_ENAB
MAIL_DIR MAIL_FILE QUOTAS_ENAB</phrase>
SULOG_FILE SU_NAME
<phrase condition="no_pam">SU_WHEEL_ONLY</phrase>
SYSLOG_SU_ENAB
<phrase condition="no_pam">USERGROUPS_ENAB</phrase>
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>sulogin</term>
<listitem>
<para>
ENV_HZ
<phrase condition="no_pam">ENV_TZ</phrase>
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>useradd</term>
<listitem>
<para>
CREATE_HOME
GID_MAX GID_MIN
MAIL_DIR MAX_MEMBERS_PER_GROUP
PASS_MAX_DAYS PASS_MIN_DAYS PASS_WARN_AGE
SUB_GID_COUNT SUB_GID_MAX SUB_GID_MIN
SUB_UID_COUNT SUB_UID_MAX SUB_UID_MIN
SYS_GID_MAX SYS_GID_MIN SYS_UID_MAX SYS_UID_MIN UID_MAX UID_MIN
UMASK
<phrase condition="tcb">TCB_AUTH_GROUP TCB_SYMLINK USE_TCB</phrase>
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>userdel</term>
<listitem>
<para>
MAIL_DIR MAIL_FILE MAX_MEMBERS_PER_GROUP USERDEL_CMD
USERGROUPS_ENAB
<phrase condition="tcb">TCB_SYMLINKS USE_TCB</phrase>
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>usermod</term>
<listitem>
<para>
MAIL_DIR MAIL_FILE MAX_MEMBERS_PER_GROUP
<phrase condition="tcb">TCB_SYMLINKS USE_TCB</phrase>
</para>
</listitem>
</varlistentry>
<varlistentry condition="tcb">
<term>vipw</term>
<listitem>
<para>
<phrase condition="tcb">USE_TCB</phrase>
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 id='bugs' condition="pam">
<title>BUGS</title>
<para>
Much of the functionality that used to be provided by the shadow
password suite is now handled by PAM. Thus,
<filename>/etc/login.defs</filename> is no longer used by <citerefentry>
<refentrytitle>passwd</refentrytitle><manvolnum>1</manvolnum>
</citerefentry>, or less used by <citerefentry>
<refentrytitle>login</refentrytitle><manvolnum>1</manvolnum>
</citerefentry>, and <citerefentry>
<refentrytitle>su</refentrytitle><manvolnum>1</manvolnum>
</citerefentry>. Please refer to the corresponding PAM configuration
files instead.
</para>
</refsect1>
<refsect1 id='see_also'>
<title>SEE ALSO</title>
<para>
<citerefentry>
<refentrytitle>login</refentrytitle><manvolnum>1</manvolnum>
</citerefentry>,
<citerefentry>
<refentrytitle>passwd</refentrytitle><manvolnum>1</manvolnum>
</citerefentry>,
<citerefentry>
<refentrytitle>su</refentrytitle><manvolnum>1</manvolnum>
</citerefentry>,
<citerefentry>
<refentrytitle>passwd</refentrytitle><manvolnum>5</manvolnum>
</citerefentry>,
<citerefentry>
<refentrytitle>shadow</refentrytitle><manvolnum>5</manvolnum>
</citerefentry>,
<citerefentry>
<refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum>
</citerefentry>.
</para>
</refsect1>
</refentry>
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