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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE reference PUBLIC "-//OASIS//DTD DocBook V4.4//EN"
"http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd">
<reference>
<title>SSSD Manual pages</title>
<refentry>
    <refentryinfo>
        <productname>SSSD</productname>
        <orgname>The SSSD upstream - http://fedorahosted.org/sssd</orgname>
    </refentryinfo>

    <refmeta>
        <refentrytitle>pam_sss</refentrytitle>
        <manvolnum>8</manvolnum>
    </refmeta>

    <refnamediv id='name'>
        <refname>pam_sss</refname>
        <refpurpose>PAM module for SSSD</refpurpose>
    </refnamediv>

    <refsynopsisdiv id='synopsis'>
        <cmdsynopsis>
            <command>pam_sss.so</command>
            <arg choice='opt'>
                <replaceable>quiet</replaceable>
            </arg>
            <arg choice='opt'>
                <replaceable>forward_pass</replaceable>
            </arg>
            <arg choice='opt'>
                <replaceable>use_first_pass</replaceable>
            </arg>
            <arg choice='opt'>
                <replaceable>use_authtok</replaceable>
            </arg>
            <arg choice='opt'>
                <replaceable>retry=N</replaceable>
            </arg>
            <arg choice='opt'>
                <replaceable>ignore_unknown_user</replaceable>
            </arg>
            <arg choice='opt'>
                <replaceable>ignore_authinfo_unavail</replaceable>
            </arg>
            <arg choice='opt'>
                <replaceable>domains=X</replaceable>
            </arg>
        </cmdsynopsis>
    </refsynopsisdiv>

    <refsect1 id='description'>
        <title>DESCRIPTION</title>
        <para><command>pam_sss.so</command> is the PAM interface to the System
        Security Services daemon (SSSD). Errors and results are logged through
        <command>syslog(3)</command> with the LOG_AUTHPRIV facility.</para>
    </refsect1>

    <refsect1 id='options'>
        <title>OPTIONS</title>
        <variablelist remap='IP'>
            <varlistentry>
                <term>
                    <option>quiet</option>
                </term>
                <listitem>
                    <para>Suppress log messages for unknown users.</para>
                </listitem>
            </varlistentry>
            <varlistentry>
                <term>
                    <option>forward_pass</option>
                </term>
                <listitem>
                    <para>If <option>forward_pass</option> is set the entered
                    password is put on the stack for other PAM modules to use.
                    </para>
                </listitem>
            </varlistentry>
            <varlistentry>
                <term>
                    <option>use_first_pass</option>
                </term>
                <listitem>
                    <para>The argument use_first_pass forces the module to use
                    a previous stacked modules password and will never prompt
                    the user - if no password is available or the password is
                    not appropriate, the user will be denied access.</para>
                </listitem>
            </varlistentry>
            <varlistentry>
                <term>
                    <option>use_authtok</option>
                </term>
                <listitem>
                    <para>When password changing enforce the module to set the
                    new password to the one provided by a previously stacked
                    password module.</para>
                </listitem>
            </varlistentry>
            <varlistentry>
                <term>
                    <option>retry=N</option>
                </term>
                <listitem>
                    <para>If specified the user is asked another N times for a
                    password if authentication fails. Default is 0.</para>
                    <para>Please note that this option might not work as
                    expected if the application calling PAM handles the user
                    dialog on its own. A typical example is
                    <command>sshd</command> with
                    <option>PasswordAuthentication</option>.</para>
                </listitem>
            </varlistentry>
            <varlistentry>
                <term>
                    <option>ignore_unknown_user</option>
                </term>
                <listitem>
                    <para>If this option is specified and the user does not
                    exist, the PAM module will return PAM_IGNORE. This causes
                    the PAM framework to ignore this module.</para>
                </listitem>
            </varlistentry>
            <varlistentry>
                <term>
                    <option>ignore_authinfo_unavail</option>
                </term>
                <listitem>
                    <para>
                    Specifies  that  the  PAM module should return PAM_IGNORE
                    if it cannot contact the SSSD daemon. This causes
                    the PAM framework to ignore this module.</para>
                </listitem>
            </varlistentry>
            <varlistentry>
                <term>
                    <option>domains</option>
                </term>
                <listitem>
                    <para>
                        Allows the administrator to restrict the domains a
                        particular PAM service is allowed to authenticate
                        against. The format is a comma-separated list of
                        SSSD domain names, as specified in the sssd.conf file.
                    </para>
                    <para>
                        NOTE: Must be used in conjunction with the
                        <quote>pam_trusted_users</quote> and
                        <quote>pam_public_domains</quote> options.
                        Please see the
                        <citerefentry>
                            <refentrytitle>sssd.conf</refentrytitle>
                            <manvolnum>5</manvolnum>
                        </citerefentry> manual page for more information
                        on these two PAM responder options.
                    </para>
                </listitem>
            </varlistentry>
        </variablelist>
    </refsect1>

    <refsect1 id='module_types_provides'>
        <title>MODULE TYPES PROVIDED</title>
        <para>All module types (<option>account</option>, <option>auth</option>,
        <option>password</option> and <option>session</option>) are provided.
        </para>
    </refsect1>

    <refsect1 id='files'>
        <title>FILES</title>
        <para>If a password reset by root fails, because the corresponding SSSD
        provider does not support password resets, an individual message can be
        displayed. This message can e.g. contain instructions about how to reset
        a password.</para>

        <para>The message is read from the file
        <filename>pam_sss_pw_reset_message.LOC</filename> where LOC stands for a
        locale string returned by <citerefentry>
        <refentrytitle>setlocale</refentrytitle><manvolnum>3</manvolnum>
        </citerefentry>. If there is no matching file the content of
        <filename>pam_sss_pw_reset_message.txt</filename> is displayed. Root
        must be the owner of the files and only root may have read and write
        permissions while all other users must have only read
        permissions.</para>

        <para>These files are searched in the directory
        <filename>/etc/sssd/customize/DOMAIN_NAME/</filename>. If no matching
        file is present a generic message is displayed.</para>
    </refsect1>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="include/seealso.xml" />

</refentry>
</reference>