132 lines
5.1 KiB
XML
132 lines
5.1 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<!-- SPDX-License-Identifier: LGPL-2.1+ -->
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<refentry id="pam_systemd_home" conditional='HAVE_PAM'>
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<refentryinfo>
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<title>pam_systemd_home</title>
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<productname>systemd</productname>
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</refentryinfo>
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<refmeta>
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<refentrytitle>pam_systemd_home</refentrytitle>
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<manvolnum>8</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>pam_systemd_home</refname>
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<refpurpose>Automatically mount home directories managed by <filename>systemd-homed.service</filename> on
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login, and unmount them on logout</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<para><filename>pam_systemd_home.so</filename></para>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para><command>pam_systemd_home</command> ensures that home directories managed by
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<citerefentry><refentrytitle>systemd-homed.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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are automatically activated (mounted) on user login, and are deactivated (unmounted) when the last
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session of the user ends.</para>
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</refsect1>
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<refsect1>
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<title>Options</title>
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<para>The following options are understood:</para>
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<variablelist class='pam-directives'>
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<varlistentry>
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<term><varname>suspend=</varname></term>
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<listitem><para>Takes a boolean argument. If true, the home directory of the user will be suspended
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automatically during system suspend; if false it will remain active. Automatic suspending of the home
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directory improves security substantially as secret key material is automatically removed from memory
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before the system is put to sleep and must be re-acquired (through user re-authentication) when
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coming back from suspend. It is recommended to set this parameter for all PAM applications that have
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support for automatically re-authenticating via PAM on system resume. If multiple sessions of the
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same user are open in parallel the user's home directory will be left unsuspended on system suspend
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as long as at least one of the sessions does not set this parameter. Defaults to
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off.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>debug</varname><optional>=</optional></term>
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<listitem><para>Takes an optional boolean argument. If yes or without the argument, the module will log
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debugging information as it operates.</para></listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>Module Types Provided</title>
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<para>The module provides all four management operations: <option>auth</option>, <option>account</option>,
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<option>session</option>, <option>password</option>.</para>
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</refsect1>
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<refsect1>
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<title>Environment</title>
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<para>The following environment variables are initialized by the module and available to the processes of the
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user's session:</para>
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<variablelist class='environment-variables'>
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<varlistentry>
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<term><varname>$SYSTEMD_HOME=1</varname></term>
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<listitem><para>Indicates that the user's home directory is managed by <filename>systemd-homed.service</filename>.</para></listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>Example</title>
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<para>Here's an example PAM configuration fragment that permits users managed by
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<filename>systemd-homed.service</filename> to log in:</para>
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<programlisting>#%PAM-1.0
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auth sufficient pam_unix.so
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-auth sufficient pam_systemd_home.so
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auth required pam_deny.so
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account required pam_nologin.so
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-account sufficient pam_systemd_home.so
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account sufficient pam_unix.so
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account required pam_permit.so
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-password sufficient pam_systemd_home.so
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password sufficient pam_unix.so sha512 shadow try_first_pass try_authtok
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password required pam_deny.so
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-session optional pam_keyinit.so revoke
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-session optional pam_loginuid.so
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-session optional pam_systemd_home.so
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-session optional pam_systemd.so
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session required pam_unix.so</programlisting>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para>
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<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd-homed.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>homed.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>homectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>pam_systemd</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
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<citerefentry project='man-pages'><refentrytitle>pam.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry project='man-pages'><refentrytitle>pam.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
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<citerefentry project='man-pages'><refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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