1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
<?xml version='1.0'?> <!--*-nxml-*-->
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
<!-- SPDX-License-Identifier: LGPL-2.1+ -->
<refentry id="pam_systemd_home" conditional='HAVE_PAM'>
<refentryinfo>
<title>pam_systemd_home</title>
<productname>systemd</productname>
</refentryinfo>
<refmeta>
<refentrytitle>pam_systemd_home</refentrytitle>
<manvolnum>8</manvolnum>
</refmeta>
<refnamediv>
<refname>pam_systemd_home</refname>
<refpurpose>Automatically mount home directories managed by <filename>systemd-homed.service</filename> on
login, and unmount them on logout</refpurpose>
</refnamediv>
<refsynopsisdiv>
<para><filename>pam_systemd_home.so</filename></para>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para><command>pam_systemd_home</command> ensures that home directories managed by
<citerefentry><refentrytitle>systemd-homed.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
are automatically activated (mounted) on user login, and are deactivated (unmounted) when the last
session of the user ends.</para>
</refsect1>
<refsect1>
<title>Options</title>
<para>The following options are understood:</para>
<variablelist class='pam-directives'>
<varlistentry>
<term><varname>suspend=</varname></term>
<listitem><para>Takes a boolean argument. If true, the home directory of the user will be suspended
automatically during system suspend; if false it will remain active. Automatic suspending of the home
directory improves security substantially as secret key material is automatically removed from memory
before the system is put to sleep and must be re-acquired (by user re-authentication) when coming
back from suspend. It is recommended to set this parameter for all PAM applications that have support
for automatically re-authenticating via PAM on system resume. If multiple sessions of the same user
are open in parallel the user's home directory will be left unsuspended on system suspend as soon as
at least one of the sessions does not set this parameter. Defaults to off.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>debug</varname><optional>=</optional></term>
<listitem><para>Takes an optional boolean argument. If yes or without the argument, the module will log
debugging information as it operates.</para></listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Module Types Provided</title>
<para>The module provides all four management operations: <option>auth</option>, <option>account</option>,
<option>session</option>, <option>password</option>.</para>
</refsect1>
<refsect1>
<title>Environment</title>
<para>The following environment variables are initialized by the module and available to the processes of the
user's session:</para>
<variablelist class='environment-variables'>
<varlistentry>
<term><varname>$SYSTEMD_HOME=1</varname></term>
<listitem><para>Indicates that the user's home directory is managed by <filename>systemd-homed.service</filename>.</para></listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Example</title>
<para>Here's an example PAM configuration fragment that permits users managed by
<filename>systemd-homed.service</filename> to log in:</para>
<programlisting>#%PAM-1.0
auth sufficient pam_unix.so
-auth sufficient pam_systemd_home.so
auth required pam_deny.so
account required pam_nologin.so
-account sufficient pam_systemd_home.so
account sufficient pam_unix.so
account required pam_permit.so
-password sufficient pam_systemd_home.so
password sufficient pam_unix.so sha512 shadow try_first_pass try_authtok
password required pam_deny.so
-session optional pam_keyinit.so revoke
-session optional pam_loginuid.so
-session optional pam_systemd_home.so
-session optional pam_systemd.so
session required pam_unix.so</programlisting>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-homed.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>homed.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>homectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>pam_systemd</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry project='man-pages'><refentrytitle>pam.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry project='man-pages'><refentrytitle>pam.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry project='man-pages'><refentrytitle>pam</refentrytitle><manvolnum>8</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>
|
