1
<?xml version="1.0" encoding="UTF-8"?>
1
<?xml version='1.0' encoding='UTF-8'?>
2
2
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3
3
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4
<!ENTITY VERSION "1.0">
4
5
<!ENTITY CONFNAME "mandos-clients.conf">
5
6
<!ENTITY CONFPATH "<filename>/etc/mandos/clients.conf</filename>">
6
<!ENTITY TIMESTAMP "2018-02-08">
7
<!ENTITY % common SYSTEM "common.ent">
7
<!ENTITY TIMESTAMP "2008-08-29">
11
<refentry xmlns:xi="http://www.w3.org/2001/XInclude">
13
12
<title>Mandos Manual</title>
14
13
<!-- NWalsh’s docbook scripts use this to generate the footer: -->
15
14
<productname>Mandos</productname>
16
<productnumber>&version;</productnumber>
15
<productnumber>&VERSION;</productnumber>
17
16
<date>&TIMESTAMP;</date>
20
19
<firstname>Björn</firstname>
21
20
<surname>Påhlsson</surname>
23
<email>belorn@recompile.se</email>
22
<email>belorn@fukt.bsnet.se</email>
27
26
<firstname>Teddy</firstname>
28
27
<surname>Hogeborn</surname>
30
<email>teddy@recompile.se</email>
29
<email>teddy@fukt.bsnet.se</email>
46
35
<holder>Teddy Hogeborn</holder>
47
36
<holder>Björn Påhlsson</holder>
49
<xi:include href="legalnotice.xml"/>
40
This manual page is free software: you can redistribute it
41
and/or modify it under the terms of the GNU General Public
42
License as published by the Free Software Foundation,
43
either version 3 of the License, or (at your option) any
48
This manual page is distributed in the hope that it will
49
be useful, but WITHOUT ANY WARRANTY; without even the
50
implied warranty of MERCHANTABILITY or FITNESS FOR A
51
PARTICULAR PURPOSE. See the GNU General Public License
56
You should have received a copy of the GNU General Public
57
License along with this program; If not, see
58
<ulink url="http://www.gnu.org/licenses/"/>.
53
64
<refentrytitle>&CONFNAME;</refentrytitle>
54
65
<manvolnum>5</manvolnum>
72
85
><refentrytitle>mandos</refentrytitle>
73
86
<manvolnum>8</manvolnum></citerefentry>, read by it at startup.
74
87
The file needs to list all clients that should be able to use
75
the service. The settings in this file can be overridden by
76
runtime changes to the server, which it saves across restarts.
77
(See the section called <quote>PERSISTENT STATE</quote> in
78
<citerefentry><refentrytitle>mandos</refentrytitle><manvolnum
79
>8</manvolnum></citerefentry>.) However, any <emphasis
80
>changes</emphasis> to this file (including adding and removing
81
clients) will, at startup, override changes done during runtime.
88
the service. All clients listed will be regarded as valid, even
89
if a client was declared invalid in a previous run of the
84
93
The format starts with a <literal>[<replaceable>section
108
117
start time expansion, see <xref linkend="expansion"/>.
111
Unknown options are ignored. The used options are as follows:
120
Uknown options are ignored. The used options are as follows:
117
<term><option>approval_delay<literal> = </literal><replaceable
118
>TIME</replaceable></option></term>
121
This option is <emphasis>optional</emphasis>.
124
How long to wait for external approval before resorting to
125
use the <option>approved_by_default</option> value. The
126
default is <quote>PT0S</quote>, i.e. not to wait.
129
The format of <replaceable>TIME</replaceable> is the same
130
as for <varname>timeout</varname> below.
136
<term><option>approval_duration<literal> = </literal
137
><replaceable>TIME</replaceable></option></term>
140
This option is <emphasis>optional</emphasis>.
143
How long an external approval lasts. The default is 1
147
The format of <replaceable>TIME</replaceable> is the same
148
as for <varname>timeout</varname> below.
154
<term><option>approved_by_default<literal> = </literal
155
>{ <literal >1</literal> | <literal>yes</literal> | <literal
156
>true</literal> | <literal>on</literal> | <literal
157
>0</literal> | <literal>no</literal> | <literal
158
>false</literal> | <literal>off</literal> }</option></term>
161
Whether to approve a client by default after
162
the <option>approval_delay</option>. The default
163
is <quote>True</quote>.
169
<term><option>checker<literal> = </literal><replaceable
170
>COMMAND</replaceable></option></term>
173
This option is <emphasis>optional</emphasis>.
176
This option overrides the default shell command that the
177
server will use to check if the client is still up. Any
178
output of the command will be ignored, only the exit code
179
is checked: If the exit code of the command is zero, the
180
client is considered up. The command will be run using
181
<quote><command><filename>/bin/sh</filename>
126
<term><literal><varname>timeout</varname></literal></term>
128
<synopsis><literal>timeout = </literal><replaceable
132
The timeout is how long the server will wait for a
133
successful checker run until a client is considered
134
invalid - that is, ineligible to get the data this server
135
holds. By default Mandos will use 1 hour.
138
The <replaceable>TIME</replaceable> is specified as a
139
space-separated number of values, each of which is a
140
number and a one-character suffix. The suffix must be one
141
of <quote>d</quote>, <quote>s</quote>, <quote>m</quote>,
142
<quote>h</quote>, and <quote>w</quote> for days, seconds,
143
minutes, hours, and weeks, respectively. The values are
144
added together to give the total time value, so all of
145
<quote><literal>330s</literal></quote>,
146
<quote><literal>110s 110s 110s</literal></quote>, and
147
<quote><literal>5m 30s</literal></quote> will give a value
148
of five minutes and thirty seconds.
154
<term><literal><varname>interval</varname></literal></term>
156
<synopsis><literal>interval = </literal><replaceable
160
How often to run the checker to confirm that a client is
161
still up. <emphasis>Note:</emphasis> a new checker will
162
not be started if an old one is still running. The server
163
will wait for a checker to complete until the above
164
<quote><varname>timeout</varname></quote> occurs, at which
165
time the client will be marked invalid, and any running
166
checker killed. The default interval is 5 minutes.
169
The format of <replaceable>TIME</replaceable> is the same
170
as for <varname>timeout</varname> above.
176
<term><literal>checker</literal></term>
178
<synopsis><literal>checker = </literal><replaceable
179
>COMMAND</replaceable>
182
This option allows you to override the default shell
183
command that the server will use to check if the client is
184
still up. Any output of the command will be ignored, only
185
the exit code is checked: If the exit code of the command
186
is zero, the client is considered up. The command will be
187
run using <quote><command><filename>/bin/sh</filename>
182
188
<option>-c</option></command></quote>, so
183
189
<varname>PATH</varname> will be searched. The default
184
190
value for the checker command is <quote><literal
185
191
><command>fping</command> <option>-q</option> <option
186
>--</option> %%(host)s</literal></quote>. Note that
187
<command>mandos-keygen</command>, when generating output
188
to be inserted into this file, normally looks for an SSH
189
server on the Mandos client, and, if it find one, outputs
190
a <option>checker</option> option to check for the
191
client’s key fingerprint – this is more secure against
192
>--</option> %(host)s</literal></quote>.
195
195
In addition to normal start time expansion, this option
203
<term><option>extended_timeout<literal> = </literal><replaceable
204
>TIME</replaceable></option></term>
207
This option is <emphasis>optional</emphasis>.
210
Extended timeout is an added timeout that is given once
211
after a password has been sent successfully to a client.
212
The timeout is by default longer than the normal timeout,
213
and is used for handling the extra long downtime while a
214
machine is booting up. Time to take into consideration
215
when changing this value is file system checks and quota
216
checks. The default value is 15 minutes.
219
The format of <replaceable>TIME</replaceable> is the same
220
as for <varname>timeout</varname> below.
226
<term><option>fingerprint<literal> = </literal
227
><replaceable>HEXSTRING</replaceable></option></term>
230
This option is <emphasis>required</emphasis>.
203
<term><literal>fingerprint</literal></term>
205
<synopsis><literal>fingerprint = </literal><replaceable
206
>HEXSTRING</replaceable>
233
209
This option sets the OpenPGP fingerprint that identifies
234
210
the public key that clients authenticate themselves with
235
through TLS. The string needs to be in hexadecimal form,
211
through TLS. The string needs to be in hexidecimal form,
236
212
but spaces or upper/lower case are not significant.
242
<term><option><literal>host = </literal><replaceable
243
>STRING</replaceable></option></term>
246
This option is <emphasis>optional</emphasis>, but highly
247
<emphasis>recommended</emphasis> unless the
248
<option>checker</option> option is modified to a
249
non-standard value without <quote>%%(host)s</quote> in it.
252
Host name for this client. This is not used by the server
253
directly, but can be, and is by default, used by the
254
checker. See the <option>checker</option> option.
260
<term><option>interval<literal> = </literal><replaceable
261
>TIME</replaceable></option></term>
264
This option is <emphasis>optional</emphasis>.
267
How often to run the checker to confirm that a client is
268
still up. <emphasis>Note:</emphasis> a new checker will
269
not be started if an old one is still running. The server
270
will wait for a checker to complete until the below
271
<quote><varname>timeout</varname></quote> occurs, at which
272
time the client will be disabled, and any running checker
273
killed. The default interval is 2 minutes.
276
The format of <replaceable>TIME</replaceable> is the same
277
as for <varname>timeout</varname> below.
283
<term><option>secfile<literal> = </literal><replaceable
284
>FILENAME</replaceable></option></term>
287
This option is only used if <option>secret</option> is not
288
specified, in which case this option is
289
<emphasis>required</emphasis>.
292
Similar to the <option>secret</option>, except the secret
293
data is in an external file. The contents of the file
294
should <emphasis>not</emphasis> be base64-encoded, but
295
will be sent to clients verbatim.
298
File names of the form <filename>~user/foo/bar</filename>
299
and <filename>$<envar>ENVVAR</envar>/foo/bar</filename>
306
<term><option>secret<literal> = </literal><replaceable
307
>BASE64_ENCODED_DATA</replaceable></option></term>
310
If this option is not specified, the <option
311
>secfile</option> option is <emphasis>required</emphasis>
218
<term><literal>secret</literal></term>
220
<synopsis><literal>secret = </literal><replaceable
221
>BASE64_ENCODED_DATA</replaceable>
315
224
If present, this option must be set to a string of
316
225
base64-encoded binary data. It will be decoded and sent
329
238
lines is that a line beginning with white space adds to
330
239
the value of the previous line, RFC 822-style.
336
<term><option>timeout<literal> = </literal><replaceable
337
>TIME</replaceable></option></term>
340
This option is <emphasis>optional</emphasis>.
343
The timeout is how long the server will wait, after a
344
successful checker run, until a client is disabled and not
345
allowed to get the data this server holds. By default
346
Mandos will use 5 minutes. See also the
347
<option>extended_timeout</option> option.
350
The <replaceable>TIME</replaceable> is specified as an RFC
351
3339 duration; for example
352
<quote><literal>P1Y2M3DT4H5M6S</literal></quote> meaning
353
one year, two months, three days, four hours, five
354
minutes, and six seconds. Some values can be omitted, see
355
RFC 3339 Appendix A for details.
361
<term><option>enabled<literal> = </literal>{ <literal
362
>1</literal> | <literal>yes</literal> | <literal>true</literal
363
> | <literal >on</literal> | <literal>0</literal> | <literal
364
>no</literal> | <literal>false</literal> | <literal
365
>off</literal> }</option></term>
368
Whether this client should be enabled by default. The
369
default is <quote>true</quote>.
242
If this option is not specified, the <option
243
>secfile</option> option is used instead, but one of them
244
<emphasis>must</emphasis> be present.
250
<term><literal>secfile</literal></term>
252
<synopsis><literal>secfile = </literal><replaceable
253
>FILENAME</replaceable>
256
The same as <option>secret</option>, but the secret data
257
is in an external file. The contents of the file should
258
<emphasis>not</emphasis> be base64-encoded, but will be
259
sent to clients verbatim.
262
This option is only used, and <emphasis>must</emphasis> be
263
present, if <option>secret</option> is not specified.
269
<term><literal>host</literal></term>
271
<synopsis><literal>host = </literal><replaceable
272
>STRING</replaceable>
275
Host name for this client. This is not used by the server
276
directly, but can be, and is by default, used by the
277
checker. See the <option>checker</option> option.
377
285
<refsect1 id="expansion">
378
286
<title>EXPANSION</title>
409
317
<quote><literal>%%(<replaceable>foo</replaceable>)s</literal
410
318
></quote> will be replaced by the value of the attribute
411
319
<varname>foo</varname> of the internal
412
<quote><classname>Client</classname></quote> object in the
413
Mandos server. The currently allowed values for
414
<replaceable>foo</replaceable> are:
415
<quote><literal>approval_delay</literal></quote>,
416
<quote><literal>approval_duration</literal></quote>,
417
<quote><literal>created</literal></quote>,
418
<quote><literal>enabled</literal></quote>,
419
<quote><literal>expires</literal></quote>,
420
<quote><literal>fingerprint</literal></quote>,
421
<quote><literal>host</literal></quote>,
422
<quote><literal>interval</literal></quote>,
423
<quote><literal>last_approval_request</literal></quote>,
424
<quote><literal>last_checked_ok</literal></quote>,
425
<quote><literal>last_enabled</literal></quote>,
426
<quote><literal>name</literal></quote>,
427
<quote><literal>timeout</literal></quote>, and, if using
428
D-Bus, <quote><literal>dbus_object_path</literal></quote>.
429
See the source code for details. <emphasis role="strong"
430
>Currently, <emphasis>none</emphasis> of these attributes
431
except <quote><literal>host</literal></quote> are guaranteed
432
to be valid in future versions.</emphasis> Therefore, please
433
let the authors know of any attributes that are useful so they
434
may be preserved to any new versions of this software.
320
<quote><classname>Client</classname></quote> object. See the
321
source code for details, and let the authors know of any
322
attributes that are useful so they may be preserved to any new
323
versions of this software.
437
326
Note that this means that, in order to include an actual
497
385
4T2zw4dxS5NswXWU0sVEXxjs6PYxuIiCTL7vdpx8QjBkrPWDrAbcMyBr2O
499
387
host = foo.example.org
504
392
fingerprint = 3e393aeaefb84c7e89e2f547b3a107558fca3a27
505
393
secfile = /etc/mandos/bar-secret
507
approved_by_default = False
508
approval_delay = PT30S
509
396
</programlisting>
510
397
</informalexample>
513
400
<refsect1 id="see_also">
514
401
<title>SEE ALSO</title>
516
<citerefentry><refentrytitle>intro</refentrytitle>
517
<manvolnum>8mandos</manvolnum></citerefentry>,
518
<citerefentry><refentrytitle>mandos-keygen</refentrytitle>
519
<manvolnum>8</manvolnum></citerefentry>,
520
<citerefentry><refentrytitle>mandos.conf</refentrytitle>
521
<manvolnum>5</manvolnum></citerefentry>,
522
<citerefentry><refentrytitle>mandos</refentrytitle>
523
<manvolnum>8</manvolnum></citerefentry>,
524
<citerefentry><refentrytitle>fping</refentrytitle>
525
<manvolnum>8</manvolnum></citerefentry>
404
<refentrytitle>mandos</refentrytitle>
405
<manvolnum>8</manvolnum></citerefentry>, <citerefentry>
406
<refentrytitle>mandos-keygen</refentrytitle>
407
<manvolnum>8</manvolnum></citerefentry>, <citerefentry>
408
<refentrytitle>mandos.conf</refentrytitle>
409
<manvolnum>5</manvolnum></citerefentry>
530
RFC 3339: <citetitle>Date and Time on the Internet:
531
Timestamps</citetitle>
535
The time intervals are in the "duration" format, as
536
specified in ABNF in Appendix A of RFC 3339.
543
413
<!-- Local Variables: -->