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 "2015-07-20">
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>
43
35
<holder>Teddy Hogeborn</holder>
44
36
<holder>Björn Påhlsson</holder>
46
<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/"/>.
50
64
<refentrytitle>&CONFNAME;</refentrytitle>
51
65
<manvolnum>5</manvolnum>
69
85
><refentrytitle>mandos</refentrytitle>
70
86
<manvolnum>8</manvolnum></citerefentry>, read by it at startup.
71
87
The file needs to list all clients that should be able to use
72
the service. The settings in this file can be overridden by
73
runtime changes to the server, which it saves across restarts.
74
(See the section called <quote>PERSISTENT STATE</quote> in
75
<citerefentry><refentrytitle>mandos</refentrytitle><manvolnum
76
>8</manvolnum></citerefentry>.) However, any <emphasis
77
>changes</emphasis> to this file (including adding and removing
78
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
81
93
The format starts with a <literal>[<replaceable>section
105
117
start time expansion, see <xref linkend="expansion"/>.
108
Unknown options are ignored. The used options are as follows:
120
Uknown options are ignored. The used options are as follows:
114
<term><option>approval_delay<literal> = </literal><replaceable
115
>TIME</replaceable></option></term>
118
This option is <emphasis>optional</emphasis>.
121
How long to wait for external approval before resorting to
122
use the <option>approved_by_default</option> value. The
123
default is <quote>PT0S</quote>, i.e. not to wait.
126
The format of <replaceable>TIME</replaceable> is the same
127
as for <varname>timeout</varname> below.
133
<term><option>approval_duration<literal> = </literal
134
><replaceable>TIME</replaceable></option></term>
137
This option is <emphasis>optional</emphasis>.
140
How long an external approval lasts. The default is 1
144
The format of <replaceable>TIME</replaceable> is the same
145
as for <varname>timeout</varname> below.
151
<term><option>approved_by_default<literal> = </literal
152
>{ <literal >1</literal> | <literal>yes</literal> | <literal
153
>true</literal> | <literal>on</literal> | <literal
154
>0</literal> | <literal>no</literal> | <literal
155
>false</literal> | <literal>off</literal> }</option></term>
158
Whether to approve a client by default after
159
the <option>approval_delay</option>. The default
160
is <quote>True</quote>.
166
<term><option>checker<literal> = </literal><replaceable
167
>COMMAND</replaceable></option></term>
170
This option is <emphasis>optional</emphasis>.
173
This option overrides the default shell command that the
174
server will use to check if the client is still up. Any
175
output of the command will be ignored, only the exit code
176
is checked: If the exit code of the command is zero, the
177
client is considered up. The command will be run using
178
<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>
179
188
<option>-c</option></command></quote>, so
180
189
<varname>PATH</varname> will be searched. The default
181
190
value for the checker command is <quote><literal
182
191
><command>fping</command> <option>-q</option> <option
183
>--</option> %%(host)s</literal></quote>. Note that
184
<command>mandos-keygen</command>, when generating output
185
to be inserted into this file, normally looks for an SSH
186
server on the Mandos client, and, if it find one, outputs
187
a <option>checker</option> option to check for the
188
client’s key fingerprint – this is more secure against
192
>--</option> %(host)s</literal></quote>.
192
195
In addition to normal start time expansion, this option
200
<term><option>extended_timeout<literal> = </literal><replaceable
201
>TIME</replaceable></option></term>
204
This option is <emphasis>optional</emphasis>.
207
Extended timeout is an added timeout that is given once
208
after a password has been sent successfully to a client.
209
The timeout is by default longer than the normal timeout,
210
and is used for handling the extra long downtime while a
211
machine is booting up. Time to take into consideration
212
when changing this value is file system checks and quota
213
checks. The default value is 15 minutes.
216
The format of <replaceable>TIME</replaceable> is the same
217
as for <varname>timeout</varname> below.
223
<term><option>fingerprint<literal> = </literal
224
><replaceable>HEXSTRING</replaceable></option></term>
227
This option is <emphasis>required</emphasis>.
203
<term><literal>fingerprint</literal></term>
205
<synopsis><literal>fingerprint = </literal><replaceable
206
>HEXSTRING</replaceable>
230
209
This option sets the OpenPGP fingerprint that identifies
231
210
the public key that clients authenticate themselves with
239
<term><option><literal>host = </literal><replaceable
240
>STRING</replaceable></option></term>
243
This option is <emphasis>optional</emphasis>, but highly
244
<emphasis>recommended</emphasis> unless the
245
<option>checker</option> option is modified to a
246
non-standard value without <quote>%%(host)s</quote> in it.
249
Host name for this client. This is not used by the server
250
directly, but can be, and is by default, used by the
251
checker. See the <option>checker</option> option.
257
<term><option>interval<literal> = </literal><replaceable
258
>TIME</replaceable></option></term>
261
This option is <emphasis>optional</emphasis>.
264
How often to run the checker to confirm that a client is
265
still up. <emphasis>Note:</emphasis> a new checker will
266
not be started if an old one is still running. The server
267
will wait for a checker to complete until the below
268
<quote><varname>timeout</varname></quote> occurs, at which
269
time the client will be disabled, and any running checker
270
killed. The default interval is 2 minutes.
273
The format of <replaceable>TIME</replaceable> is the same
274
as for <varname>timeout</varname> below.
280
<term><option>secfile<literal> = </literal><replaceable
281
>FILENAME</replaceable></option></term>
284
This option is only used if <option>secret</option> is not
285
specified, in which case this option is
286
<emphasis>required</emphasis>.
289
Similar to the <option>secret</option>, except the secret
290
data is in an external file. The contents of the file
291
should <emphasis>not</emphasis> be base64-encoded, but
292
will be sent to clients verbatim.
295
File names of the form <filename>~user/foo/bar</filename>
296
and <filename>$<envar>ENVVAR</envar>/foo/bar</filename>
303
<term><option>secret<literal> = </literal><replaceable
304
>BASE64_ENCODED_DATA</replaceable></option></term>
307
If this option is not specified, the <option
308
>secfile</option> option is <emphasis>required</emphasis>
218
<term><literal>secret</literal></term>
220
<synopsis><literal>secret = </literal><replaceable
221
>BASE64_ENCODED_DATA</replaceable>
312
224
If present, this option must be set to a string of
313
225
base64-encoded binary data. It will be decoded and sent
326
238
lines is that a line beginning with white space adds to
327
239
the value of the previous line, RFC 822-style.
333
<term><option>timeout<literal> = </literal><replaceable
334
>TIME</replaceable></option></term>
337
This option is <emphasis>optional</emphasis>.
340
The timeout is how long the server will wait, after a
341
successful checker run, until a client is disabled and not
342
allowed to get the data this server holds. By default
343
Mandos will use 5 minutes. See also the
344
<option>extended_timeout</option> option.
347
The <replaceable>TIME</replaceable> is specified as an RFC
348
3339 duration; for example
349
<quote><literal>P1Y2M3DT4H5M6S</literal></quote> meaning
350
one year, two months, three days, four hours, five
351
minutes, and six seconds. Some values can be omitted, see
352
RFC 3339 Appendix A for details.
358
<term><option>enabled<literal> = </literal>{ <literal
359
>1</literal> | <literal>yes</literal> | <literal>true</literal
360
> | <literal >on</literal> | <literal>0</literal> | <literal
361
>no</literal> | <literal>false</literal> | <literal
362
>off</literal> }</option></term>
365
Whether this client should be enabled by default. The
366
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.
374
285
<refsect1 id="expansion">
375
286
<title>EXPANSION</title>
406
317
<quote><literal>%%(<replaceable>foo</replaceable>)s</literal
407
318
></quote> will be replaced by the value of the attribute
408
319
<varname>foo</varname> of the internal
409
<quote><classname>Client</classname></quote> object in the
410
Mandos server. The currently allowed values for
411
<replaceable>foo</replaceable> are:
412
<quote><literal>approval_delay</literal></quote>,
413
<quote><literal>approval_duration</literal></quote>,
414
<quote><literal>created</literal></quote>,
415
<quote><literal>enabled</literal></quote>,
416
<quote><literal>expires</literal></quote>,
417
<quote><literal>fingerprint</literal></quote>,
418
<quote><literal>host</literal></quote>,
419
<quote><literal>interval</literal></quote>,
420
<quote><literal>last_approval_request</literal></quote>,
421
<quote><literal>last_checked_ok</literal></quote>,
422
<quote><literal>last_enabled</literal></quote>,
423
<quote><literal>name</literal></quote>,
424
<quote><literal>timeout</literal></quote>, and, if using
425
D-Bus, <quote><literal>dbus_object_path</literal></quote>.
426
See the source code for details. <emphasis role="strong"
427
>Currently, <emphasis>none</emphasis> of these attributes
428
except <quote><literal>host</literal></quote> are guaranteed
429
to be valid in future versions.</emphasis> Therefore, please
430
let the authors know of any attributes that are useful so they
431
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.
434
326
Note that this means that, in order to include an actual
493
385
4T2zw4dxS5NswXWU0sVEXxjs6PYxuIiCTL7vdpx8QjBkrPWDrAbcMyBr2O
495
387
host = foo.example.org
500
392
fingerprint = 3e393aeaefb84c7e89e2f547b3a107558fca3a27
501
393
secfile = /etc/mandos/bar-secret
503
approved_by_default = False
504
approval_delay = PT30S
505
396
</programlisting>
506
397
</informalexample>
509
400
<refsect1 id="see_also">
510
401
<title>SEE ALSO</title>
512
<citerefentry><refentrytitle>intro</refentrytitle>
513
<manvolnum>8mandos</manvolnum></citerefentry>,
514
403
<citerefentry><refentrytitle>mandos-keygen</refentrytitle>
515
404
<manvolnum>8</manvolnum></citerefentry>,
516
405
<citerefentry><refentrytitle>mandos.conf</refentrytitle>
517
406
<manvolnum>5</manvolnum></citerefentry>,
518
407
<citerefentry><refentrytitle>mandos</refentrytitle>
519
<manvolnum>8</manvolnum></citerefentry>,
520
<citerefentry><refentrytitle>fping</refentrytitle>
521
408
<manvolnum>8</manvolnum></citerefentry>
526
RFC 3339: <citetitle>Date and Time on the Internet:
527
Timestamps</citetitle>
531
The time intervals are in the "duration" format, as
532
specified in ABNF in Appendix A of RFC 3339.
539
412
<!-- Local Variables: -->