58
68
<refname><filename>&CONFNAME;</filename></refname>
60
Configuration file for the Mandos server
70
Configuration file for Mandos clients
65
<synopsis>&CONFPATH;</synopsis>
68
80
<refsect1 id="description">
69
81
<title>DESCRIPTION</title>
71
The file &CONFPATH; is a configuration file for <citerefentry
72
><refentrytitle>mandos</refentrytitle>
73
<manvolnum>8</manvolnum></citerefentry>, read by it at startup.
74
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.
84
The format starts with a <literal>[<replaceable>section
85
header</replaceable>]</literal> which is either
86
<literal>[DEFAULT]</literal> or <literal>[<replaceable>client
87
name</replaceable>]</literal>. The <replaceable>client
88
name</replaceable> can be anything, and is not tied to a host
89
name. Following the section header is any number of
90
<quote><varname><replaceable>option</replaceable
91
></varname>=<replaceable>value</replaceable></quote> entries,
92
with continuations in the style of RFC 822. <quote><varname
93
><replaceable>option</replaceable></varname>: <replaceable
94
>value</replaceable></quote> is also accepted. Note that
95
leading whitespace is removed from values. Values can contain
96
format strings which refer to other values in the same section,
97
or values in the <quote>DEFAULT</quote> section (see <xref
98
linkend="expansion"/>). Lines beginning with <quote>#</quote>
99
or <quote>;</quote> are ignored and may be used to provide
104
<refsect1 id="options">
105
<title>OPTIONS</title>
107
<emphasis>Note:</emphasis> all option values are subject to
108
start time expansion, see <xref linkend="expansion"/>.
111
Unknown 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>
182
<option>-c</option></command></quote>, so
183
<varname>PATH</varname> will be searched. The default
184
value for the checker command is <quote><literal
185
><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 finds one, outputs
190
a <option>checker</option> option to check for the
191
client’s SSH key fingerprint – this is more secure against
195
In addition to normal start time expansion, this option
196
will also be subject to runtime expansion; see <xref
197
linkend="expansion"/>.
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>.
233
This option sets the OpenPGP fingerprint that identifies
234
the public key that clients authenticate themselves with
235
through TLS. The string needs to be in hexadecimal form,
236
but spaces or upper/lower case are not significant.
242
<term><option>key_id<literal> = </literal
243
><replaceable>HEXSTRING</replaceable></option></term>
246
This option is <emphasis>optional</emphasis>.
249
This option sets the certificate key ID that identifies
250
the public key that clients authenticate themselves with
251
through TLS. The string needs to be in hexadecimal form,
252
but spaces or upper/lower case are not significant.
258
<term><option><literal>host = </literal><replaceable
259
>STRING</replaceable></option></term>
262
This option is <emphasis>optional</emphasis>, but highly
263
<emphasis>recommended</emphasis> unless the
264
<option>checker</option> option is modified to a
265
non-standard value without <quote>%%(host)s</quote> in it.
268
Host name for this client. This is not used by the server
269
directly, but can be, and is by default, used by the
270
checker. See the <option>checker</option> option.
276
<term><option>interval<literal> = </literal><replaceable
277
>TIME</replaceable></option></term>
280
This option is <emphasis>optional</emphasis>.
283
How often to run the checker to confirm that a client is
284
still up. <emphasis>Note:</emphasis> a new checker will
285
not be started if an old one is still running. The server
286
will wait for a checker to complete until the below
287
<quote><varname>timeout</varname></quote> occurs, at which
288
time the client will be disabled, and any running checker
289
killed. The default interval is 2 minutes.
292
The format of <replaceable>TIME</replaceable> is the same
293
as for <varname>timeout</varname> below.
299
<term><option>secfile<literal> = </literal><replaceable
300
>FILENAME</replaceable></option></term>
303
This option is only used if <option>secret</option> is not
304
specified, in which case this option is
305
<emphasis>required</emphasis>.
308
Similar to the <option>secret</option>, except the secret
309
data is in an external file. The contents of the file
310
should <emphasis>not</emphasis> be base64-encoded, but
311
will be sent to clients verbatim.
314
File names of the form <filename>~user/foo/bar</filename>
315
and <filename>$<envar>ENVVAR</envar>/foo/bar</filename>
322
<term><option>secret<literal> = </literal><replaceable
323
>BASE64_ENCODED_DATA</replaceable></option></term>
326
If this option is not specified, the <option
327
>secfile</option> option is <emphasis>required</emphasis>
331
If present, this option must be set to a string of
332
base64-encoded binary data. It will be decoded and sent
333
to the client matching the above <option>key_id</option>
334
or <option>fingerprint</option>. This should, of course,
335
be OpenPGP encrypted data, decryptable only by the client.
336
The program <citerefentry><refentrytitle><command
337
>mandos-keygen</command></refentrytitle><manvolnum
338
>8</manvolnum></citerefentry> can, using its
339
<option>--password</option> option, be used to generate
343
Note: this value of this option will probably be very
344
long. A useful feature to avoid having unreadably-long
345
lines is that a line beginning with white space adds to
346
the value of the previous line, RFC 822-style.
352
<term><option>timeout<literal> = </literal><replaceable
353
>TIME</replaceable></option></term>
356
This option is <emphasis>optional</emphasis>.
359
The timeout is how long the server will wait, after a
360
successful checker run, until a client is disabled and not
361
allowed to get the data this server holds. By default
362
Mandos will use 5 minutes. See also the
363
<option>extended_timeout</option> option.
366
The <replaceable>TIME</replaceable> is specified as an RFC
367
3339 duration; for example
368
<quote><literal>P1Y2M3DT4H5M6S</literal></quote> meaning
369
one year, two months, three days, four hours, five
370
minutes, and six seconds. Some values can be omitted, see
371
RFC 3339 Appendix A for details.
377
<term><option>enabled<literal> = </literal>{ <literal
378
>1</literal> | <literal>yes</literal> | <literal>true</literal
379
> | <literal >on</literal> | <literal>0</literal> | <literal
380
>no</literal> | <literal>false</literal> | <literal
381
>off</literal> }</option></term>
384
Whether this client should be enabled by default. The
385
default is <quote>true</quote>.
393
<refsect1 id="expansion">
394
<title>EXPANSION</title>
396
There are two forms of expansion: Start time expansion and
399
<refsect2 id="start_time_expansion">
400
<title>START TIME EXPANSION</title>
402
Any string in an option value of the form
403
<quote><literal>%(<replaceable>foo</replaceable>)s</literal
404
></quote> will be replaced by the value of the option
405
<varname>foo</varname> either in the same section, or, if it
406
does not exist there, the <literal>[DEFAULT]</literal>
407
section. This is done at start time, when the configuration
411
Note that this means that, in order to include an actual
412
percent character (<quote>%</quote>) in an option value, two
413
percent characters in a row (<quote>%%</quote>) must be
417
<refsect2 id="runtime_expansion">
418
<title>RUNTIME EXPANSION</title>
420
This is currently only done for the <varname>checker</varname>
424
Any string in an option value of the form
425
<quote><literal>%%(<replaceable>foo</replaceable>)s</literal
426
></quote> will be replaced by the value of the attribute
427
<varname>foo</varname> of the internal
428
<quote><classname>Client</classname></quote> object in the
429
Mandos server. The currently allowed values for
430
<replaceable>foo</replaceable> are:
431
<quote><literal>approval_delay</literal></quote>,
432
<quote><literal>approval_duration</literal></quote>,
433
<quote><literal>created</literal></quote>,
434
<quote><literal>enabled</literal></quote>,
435
<quote><literal>expires</literal></quote>,
436
<quote><literal>key_id</literal></quote>,
437
<quote><literal>fingerprint</literal></quote>,
438
<quote><literal>host</literal></quote>,
439
<quote><literal>interval</literal></quote>,
440
<quote><literal>last_approval_request</literal></quote>,
441
<quote><literal>last_checked_ok</literal></quote>,
442
<quote><literal>last_enabled</literal></quote>,
443
<quote><literal>name</literal></quote>,
444
<quote><literal>timeout</literal></quote>, and, if using
445
D-Bus, <quote><literal>dbus_object_path</literal></quote>.
446
See the source code for details. <emphasis role="strong"
447
>Currently, <emphasis>none</emphasis> of these attributes
448
except <quote><literal>host</literal></quote> are guaranteed
449
to be valid in future versions.</emphasis> Therefore, please
450
let the authors know of any attributes that are useful so they
451
may be preserved to any new versions of this software.
454
Note that this means that, in order to include an actual
455
percent character (<quote>%</quote>) in a
456
<varname>checker</varname> option, <emphasis>four</emphasis>
457
percent characters in a row (<quote>%%%%</quote>) must be
458
entered. Also, a bad format here will lead to an immediate
459
but <emphasis>silent</emphasis> run-time fatal exit; debug
460
mode is needed to expose an error of this kind.
466
<refsect1 id="files">
469
The file described here is &CONFPATH;
476
The format for specifying times for <varname>timeout</varname>
477
and <varname>interval</varname> is not very good.
480
The difference between
481
<literal>%%(<replaceable>foo</replaceable>)s</literal> and
482
<literal>%(<replaceable>foo</replaceable>)s</literal> is
485
<xi:include href="bugs.xml"/>
488
<refsect1 id="example">
489
<title>EXAMPLE</title>
83
The file &CONFPATH; is the configuration file for mandos where
84
each client that will be abel to use the service need to be
85
specified. The configuration file is looked on at the startup of
86
the service, so to reenable timedout clients one need to only
87
restart the server. The format starts with a section under []
88
which is eather <literal>[DEFAULT]</literal> or a client
89
name. Values is set through the use of VAR = VALUE pair. Values
94
<refsect1 id="default">
95
<title>DEFAULT</title>
97
The paramters for <literal>[DEFAULT]</literal> are:
103
<term><literal>timeout</literal></term>
106
This option allows you to override the default timeout
107
that clients will get. By default mandos will use 1hr.
113
<term><literal>interval</literal></term>
116
This option allows you to override the default interval
117
used between checkups for disconnected clients. By default
124
<term><literal>checker</literal></term>
127
This option allows you to override the default shell
128
command that the server will use to check up if the client
129
is still up. By default mandos will "fping -q -- %%(fqdn)s"
137
<refsect1 id="clients">
138
<title>CLIENTS</title>
140
The paramters for clients are:
146
<term><literal>fingerprint</literal></term>
149
This option sets the openpgp fingerprint that identifies
150
the public certificate that clients authenticates themself
151
through gnutls. The string need to be in hex-decimal form.
157
<term><literal>secret</literal></term>
160
Base 64 encoded OpenPGP encrypted password encrypted by
161
the clients openpgp certificate.
167
<term><literal>secfile</literal></term>
170
Base 64 encoded OpenPGP encrypted password encrypted by
171
the clients openpgp certificate as a binary file.
177
<term><literal>fqdn</literal></term>
180
FQDN, that can be used in for checking that the client is up.
186
<term><literal>checker</literal></term>
189
Shell command that the server will use to check up if the
196
<term><literal>timeout</literal></term>
199
Duration that a client can be down whitout be removed from
208
<refsect1 id="examples">
209
<title>EXAMPLES</title>
490
210
<informalexample>
495
checker = fping -q -- %%(host)s
215
checker = fping -q -- %%(fqdn)s
499
key_id = 788cd77115cd0bb7b2d5e0ae8496f6b48149d5e712c652076b1fd2d957ef7c1f
500
218
fingerprint = 7788 2722 5BA7 DE53 9C5A 7CFA 59CF F7CD BD9A 5920
502
hQIOA6QdEjBs2L/HEAf/TCyrDe5Xnm9esa+Pb/vWF9CUqfn4srzVgSu234
503
REJMVv7lBSrPE2132Lmd2gqF1HeLKDJRSVxJpt6xoWOChGHg+TMyXDxK+N
504
Xl89vGvdU1XfhKkVm9MDLOgT5ECDPysDGHFPDhqHOSu3Kaw2DWMV/iH9vz
505
3Z20erVNbdcvyBnuojcoWO/6yfB5EQO0BXp7kcyy00USA3CjD5FGZdoQGI
506
Tb8A/ar0tVA5crSQmaSotm6KmNLhrFnZ5BxX+TiE+eTUTqSloWRY6VAvqW
507
QHC7OASxK5E6RXPBuFH5IohUA2Qbk5AHt99pYvsIPX88j2rWauOokoiKZo
508
t/9leJ8VxO5l3wf/U64IH8bkPIoWmWZfd/nqh4uwGNbCgKMyT+AnvH7kMJ
509
3i7DivfWl2mKLV0PyPHUNva0VQxX6yYjcOhj1R6fCr/at8/NSLe2OhLchz
510
dC+Ls9h+kvJXgF8Sisv+Wk/1RadPLFmraRlqvJwt6Ww21LpiXqXHV2mIgq
511
WnR98YgSvUi3TJHrUQiNc9YyBzuRo0AjgG2C9qiE3FM+Y28+iQ/sR3+bFs
512
zYuZKVTObqiIslwXu7imO0cvvFRgJF/6u3HNFQ4LUTGhiM3FQmC6NNlF3/
513
vJM2hwRDMcJqDd54Twx90Wh+tYz0z7QMsK4ANXWHHWHR0JchnLWmenzbtW
514
5MHdW9AYsNJZAQSOpirE4Xi31CSlWAi9KV+cUCmWF5zOFy1x23P6PjdaRm
515
4T2zw4dxS5NswXWU0sVEXxjs6PYxuIiCTL7vdpx8QjBkrPWDrAbcMyBr2O
517
host = foo.example.org
221
hQIOA6QdEjBs2L/HEAf/TCyrDe5Xnm9esa+Pb/vWF9CUqfn4srzVgSu234REJMVv
222
7lBSrPE2132Lmd2gqF1HeLKDJRSVxJpt6xoWOChGHg+TMyXDxK+NXl89vGvdU1Xf
223
hKkVm9MDLOgT5ECDPysDGHFPDhqHOSu3Kaw2DWMV/iH9vz3Z20erVNbdcvyBnuoj
224
coWO/6yfB5EQO0BXp7kcyy00USA3CjD5FGZdoQGITb8A/ar0tVA5crSQmaSotm6K
225
mNLhrFnZ5BxX+TiE+eTUTqSloWRY6VAvqWQHC7OASxK5E6RXPBuFH5IohUA2Qbk5
226
AHt99pYvsIPX88j2rWauOokoiKZot/9leJ8VxO5l3wf/U64IH8bkPIoWmWZfd/nq
227
h4uwGNbCgKMyT+AnvH7kMJ3i7DivfWl2mKLV0PyPHUNva0VQxX6yYjcOhj1R6fCr
228
/at8/NSLe2OhLchzdC+Ls9h+kvJXgF8Sisv+Wk/1RadPLFmraRlqvJwt6Ww21Lpi
229
XqXHV2mIgqWnR98YgSvUi3TJHrUQiNc9YyBzuRo0AjgG2C9qiE3FM+Y28+iQ/sR3
230
+bFszYuZKVTObqiIslwXu7imO0cvvFRgJF/6u3HNFQ4LUTGhiM3FQmC6NNlF3/vJ
231
M2hwRDMcJqDd54Twx90Wh+tYz0z7QMsK4ANXWHHWHR0JchnLWmenzbtW5MHdW9AY
232
sNJZAQSOpirE4Xi31CSlWAi9KV+cUCmWF5zOFy1x23P6PjdaRm4T2zw4dxS5NswX
233
WU0sVEXxjs6PYxuIiCTL7vdpx8QjBkrPWDrAbcMyBr2OQlnHIvPzEArRQLo=
522
key_id = F90C7A81D72D1EA69A51031A91FF8885F36C8B46D155C8C58709A4C99AE9E361
523
fingerprint = 3e393aeaefb84c7e89e2f547b3a107558fca3a27
524
secfile = /etc/mandos/bar-secret
526
approved_by_default = False
527
approval_delay = PT30S
528
238
</programlisting>
529
239
</informalexample>
532
<refsect1 id="see_also">
533
<title>SEE ALSO</title>
242
<refsect1 id="files">
535
<citerefentry><refentrytitle>intro</refentrytitle>
536
<manvolnum>8mandos</manvolnum></citerefentry>,
537
<citerefentry><refentrytitle>mandos-keygen</refentrytitle>
538
<manvolnum>8</manvolnum></citerefentry>,
539
<citerefentry><refentrytitle>mandos.conf</refentrytitle>
540
<manvolnum>5</manvolnum></citerefentry>,
541
<citerefentry><refentrytitle>mandos</refentrytitle>
542
<manvolnum>8</manvolnum></citerefentry>,
543
<citerefentry><refentrytitle>fping</refentrytitle>
544
<manvolnum>8</manvolnum></citerefentry>
245
The file described here is &CONFPATH;
549
RFC 3339: <citetitle>Date and Time on the Internet:
550
Timestamps</citetitle>
554
The time intervals are in the "duration" format, as
555
specified in ABNF in Appendix A of RFC 3339.
562
<!-- Local Variables: -->
563
<!-- time-stamp-start: "<!ENTITY TIMESTAMP [\"']" -->
564
<!-- time-stamp-end: "[\"']>" -->
565
<!-- time-stamp-format: "%:y-%02m-%02d" -->