68
56
<refname><filename>&CONFNAME;</filename></refname>
70
Configuration file for Mandos clients
58
Configuration file for the Mandos server
63
<synopsis>&CONFPATH;</synopsis>
80
66
<refsect1 id="description">
81
67
<title>DESCRIPTION</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>
69
The file &CONFPATH; is a configuration file for <citerefentry
70
><refentrytitle>mandos</refentrytitle>
71
<manvolnum>8</manvolnum></citerefentry>, read by it at startup.
72
The file needs to list all clients that should be able to use
73
the service. The settings in this file can be overridden by
74
runtime changes to the server, which it saves across restarts.
75
(See the section called <quote>PERSISTENT STATE</quote> in
76
<citerefentry><refentrytitle>mandos</refentrytitle><manvolnum
77
>8</manvolnum></citerefentry>.) However, any <emphasis
78
>changes</emphasis> to this file (including adding and removing
79
clients) will, at startup, override changes done during runtime.
82
The format starts with a <literal>[<replaceable>section
83
header</replaceable>]</literal> which is either
84
<literal>[DEFAULT]</literal> or <literal>[<replaceable>client
85
name</replaceable>]</literal>. The <replaceable>client
86
name</replaceable> can be anything, and is not tied to a host
87
name. Following the section header is any number of
88
<quote><varname><replaceable>option</replaceable
89
></varname>=<replaceable>value</replaceable></quote> entries,
90
with continuations in the style of RFC 822. <quote><varname
91
><replaceable>option</replaceable></varname>: <replaceable
92
>value</replaceable></quote> is also accepted. Note that
93
leading whitespace is removed from values. Values can contain
94
format strings which refer to other values in the same section,
95
or values in the <quote>DEFAULT</quote> section (see <xref
96
linkend="expansion"/>). Lines beginning with <quote>#</quote>
97
or <quote>;</quote> are ignored and may be used to provide
102
<refsect1 id="options">
103
<title>OPTIONS</title>
105
<emphasis>Note:</emphasis> all option values are subject to
106
start time expansion, see <xref linkend="expansion"/>.
109
Unknown options are ignored. The used options are as follows:
115
<term><option>approval_delay<literal> = </literal><replaceable
116
>TIME</replaceable></option></term>
119
This option is <emphasis>optional</emphasis>.
122
How long to wait for external approval before resorting to
123
use the <option>approved_by_default</option> value. The
124
default is <quote>PT0S</quote>, i.e. not to wait.
127
The format of <replaceable>TIME</replaceable> is the same
128
as for <varname>timeout</varname> below.
134
<term><option>approval_duration<literal> = </literal
135
><replaceable>TIME</replaceable></option></term>
138
This option is <emphasis>optional</emphasis>.
141
How long an external approval lasts. The default is 1
145
The format of <replaceable>TIME</replaceable> is the same
146
as for <varname>timeout</varname> below.
152
<term><option>approved_by_default<literal> = </literal
153
>{ <literal >1</literal> | <literal>yes</literal> | <literal
154
>true</literal> | <literal>on</literal> | <literal
155
>0</literal> | <literal>no</literal> | <literal
156
>false</literal> | <literal>off</literal> }</option></term>
159
Whether to approve a client by default after
160
the <option>approval_delay</option>. The default
161
is <quote>True</quote>.
167
<term><option>checker<literal> = </literal><replaceable
168
>COMMAND</replaceable></option></term>
171
This option is <emphasis>optional</emphasis>.
174
This option overrides the default shell command that the
175
server will use to check if the client is still up. Any
176
output of the command will be ignored, only the exit code
177
is checked: If the exit code of the command is zero, the
178
client is considered up. The command will be run using
179
<quote><command><filename>/bin/sh</filename>
180
<option>-c</option></command></quote>, so
181
<varname>PATH</varname> will be searched. The default
182
value for the checker command is <quote><literal
183
><command>fping</command> <option>-q</option> <option
184
>--</option> %%(host)s</literal></quote>. Note that
185
<command>mandos-keygen</command>, when generating output
186
to be inserted into this file, normally looks for an SSH
187
server on the Mandos client, and, if it find one, outputs
188
a <option>checker</option> option to check for the
189
client’s key fingerprint – this is more secure against
193
In addition to normal start time expansion, this option
194
will also be subject to runtime expansion; see <xref
195
linkend="expansion"/>.
201
<term><option>extended_timeout<literal> = </literal><replaceable
202
>TIME</replaceable></option></term>
205
This option is <emphasis>optional</emphasis>.
208
Extended timeout is an added timeout that is given once
209
after a password has been sent successfully to a client.
210
The timeout is by default longer than the normal timeout,
211
and is used for handling the extra long downtime while a
212
machine is booting up. Time to take into consideration
213
when changing this value is file system checks and quota
214
checks. The default value is 15 minutes.
217
The format of <replaceable>TIME</replaceable> is the same
218
as for <varname>timeout</varname> below.
224
<term><option>fingerprint<literal> = </literal
225
><replaceable>HEXSTRING</replaceable></option></term>
228
This option is <emphasis>required</emphasis>.
231
This option sets the OpenPGP fingerprint that identifies
232
the public key that clients authenticate themselves with
233
through TLS. The string needs to be in hexidecimal form,
234
but spaces or upper/lower case are not significant.
240
<term><option><literal>host = </literal><replaceable
241
>STRING</replaceable></option></term>
244
This option is <emphasis>optional</emphasis>, but highly
245
<emphasis>recommended</emphasis> unless the
246
<option>checker</option> option is modified to a
247
non-standard value without <quote>%%(host)s</quote> in it.
250
Host name for this client. This is not used by the server
251
directly, but can be, and is by default, used by the
252
checker. See the <option>checker</option> option.
258
<term><option>interval<literal> = </literal><replaceable
259
>TIME</replaceable></option></term>
262
This option is <emphasis>optional</emphasis>.
265
How often to run the checker to confirm that a client is
266
still up. <emphasis>Note:</emphasis> a new checker will
267
not be started if an old one is still running. The server
268
will wait for a checker to complete until the below
269
<quote><varname>timeout</varname></quote> occurs, at which
270
time the client will be disabled, and any running checker
271
killed. The default interval is 2 minutes.
274
The format of <replaceable>TIME</replaceable> is the same
275
as for <varname>timeout</varname> below.
281
<term><option>secfile<literal> = </literal><replaceable
282
>FILENAME</replaceable></option></term>
285
This option is only used if <option>secret</option> is not
286
specified, in which case this option is
287
<emphasis>required</emphasis>.
290
Similar to the <option>secret</option>, except the secret
291
data is in an external file. The contents of the file
292
should <emphasis>not</emphasis> be base64-encoded, but
293
will be sent to clients verbatim.
296
File names of the form <filename>~user/foo/bar</filename>
297
and <filename>$<envar>ENVVAR</envar>/foo/bar</filename>
304
<term><option>secret<literal> = </literal><replaceable
305
>BASE64_ENCODED_DATA</replaceable></option></term>
308
If this option is not specified, the <option
309
>secfile</option> option is <emphasis>required</emphasis>
313
If present, this option must be set to a string of
314
base64-encoded binary data. It will be decoded and sent
315
to the client matching the above
316
<option>fingerprint</option>. This should, of course, be
317
OpenPGP encrypted data, decryptable only by the client.
318
The program <citerefentry><refentrytitle><command
319
>mandos-keygen</command></refentrytitle><manvolnum
320
>8</manvolnum></citerefentry> can, using its
321
<option>--password</option> option, be used to generate
325
Note: this value of this option will probably be very
326
long. A useful feature to avoid having unreadably-long
327
lines is that a line beginning with white space adds to
328
the value of the previous line, RFC 822-style.
334
<term><option>timeout<literal> = </literal><replaceable
335
>TIME</replaceable></option></term>
338
This option is <emphasis>optional</emphasis>.
341
The timeout is how long the server will wait, after a
342
successful checker run, until a client is disabled and not
343
allowed to get the data this server holds. By default
344
Mandos will use 5 minutes. See also the
345
<option>extended_timeout</option> option.
348
The <replaceable>TIME</replaceable> is specified as an RFC
349
3339 duration; for example
350
<quote><literal>P1Y2M3DT4H5M6S</literal></quote> meaning
351
one year, two months, three days, four hours, five
352
minutes, and six seconds. Some values can be omitted, see
353
RFC 3339 Appendix A for details.
359
<term><option>enabled<literal> = </literal>{ <literal
360
>1</literal> | <literal>yes</literal> | <literal>true</literal
361
> | <literal >on</literal> | <literal>0</literal> | <literal
362
>no</literal> | <literal>false</literal> | <literal
363
>off</literal> }</option></term>
366
Whether this client should be enabled by default. The
367
default is <quote>true</quote>.
375
<refsect1 id="expansion">
376
<title>EXPANSION</title>
378
There are two forms of expansion: Start time expansion and
381
<refsect2 id="start_time_expansion">
382
<title>START TIME EXPANSION</title>
384
Any string in an option value of the form
385
<quote><literal>%(<replaceable>foo</replaceable>)s</literal
386
></quote> will be replaced by the value of the option
387
<varname>foo</varname> either in the same section, or, if it
388
does not exist there, the <literal>[DEFAULT]</literal>
389
section. This is done at start time, when the configuration
393
Note that this means that, in order to include an actual
394
percent character (<quote>%</quote>) in an option value, two
395
percent characters in a row (<quote>%%</quote>) must be
399
<refsect2 id="runtime_expansion">
400
<title>RUNTIME EXPANSION</title>
402
This is currently only done for the <varname>checker</varname>
406
Any string in an option value of the form
407
<quote><literal>%%(<replaceable>foo</replaceable>)s</literal
408
></quote> will be replaced by the value of the attribute
409
<varname>foo</varname> of the internal
410
<quote><classname>Client</classname></quote> object in the
411
Mandos server. The currently allowed values for
412
<replaceable>foo</replaceable> are:
413
<quote><literal>approval_delay</literal></quote>,
414
<quote><literal>approval_duration</literal></quote>,
415
<quote><literal>created</literal></quote>,
416
<quote><literal>enabled</literal></quote>,
417
<quote><literal>expires</literal></quote>,
418
<quote><literal>fingerprint</literal></quote>,
419
<quote><literal>host</literal></quote>,
420
<quote><literal>interval</literal></quote>,
421
<quote><literal>last_approval_request</literal></quote>,
422
<quote><literal>last_checked_ok</literal></quote>,
423
<quote><literal>last_enabled</literal></quote>,
424
<quote><literal>name</literal></quote>,
425
<quote><literal>timeout</literal></quote>, and, if using
426
D-Bus, <quote><literal>dbus_object_path</literal></quote>.
427
See the source code for details. <emphasis role="strong"
428
>Currently, <emphasis>none</emphasis> of these attributes
429
except <quote><literal>host</literal></quote> are guaranteed
430
to be valid in future versions.</emphasis> Therefore, please
431
let the authors know of any attributes that are useful so they
432
may be preserved to any new versions of this software.
435
Note that this means that, in order to include an actual
436
percent character (<quote>%</quote>) in a
437
<varname>checker</varname> option, <emphasis>four</emphasis>
438
percent characters in a row (<quote>%%%%</quote>) must be
439
entered. Also, a bad format here will lead to an immediate
440
but <emphasis>silent</emphasis> run-time fatal exit; debug
441
mode is needed to expose an error of this kind.
447
<refsect1 id="files">
450
The file described here is &CONFPATH;
457
The format for specifying times for <varname>timeout</varname>
458
and <varname>interval</varname> is not very good.
461
The difference between
462
<literal>%%(<replaceable>foo</replaceable>)s</literal> and
463
<literal>%(<replaceable>foo</replaceable>)s</literal> is
468
<refsect1 id="example">
469
<title>EXAMPLE</title>
210
470
<informalexample>
215
checker = fping -q -- %%(fqdn)s
475
checker = fping -q -- %%(host)s
218
479
fingerprint = 7788 2722 5BA7 DE53 9C5A 7CFA 59CF F7CD BD9A 5920
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=
481
hQIOA6QdEjBs2L/HEAf/TCyrDe5Xnm9esa+Pb/vWF9CUqfn4srzVgSu234
482
REJMVv7lBSrPE2132Lmd2gqF1HeLKDJRSVxJpt6xoWOChGHg+TMyXDxK+N
483
Xl89vGvdU1XfhKkVm9MDLOgT5ECDPysDGHFPDhqHOSu3Kaw2DWMV/iH9vz
484
3Z20erVNbdcvyBnuojcoWO/6yfB5EQO0BXp7kcyy00USA3CjD5FGZdoQGI
485
Tb8A/ar0tVA5crSQmaSotm6KmNLhrFnZ5BxX+TiE+eTUTqSloWRY6VAvqW
486
QHC7OASxK5E6RXPBuFH5IohUA2Qbk5AHt99pYvsIPX88j2rWauOokoiKZo
487
t/9leJ8VxO5l3wf/U64IH8bkPIoWmWZfd/nqh4uwGNbCgKMyT+AnvH7kMJ
488
3i7DivfWl2mKLV0PyPHUNva0VQxX6yYjcOhj1R6fCr/at8/NSLe2OhLchz
489
dC+Ls9h+kvJXgF8Sisv+Wk/1RadPLFmraRlqvJwt6Ww21LpiXqXHV2mIgq
490
WnR98YgSvUi3TJHrUQiNc9YyBzuRo0AjgG2C9qiE3FM+Y28+iQ/sR3+bFs
491
zYuZKVTObqiIslwXu7imO0cvvFRgJF/6u3HNFQ4LUTGhiM3FQmC6NNlF3/
492
vJM2hwRDMcJqDd54Twx90Wh+tYz0z7QMsK4ANXWHHWHR0JchnLWmenzbtW
493
5MHdW9AYsNJZAQSOpirE4Xi31CSlWAi9KV+cUCmWF5zOFy1x23P6PjdaRm
494
4T2zw4dxS5NswXWU0sVEXxjs6PYxuIiCTL7vdpx8QjBkrPWDrAbcMyBr2O
496
host = foo.example.org
501
fingerprint = 3e393aeaefb84c7e89e2f547b3a107558fca3a27
502
secfile = /etc/mandos/bar-secret
504
approved_by_default = False
505
approval_delay = PT30S
238
506
</programlisting>
239
507
</informalexample>
242
<refsect1 id="files">
510
<refsect1 id="see_also">
511
<title>SEE ALSO</title>
245
The file described here is &CONFPATH;
513
<citerefentry><refentrytitle>intro</refentrytitle>
514
<manvolnum>8mandos</manvolnum></citerefentry>,
515
<citerefentry><refentrytitle>mandos-keygen</refentrytitle>
516
<manvolnum>8</manvolnum></citerefentry>,
517
<citerefentry><refentrytitle>mandos.conf</refentrytitle>
518
<manvolnum>5</manvolnum></citerefentry>,
519
<citerefentry><refentrytitle>mandos</refentrytitle>
520
<manvolnum>8</manvolnum></citerefentry>,
521
<citerefentry><refentrytitle>fping</refentrytitle>
522
<manvolnum>8</manvolnum></citerefentry>
527
RFC 3339: <citetitle>Date and Time on the Internet:
528
Timestamps</citetitle>
532
The time intervals are in the "duration" format, as
533
specified in ABNF in Appendix A of RFC 3339.
540
<!-- Local Variables: -->
541
<!-- time-stamp-start: "<!ENTITY TIMESTAMP [\"']" -->
542
<!-- time-stamp-end: "[\"']>" -->
543
<!-- time-stamp-format: "%:y-%02m-%02d" -->