68
58
<refname><filename>&CONFNAME;</filename></refname>
70
Configuration file for Mandos clients
60
Configuration file for the Mandos server
65
<synopsis>&CONFPATH;</synopsis>
80
68
<refsect1 id="description">
81
69
<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>
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 find one, outputs
190
a <option>checker</option> option to check for the
191
client’s 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><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>
315
If present, this option must be set to a string of
316
base64-encoded binary data. It will be decoded and sent
317
to the client matching the above
318
<option>fingerprint</option>. This should, of course, be
319
OpenPGP encrypted data, decryptable only by the client.
320
The program <citerefentry><refentrytitle><command
321
>mandos-keygen</command></refentrytitle><manvolnum
322
>8</manvolnum></citerefentry> can, using its
323
<option>--password</option> option, be used to generate
327
Note: this value of this option will probably be very
328
long. A useful feature to avoid having unreadably-long
329
lines is that a line beginning with white space adds to
330
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>.
377
<refsect1 id="expansion">
378
<title>EXPANSION</title>
380
There are two forms of expansion: Start time expansion and
383
<refsect2 id="start_time_expansion">
384
<title>START TIME EXPANSION</title>
386
Any string in an option value of the form
387
<quote><literal>%(<replaceable>foo</replaceable>)s</literal
388
></quote> will be replaced by the value of the option
389
<varname>foo</varname> either in the same section, or, if it
390
does not exist there, the <literal>[DEFAULT]</literal>
391
section. This is done at start time, when the configuration
395
Note that this means that, in order to include an actual
396
percent character (<quote>%</quote>) in an option value, two
397
percent characters in a row (<quote>%%</quote>) must be
401
<refsect2 id="runtime_expansion">
402
<title>RUNTIME EXPANSION</title>
404
This is currently only done for the <varname>checker</varname>
408
Any string in an option value of the form
409
<quote><literal>%%(<replaceable>foo</replaceable>)s</literal
410
></quote> will be replaced by the value of the attribute
411
<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.
437
Note that this means that, in order to include an actual
438
percent character (<quote>%</quote>) in a
439
<varname>checker</varname> option, <emphasis>four</emphasis>
440
percent characters in a row (<quote>%%%%</quote>) must be
441
entered. Also, a bad format here will lead to an immediate
442
but <emphasis>silent</emphasis> run-time fatal exit; debug
443
mode is needed to expose an error of this kind.
449
<refsect1 id="files">
452
The file described here is &CONFPATH;
459
The format for specifying times for <varname>timeout</varname>
460
and <varname>interval</varname> is not very good.
463
The difference between
464
<literal>%%(<replaceable>foo</replaceable>)s</literal> and
465
<literal>%(<replaceable>foo</replaceable>)s</literal> is
468
<xi:include href="bugs.xml"/>
471
<refsect1 id="example">
472
<title>EXAMPLE</title>
210
473
<informalexample>
215
checker = fping -q -- %%(fqdn)s
478
checker = fping -q -- %%(host)s
218
482
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=
484
hQIOA6QdEjBs2L/HEAf/TCyrDe5Xnm9esa+Pb/vWF9CUqfn4srzVgSu234
485
REJMVv7lBSrPE2132Lmd2gqF1HeLKDJRSVxJpt6xoWOChGHg+TMyXDxK+N
486
Xl89vGvdU1XfhKkVm9MDLOgT5ECDPysDGHFPDhqHOSu3Kaw2DWMV/iH9vz
487
3Z20erVNbdcvyBnuojcoWO/6yfB5EQO0BXp7kcyy00USA3CjD5FGZdoQGI
488
Tb8A/ar0tVA5crSQmaSotm6KmNLhrFnZ5BxX+TiE+eTUTqSloWRY6VAvqW
489
QHC7OASxK5E6RXPBuFH5IohUA2Qbk5AHt99pYvsIPX88j2rWauOokoiKZo
490
t/9leJ8VxO5l3wf/U64IH8bkPIoWmWZfd/nqh4uwGNbCgKMyT+AnvH7kMJ
491
3i7DivfWl2mKLV0PyPHUNva0VQxX6yYjcOhj1R6fCr/at8/NSLe2OhLchz
492
dC+Ls9h+kvJXgF8Sisv+Wk/1RadPLFmraRlqvJwt6Ww21LpiXqXHV2mIgq
493
WnR98YgSvUi3TJHrUQiNc9YyBzuRo0AjgG2C9qiE3FM+Y28+iQ/sR3+bFs
494
zYuZKVTObqiIslwXu7imO0cvvFRgJF/6u3HNFQ4LUTGhiM3FQmC6NNlF3/
495
vJM2hwRDMcJqDd54Twx90Wh+tYz0z7QMsK4ANXWHHWHR0JchnLWmenzbtW
496
5MHdW9AYsNJZAQSOpirE4Xi31CSlWAi9KV+cUCmWF5zOFy1x23P6PjdaRm
497
4T2zw4dxS5NswXWU0sVEXxjs6PYxuIiCTL7vdpx8QjBkrPWDrAbcMyBr2O
499
host = foo.example.org
504
fingerprint = 3e393aeaefb84c7e89e2f547b3a107558fca3a27
505
secfile = /etc/mandos/bar-secret
507
approved_by_default = False
508
approval_delay = PT30S
238
509
</programlisting>
239
510
</informalexample>
242
<refsect1 id="files">
513
<refsect1 id="see_also">
514
<title>SEE ALSO</title>
245
The file described here is &CONFPATH;
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>
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
<!-- Local Variables: -->
544
<!-- time-stamp-start: "<!ENTITY TIMESTAMP [\"']" -->
545
<!-- time-stamp-end: "[\"']>" -->
546
<!-- time-stamp-format: "%:y-%02m-%02d" -->