52
68
<refname><filename>&CONFNAME;</filename></refname>
54
Configuration file for the Mandos server
70
Configuration file for Mandos clients
59
<synopsis>&CONFPATH;</synopsis>
62
80
<refsect1 id="description">
63
81
<title>DESCRIPTION</title>
65
The file &CONFPATH; is a configuration file for <citerefentry
66
><refentrytitle>mandos</refentrytitle>
67
<manvolnum>8</manvolnum></citerefentry>, read by it at startup.
68
The file needs to list all clients that should be able to use
69
the service. The settings in this file can be overridden by
70
runtime changes to the server, which it saves across restarts.
71
(See the section called <quote>PERSISTENT STATE</quote> in
72
<citerefentry><refentrytitle>mandos</refentrytitle><manvolnum
73
>8</manvolnum></citerefentry>.) However, any <emphasis
74
>changes</emphasis> to this file (including adding and removing
75
clients) will, at startup, override changes done during runtime.
78
The format starts with a <literal>[<replaceable>section
79
header</replaceable>]</literal> which is either
80
<literal>[DEFAULT]</literal> or <literal>[<replaceable>client
81
name</replaceable>]</literal>. The <replaceable>client
82
name</replaceable> can be anything, and is not tied to a host
83
name. Following the section header is any number of
84
<quote><varname><replaceable>option</replaceable
85
></varname>=<replaceable>value</replaceable></quote> entries,
86
with continuations in the style of RFC 822. <quote><varname
87
><replaceable>option</replaceable></varname>: <replaceable
88
>value</replaceable></quote> is also accepted. Note that
89
leading whitespace is removed from values. Values can contain
90
format strings which refer to other values in the same section,
91
or values in the <quote>DEFAULT</quote> section (see <xref
92
linkend="expansion"/>). Lines beginning with <quote>#</quote>
93
or <quote>;</quote> are ignored and may be used to provide
98
<refsect1 id="options">
99
<title>OPTIONS</title>
101
<emphasis>Note:</emphasis> all option values are subject to
102
start time expansion, see <xref linkend="expansion"/>.
105
Unknown options are ignored. The used options are as follows:
111
<term><option>approval_delay<literal> = </literal><replaceable
112
>TIME</replaceable></option></term>
115
This option is <emphasis>optional</emphasis>.
118
How long to wait for external approval before resorting to
119
use the <option>approved_by_default</option> value. The
120
default is <quote>PT0S</quote>, i.e. not to wait.
123
The format of <replaceable>TIME</replaceable> is the same
124
as for <varname>timeout</varname> below.
130
<term><option>approval_duration<literal> = </literal
131
><replaceable>TIME</replaceable></option></term>
134
This option is <emphasis>optional</emphasis>.
137
How long an external approval lasts. The default is 1
141
The format of <replaceable>TIME</replaceable> is the same
142
as for <varname>timeout</varname> below.
148
<term><option>approved_by_default<literal> = </literal
149
>{ <literal >1</literal> | <literal>yes</literal> | <literal
150
>true</literal> | <literal>on</literal> | <literal
151
>0</literal> | <literal>no</literal> | <literal
152
>false</literal> | <literal>off</literal> }</option></term>
155
Whether to approve a client by default after
156
the <option>approval_delay</option>. The default
157
is <quote>True</quote>.
163
<term><option>checker<literal> = </literal><replaceable
164
>COMMAND</replaceable></option></term>
167
This option is <emphasis>optional</emphasis>.
170
This option overrides the default shell command that the
171
server will use to check if the client is still up. Any
172
output of the command will be ignored, only the exit code
173
is checked: If the exit code of the command is zero, the
174
client is considered up. The command will be run using
175
<quote><command><filename>/bin/sh</filename>
176
<option>-c</option></command></quote>, so
177
<varname>PATH</varname> will be searched. The default
178
value for the checker command is <quote><literal
179
><command>fping</command> <option>-q</option> <option
180
>--</option> %%(host)s</literal></quote>.
183
In addition to normal start time expansion, this option
184
will also be subject to runtime expansion; see <xref
185
linkend="expansion"/>.
191
<term><option>extended_timeout<literal> = </literal><replaceable
192
>TIME</replaceable></option></term>
195
This option is <emphasis>optional</emphasis>.
198
Extended timeout is an added timeout that is given once
199
after a password has been sent successfully to a client.
200
The timeout is by default longer than the normal timeout,
201
and is used for handling the extra long downtime while a
202
machine is booting up. Time to take into consideration
203
when changing this value is file system checks and quota
204
checks. The default value is 15 minutes.
207
The format of <replaceable>TIME</replaceable> is the same
208
as for <varname>timeout</varname> below.
214
<term><option>fingerprint<literal> = </literal
215
><replaceable>HEXSTRING</replaceable></option></term>
218
This option is <emphasis>required</emphasis>.
221
This option sets the OpenPGP fingerprint that identifies
222
the public key that clients authenticate themselves with
223
through TLS. The string needs to be in hexidecimal form,
224
but spaces or upper/lower case are not significant.
230
<term><option><literal>host = </literal><replaceable
231
>STRING</replaceable></option></term>
234
This option is <emphasis>optional</emphasis>, but highly
235
<emphasis>recommended</emphasis> unless the
236
<option>checker</option> option is modified to a
237
non-standard value without <quote>%%(host)s</quote> in it.
240
Host name for this client. This is not used by the server
241
directly, but can be, and is by default, used by the
242
checker. See the <option>checker</option> option.
248
<term><option>interval<literal> = </literal><replaceable
249
>TIME</replaceable></option></term>
252
This option is <emphasis>optional</emphasis>.
255
How often to run the checker to confirm that a client is
256
still up. <emphasis>Note:</emphasis> a new checker will
257
not be started if an old one is still running. The server
258
will wait for a checker to complete until the below
259
<quote><varname>timeout</varname></quote> occurs, at which
260
time the client will be disabled, and any running checker
261
killed. The default interval is 2 minutes.
264
The format of <replaceable>TIME</replaceable> is the same
265
as for <varname>timeout</varname> below.
271
<term><option>secfile<literal> = </literal><replaceable
272
>FILENAME</replaceable></option></term>
275
This option is only used if <option>secret</option> is not
276
specified, in which case this option is
277
<emphasis>required</emphasis>.
280
Similar to the <option>secret</option>, except the secret
281
data is in an external file. The contents of the file
282
should <emphasis>not</emphasis> be base64-encoded, but
283
will be sent to clients verbatim.
286
File names of the form <filename>~user/foo/bar</filename>
287
and <filename>$<envar>ENVVAR</envar>/foo/bar</filename>
294
<term><option>secret<literal> = </literal><replaceable
295
>BASE64_ENCODED_DATA</replaceable></option></term>
298
If this option is not specified, the <option
299
>secfile</option> option is <emphasis>required</emphasis>
303
If present, this option must be set to a string of
304
base64-encoded binary data. It will be decoded and sent
305
to the client matching the above
306
<option>fingerprint</option>. This should, of course, be
307
OpenPGP encrypted data, decryptable only by the client.
308
The program <citerefentry><refentrytitle><command
309
>mandos-keygen</command></refentrytitle><manvolnum
310
>8</manvolnum></citerefentry> can, using its
311
<option>--password</option> option, be used to generate
315
Note: this value of this option will probably be very
316
long. A useful feature to avoid having unreadably-long
317
lines is that a line beginning with white space adds to
318
the value of the previous line, RFC 822-style.
324
<term><option>timeout<literal> = </literal><replaceable
325
>TIME</replaceable></option></term>
328
This option is <emphasis>optional</emphasis>.
331
The timeout is how long the server will wait, after a
332
successful checker run, until a client is disabled and not
333
allowed to get the data this server holds. By default
334
Mandos will use 5 minutes. See also the
335
<option>extended_timeout</option> option.
338
The <replaceable>TIME</replaceable> is specified as an RFC
339
3339 duration; for example
340
<quote><literal>P1Y2M3DT4H5M6S</literal></quote> meaning
341
one year, two months, three days, four hours, five
342
minutes, and six seconds. Some values can be omitted, see
343
RFC 3339 Appendix A for details.
349
<term><option>enabled<literal> = </literal>{ <literal
350
>1</literal> | <literal>yes</literal> | <literal>true</literal
351
> | <literal >on</literal> | <literal>0</literal> | <literal
352
>no</literal> | <literal>false</literal> | <literal
353
>off</literal> }</option></term>
356
Whether this client should be enabled by default. The
357
default is <quote>true</quote>.
365
<refsect1 id="expansion">
366
<title>EXPANSION</title>
368
There are two forms of expansion: Start time expansion and
371
<refsect2 id="start_time_expansion">
372
<title>START TIME EXPANSION</title>
374
Any string in an option value of the form
375
<quote><literal>%(<replaceable>foo</replaceable>)s</literal
376
></quote> will be replaced by the value of the option
377
<varname>foo</varname> either in the same section, or, if it
378
does not exist there, the <literal>[DEFAULT]</literal>
379
section. This is done at start time, when the configuration
383
Note that this means that, in order to include an actual
384
percent character (<quote>%</quote>) in an option value, two
385
percent characters in a row (<quote>%%</quote>) must be
389
<refsect2 id="runtime_expansion">
390
<title>RUNTIME EXPANSION</title>
392
This is currently only done for the <varname>checker</varname>
396
Any string in an option value of the form
397
<quote><literal>%%(<replaceable>foo</replaceable>)s</literal
398
></quote> will be replaced by the value of the attribute
399
<varname>foo</varname> of the internal
400
<quote><classname>Client</classname></quote> object in the
401
Mandos server. The currently allowed values for
402
<replaceable>foo</replaceable> are:
403
<quote><literal>approval_delay</literal></quote>,
404
<quote><literal>approval_duration</literal></quote>,
405
<quote><literal>created</literal></quote>,
406
<quote><literal>enabled</literal></quote>,
407
<quote><literal>expires</literal></quote>,
408
<quote><literal>fingerprint</literal></quote>,
409
<quote><literal>host</literal></quote>,
410
<quote><literal>interval</literal></quote>,
411
<quote><literal>last_approval_request</literal></quote>,
412
<quote><literal>last_checked_ok</literal></quote>,
413
<quote><literal>last_enabled</literal></quote>,
414
<quote><literal>name</literal></quote>,
415
<quote><literal>timeout</literal></quote>, and, if using
416
D-Bus, <quote><literal>dbus_object_path</literal></quote>.
417
See the source code for details. <emphasis role="strong"
418
>Currently, <emphasis>none</emphasis> of these attributes
419
except <quote><literal>host</literal></quote> are guaranteed
420
to be valid in future versions.</emphasis> Therefore, please
421
let the authors know of any attributes that are useful so they
422
may be preserved to any new versions of this software.
425
Note that this means that, in order to include an actual
426
percent character (<quote>%</quote>) in a
427
<varname>checker</varname> option, <emphasis>four</emphasis>
428
percent characters in a row (<quote>%%%%</quote>) must be
429
entered. Also, a bad format here will lead to an immediate
430
but <emphasis>silent</emphasis> run-time fatal exit; debug
431
mode is needed to expose an error of this kind.
437
<refsect1 id="files">
440
The file described here is &CONFPATH;
447
The format for specifying times for <varname>timeout</varname>
448
and <varname>interval</varname> is not very good.
451
The difference between
452
<literal>%%(<replaceable>foo</replaceable>)s</literal> and
453
<literal>%(<replaceable>foo</replaceable>)s</literal> is
458
<refsect1 id="example">
459
<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>DEFAULTS</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 a
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>
460
210
<informalexample>
465
checker = fping -q -- %%(host)s
215
checker = fping -q -- %%(fqdn)s
469
218
fingerprint = 7788 2722 5BA7 DE53 9C5A 7CFA 59CF F7CD BD9A 5920
471
221
hQIOA6QdEjBs2L/HEAf/TCyrDe5Xnm9esa+Pb/vWF9CUqfn4srzVgSu234
472
222
REJMVv7lBSrPE2132Lmd2gqF1HeLKDJRSVxJpt6xoWOChGHg+TMyXDxK+N