68
52
<refname><filename>&CONFNAME;</filename></refname>
70
Configuration file for Mandos clients
54
Configuration file for the Mandos server
59
<synopsis>&CONFPATH;</synopsis>
80
62
<refsect1 id="description">
81
63
<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
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
94
<refsect1 id="default">
95
<title>DEFAULTS</title>
97
The paramters for <literal>[DEFAULT]</literal> are:
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:
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>
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>0s</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>.
127
170
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>
171
command that the server will use to check if the client is
172
still up. Any output of the command will be ignored, only
173
the exit code is checked: If the exit code of the command
174
is zero, the client is considered up. The command will be
175
run using <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 a
339
space-separated number of values, each of which is a
340
number and a one-character suffix. The suffix must be one
341
of <quote>d</quote>, <quote>s</quote>, <quote>m</quote>,
342
<quote>h</quote>, and <quote>w</quote> for days, seconds,
343
minutes, hours, and weeks, respectively. The values are
344
added together to give the total time value, so all of
345
<quote><literal>330s</literal></quote>,
346
<quote><literal>110s 110s 110s</literal></quote>, and
347
<quote><literal>5m 30s</literal></quote> will give a value
348
of five minutes and thirty seconds.
354
<term><option>enabled<literal> = </literal>{ <literal
355
>1</literal> | <literal>yes</literal> | <literal>true</literal
356
> | <literal >on</literal> | <literal>0</literal> | <literal
357
>no</literal> | <literal>false</literal> | <literal
358
>off</literal> }</option></term>
361
Whether this client should be enabled by default. The
362
default is <quote>true</quote>.
370
<refsect1 id="expansion">
371
<title>EXPANSION</title>
373
There are two forms of expansion: Start time expansion and
376
<refsect2 id="start_time_expansion">
377
<title>START TIME EXPANSION</title>
379
Any string in an option value of the form
380
<quote><literal>%(<replaceable>foo</replaceable>)s</literal
381
></quote> will be replaced by the value of the option
382
<varname>foo</varname> either in the same section, or, if it
383
does not exist there, the <literal>[DEFAULT]</literal>
384
section. This is done at start time, when the configuration
388
Note that this means that, in order to include an actual
389
percent character (<quote>%</quote>) in an option value, two
390
percent characters in a row (<quote>%%</quote>) must be
394
<refsect2 id="runtime_expansion">
395
<title>RUNTIME EXPANSION</title>
397
This is currently only done for the <varname>checker</varname>
401
Any string in an option value of the form
402
<quote><literal>%%(<replaceable>foo</replaceable>)s</literal
403
></quote> will be replaced by the value of the attribute
404
<varname>foo</varname> of the internal
405
<quote><classname>Client</classname></quote> object in the
406
Mandos server. The currently allowed values for
407
<replaceable>foo</replaceable> are:
408
<quote><literal>approval_delay</literal></quote>,
409
<quote><literal>approval_duration</literal></quote>,
410
<quote><literal>created</literal></quote>,
411
<quote><literal>enabled</literal></quote>,
412
<quote><literal>expires</literal></quote>,
413
<quote><literal>fingerprint</literal></quote>,
414
<quote><literal>host</literal></quote>,
415
<quote><literal>interval</literal></quote>,
416
<quote><literal>last_approval_request</literal></quote>,
417
<quote><literal>last_checked_ok</literal></quote>,
418
<quote><literal>last_enabled</literal></quote>,
419
<quote><literal>name</literal></quote>,
420
<quote><literal>timeout</literal></quote>, and, if using
421
D-Bus, <quote><literal>dbus_object_path</literal></quote>.
422
See the source code for details. <emphasis role="strong"
423
>Currently, <emphasis>none</emphasis> of these attributes
424
except <quote><literal>host</literal></quote> are guaranteed
425
to be valid in future versions.</emphasis> Therefore, please
426
let the authors know of any attributes that are useful so they
427
may be preserved to any new versions of this software.
430
Note that this means that, in order to include an actual
431
percent character (<quote>%</quote>) in a
432
<varname>checker</varname> option, <emphasis>four</emphasis>
433
percent characters in a row (<quote>%%%%</quote>) must be
434
entered. Also, a bad format here will lead to an immediate
435
but <emphasis>silent</emphasis> run-time fatal exit; debug
436
mode is needed to expose an error of this kind.
442
<refsect1 id="files">
445
The file described here is &CONFPATH;
452
The format for specifying times for <varname>timeout</varname>
453
and <varname>interval</varname> is not very good.
456
The difference between
457
<literal>%%(<replaceable>foo</replaceable>)s</literal> and
458
<literal>%(<replaceable>foo</replaceable>)s</literal> is
463
<refsect1 id="example">
464
<title>EXAMPLE</title>
210
465
<informalexample>
215
checker = fping -q -- %%(fqdn)s
470
checker = fping -q -- %%(host)s
218
474
fingerprint = 7788 2722 5BA7 DE53 9C5A 7CFA 59CF F7CD BD9A 5920
221
476
hQIOA6QdEjBs2L/HEAf/TCyrDe5Xnm9esa+Pb/vWF9CUqfn4srzVgSu234
222
477
REJMVv7lBSrPE2132Lmd2gqF1HeLKDJRSVxJpt6xoWOChGHg+TMyXDxK+N