111
105
<refsect1 id="options">
112
106
<title>OPTIONS</title>
114
The possible options are:
108
<emphasis>Note:</emphasis> all option values are subject to
109
start time expansion, see <xref linkend="expansion"/>.
112
Unknown options are ignored. The used options are as follows:
120
<term><literal><varname>timeout</varname></literal></term>
122
<synopsis><literal>timeout = </literal><replaceable
126
The timeout is how long the server will wait for a
127
successful checker run until a client is considered
128
invalid - that is, ineligible to get the data this server
129
holds. By default Mandos will use 1 hour.
132
The <replaceable>TIME</replaceable> is specified as a
133
space-separated number of values, each of which is a
134
number and a one-character suffix. The suffix must be one
135
of <quote>d</quote>, <quote>s</quote>, <quote>m</quote>,
136
<quote>h</quote>, and <quote>w</quote> for days, seconds,
137
minutes, hours, and weeks, respectively. The values are
138
added together to give the total time value, so all of
139
<quote><literal>330s</literal></quote>,
140
<quote><literal>110s 110s 110s</literal></quote>, and
141
<quote><literal>5m 30s</literal></quote> will give a value
142
of five minutes and thirty seconds.
148
<term><literal><varname>interval</varname></literal></term>
150
<synopsis><literal>interval = </literal><replaceable
118
<term><option>approval_delay<literal> = </literal><replaceable
119
>TIME</replaceable></option></term>
122
This option is <emphasis>optional</emphasis>.
125
How long to wait for external approval before resorting to
126
use the <option>approved_by_default</option> value. The
127
default is <quote>PT0S</quote>, i.e. not to wait.
130
The format of <replaceable>TIME</replaceable> is the same
131
as for <varname>timeout</varname> below.
137
<term><option>approval_duration<literal> = </literal
138
><replaceable>TIME</replaceable></option></term>
141
This option is <emphasis>optional</emphasis>.
144
How long an external approval lasts. The default is 1
148
The format of <replaceable>TIME</replaceable> is the same
149
as for <varname>timeout</varname> below.
155
<term><option>approved_by_default<literal> = </literal
156
>{ <literal >1</literal> | <literal>yes</literal> | <literal
157
>true</literal> | <literal>on</literal> | <literal
158
>0</literal> | <literal>no</literal> | <literal
159
>false</literal> | <literal>off</literal> }</option></term>
162
Whether to approve a client by default after
163
the <option>approval_delay</option>. The default
164
is <quote>True</quote>.
170
<term><option>checker<literal> = </literal><replaceable
171
>COMMAND</replaceable></option></term>
174
This option is <emphasis>optional</emphasis>.
177
This option overrides the default shell command that the
178
server will use to check if the client is still up. Any
179
output of the command will be ignored, only the exit code
180
is checked: If the exit code of the command is zero, the
181
client is considered up. The command will be run using
182
<quote><command><filename>/bin/sh</filename>
183
<option>-c</option></command></quote>, so
184
<varname>PATH</varname> will be searched. The default
185
value for the checker command is <quote><literal
186
><command>fping</command> <option>-q</option> <option
187
>--</option> %%(host)s</literal></quote>. Note that
188
<command>mandos-keygen</command>, when generating output
189
to be inserted into this file, normally looks for an SSH
190
server on the Mandos client, and, if it finds one, outputs
191
a <option>checker</option> option to check for the
192
client’s SSH key fingerprint – this is more secure against
196
In addition to normal start time expansion, this option
197
will also be subject to runtime expansion; see <xref
198
linkend="expansion"/>.
204
<term><option>extended_timeout<literal> = </literal><replaceable
205
>TIME</replaceable></option></term>
208
This option is <emphasis>optional</emphasis>.
211
Extended timeout is an added timeout that is given once
212
after a password has been sent successfully to a client.
213
The timeout is by default longer than the normal timeout,
214
and is used for handling the extra long downtime while a
215
machine is booting up. Time to take into consideration
216
when changing this value is file system checks and quota
217
checks. The default value is 15 minutes.
220
The format of <replaceable>TIME</replaceable> is the same
221
as for <varname>timeout</varname> below.
227
<term><option>fingerprint<literal> = </literal
228
><replaceable>HEXSTRING</replaceable></option></term>
231
This option is <emphasis>required</emphasis> if the
232
<option>key_id</option> is not set, and
233
<emphasis>optional</emphasis> otherwise.
236
This option sets the OpenPGP fingerprint that (before
237
GnuTLS 3.6.0) identified the public key that clients
238
authenticate themselves with through TLS. The string
239
needs to be in hexadecimal form, but spaces or upper/lower
240
case are not significant.
246
<term><option>key_id<literal> = </literal
247
><replaceable>HEXSTRING</replaceable></option></term>
250
This option is <emphasis>required</emphasis> if the
251
<option>fingerprint</option> is not set, and
252
<emphasis>optional</emphasis> otherwise.
255
This option sets the certificate key ID that (with GnuTLS
256
3.6.6 or later) identifies the public key that clients
257
authenticate themselves with through TLS. The string
258
needs to be in hexadecimal form, but spaces or upper/lower
259
case are not significant.
265
<term><option><literal>host = </literal><replaceable
266
>STRING</replaceable></option></term>
269
This option is <emphasis>optional</emphasis>, but highly
270
<emphasis>recommended</emphasis> unless the
271
<option>checker</option> option is modified to a
272
non-standard value without <quote>%%(host)s</quote> in it.
275
Host name for this client. This is not used by the server
276
directly, but can be, and is by default, used by the
277
checker. See the <option>checker</option> option.
283
<term><option>interval<literal> = </literal><replaceable
284
>TIME</replaceable></option></term>
287
This option is <emphasis>optional</emphasis>.
154
290
How often to run the checker to confirm that a client is
155
291
still up. <emphasis>Note:</emphasis> a new checker will
156
292
not be started if an old one is still running. The server
157
will wait for a checker to complete until the above
293
will wait for a checker to complete until the below
158
294
<quote><varname>timeout</varname></quote> occurs, at which
159
time the client will be marked invalid, and any running
160
checker killed. The default interval is 5 minutes.
295
time the client will be disabled, and any running checker
296
killed. The default interval is 2 minutes.
163
299
The format of <replaceable>TIME</replaceable> is the same
164
as for <varname>timeout</varname> above.
170
<term><literal>checker</literal></term>
172
<synopsis><literal>checker = </literal><replaceable
173
>COMMAND</replaceable>
176
This option allows you to override the default shell
177
command that the server will use to check if the client is
178
still up. The output of the command will be ignored, only
179
the exit code is checked. The command will be run using
180
<quote><command><filename>/bin/sh</filename>
181
<option>-c</option></command></quote>. The default
182
command is <quote><literal><command>fping</command>
183
<option>-q</option> <option>--</option>
184
%(host)s</literal></quote>.
187
In addition to normal start time expansion, this option
188
will also be subject to runtime expansion; see <xref
189
linkend="expansion"/>.
195
<term><literal>fingerprint</literal></term>
197
<synopsis><literal>fingerprint = </literal><replaceable
198
>HEXSTRING</replaceable>
201
This option sets the OpenPGP fingerprint that identifies
202
the public key that clients authenticate themselves with
203
through TLS. The string needs to be in hexidecimal form,
204
but spaces or upper/lower case are not significant.
210
<term><literal>secret</literal></term>
212
<synopsis><literal>secret = </literal><replaceable
213
>BASE64_ENCODED_DATA</replaceable>
300
as for <varname>timeout</varname> below.
306
<term><option>secfile<literal> = </literal><replaceable
307
>FILENAME</replaceable></option></term>
310
This option is only used if <option>secret</option> is not
311
specified, in which case this option is
312
<emphasis>required</emphasis>.
315
Similar to the <option>secret</option>, except the secret
316
data is in an external file. The contents of the file
317
should <emphasis>not</emphasis> be base64-encoded, but
318
will be sent to clients verbatim.
321
File names of the form <filename>~user/foo/bar</filename>
322
and <filename>$<envar>ENVVAR</envar>/foo/bar</filename>
329
<term><option>secret<literal> = </literal><replaceable
330
>BASE64_ENCODED_DATA</replaceable></option></term>
333
If this option is not specified, the <option
334
>secfile</option> option is <emphasis>required</emphasis>
216
338
If present, this option must be set to a string of
217
339
base64-encoded binary data. It will be decoded and sent
218
to the client matching the above
219
<option>fingerprint</option>. This should, of course, be
220
OpenPGP encrypted data, decryptable only by the client.
221
<!-- The program <citerefentry><refentrytitle><command -->
222
<!-- >mandos-keygen</command></refentrytitle><manvolnum -->
223
<!-- >8</manvolnum></citerefentry> can be used to generate it, -->
227
Note: this value of this option will probably run over
228
many lines, and will then have to use the fact that a line
229
beginning with white space adds to the value of the
230
previous line, RFC 822-style.
236
<term><literal>secfile</literal></term>
239
Base 64 encoded OpenPGP encrypted password encrypted by
240
the clients openpgp certificate as a binary file.
246
<term><literal>host</literal></term>
249
Host name that can be used in for checking that the client is up.
255
<term><literal>checker</literal></term>
258
Shell command that the server will use to check up if a
265
<term><literal>timeout</literal></term>
268
Duration that a client can be down whitout be removed from
340
to the client matching the above <option>key_id</option>
341
or <option>fingerprint</option>. This should, of course,
342
be OpenPGP encrypted data, decryptable only by the client.
343
The program <citerefentry><refentrytitle><command
344
>mandos-keygen</command></refentrytitle><manvolnum
345
>8</manvolnum></citerefentry> can, using its
346
<option>--password</option> option, be used to generate
350
Note: this value of this option will probably be very
351
long. A useful feature to avoid having unreadably-long
352
lines is that a line beginning with white space adds to
353
the value of the previous line, RFC 822-style.
359
<term><option>timeout<literal> = </literal><replaceable
360
>TIME</replaceable></option></term>
363
This option is <emphasis>optional</emphasis>.
366
The timeout is how long the server will wait, after a
367
successful checker run, until a client is disabled and not
368
allowed to get the data this server holds. By default
369
Mandos will use 5 minutes. See also the
370
<option>extended_timeout</option> option.
373
The <replaceable>TIME</replaceable> is specified as an RFC
374
3339 duration; for example
375
<quote><literal>P1Y2M3DT4H5M6S</literal></quote> meaning
376
one year, two months, three days, four hours, five
377
minutes, and six seconds. Some values can be omitted, see
378
RFC 3339 Appendix A for details.
384
<term><option>enabled<literal> = </literal>{ <literal
385
>1</literal> | <literal>yes</literal> | <literal>true</literal
386
> | <literal >on</literal> | <literal>0</literal> | <literal
387
>no</literal> | <literal>false</literal> | <literal
388
>off</literal> }</option></term>
391
Whether this client should be enabled by default. The
392
default is <quote>true</quote>.
277
400
<refsect1 id="expansion">
278
401
<title>EXPANSION</title>
309
432
<quote><literal>%%(<replaceable>foo</replaceable>)s</literal
310
433
></quote> will be replaced by the value of the attribute
311
434
<varname>foo</varname> of the internal
312
<quote><classname>Client</classname></quote> object. See the
313
source code for details, and let the authors know of any
314
attributes that are useful so they may be preserved to any new
315
versions of this software.
435
<quote><classname>Client</classname></quote> object in the
436
Mandos server. The currently allowed values for
437
<replaceable>foo</replaceable> are:
438
<quote><literal>approval_delay</literal></quote>,
439
<quote><literal>approval_duration</literal></quote>,
440
<quote><literal>created</literal></quote>,
441
<quote><literal>enabled</literal></quote>,
442
<quote><literal>expires</literal></quote>,
443
<quote><literal>key_id</literal></quote>,
444
<quote><literal>fingerprint</literal></quote>,
445
<quote><literal>host</literal></quote>,
446
<quote><literal>interval</literal></quote>,
447
<quote><literal>last_approval_request</literal></quote>,
448
<quote><literal>last_checked_ok</literal></quote>,
449
<quote><literal>last_enabled</literal></quote>,
450
<quote><literal>name</literal></quote>,
451
<quote><literal>timeout</literal></quote>, and, if using
452
D-Bus, <quote><literal>dbus_object_path</literal></quote>.
453
See the source code for details. <emphasis role="strong"
454
>Currently, <emphasis>none</emphasis> of these attributes
455
except <quote><literal>host</literal></quote> are guaranteed
456
to be valid in future versions.</emphasis> Therefore, please
457
let the authors know of any attributes that are useful so they
458
may be preserved to any new versions of this software.
318
461
Note that this means that, in order to include an actual
319
462
percent character (<quote>%</quote>) in a
320
<varname>checker</varname> options, <emphasis>four</emphasis>
463
<varname>checker</varname> option, <emphasis>four</emphasis>
321
464
percent characters in a row (<quote>%%%%</quote>) must be
322
465
entered. Also, a bad format here will lead to an immediate
323
466
but <emphasis>silent</emphasis> run-time fatal exit; debug
324
mode is needed to track down an error of this kind.
467
mode is needed to expose an error of this kind.
330
473
<refsect1 id="files">
331
474
<title>FILES</title>