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  • Committer: Teddy Hogeborn
  • Date: 2013-10-20 23:27:38 UTC
  • mto: (237.7.272 trunk)
  • mto: This revision was merged to the branch mainline in revision 305.
  • Revision ID: teddy@recompile.se-20131020232738-5gjw6auqqxnp4v7t
* mandos (PGPEngine.password_encode): Bug fix: GnuPG can't handle
                                      really long passphrases - encode
                                      those differently.

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mandos.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY VERSION "1.0">
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<!ENTITY COMMANDNAME "mandos">
 
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<!ENTITY TIMESTAMP "2013-10-20">
 
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<!ENTITY % common SYSTEM "common.ent">
 
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%common;
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]>
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<refentry xmlns:xi="http://www.w3.org/2001/XInclude">
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  <refentryinfo>
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    <title>&COMMANDNAME;</title>
 
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   <refentryinfo>
 
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    <title>Mandos Manual</title>
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    <!-- NWalsh’s docbook scripts use this to generate the footer: -->
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    <productname>&COMMANDNAME;</productname>
13
 
    <productnumber>&VERSION;</productnumber>
 
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    <productname>Mandos</productname>
 
15
    <productnumber>&version;</productnumber>
 
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    <date>&TIMESTAMP;</date>
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    <authorgroup>
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      <author>
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        <firstname>Björn</firstname>
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        <surname>Påhlsson</surname>
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        <address>
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          <email>belorn@fukt.bsnet.se</email>
 
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          <email>belorn@recompile.se</email>
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        </address>
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      </author>
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      <author>
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        <firstname>Teddy</firstname>
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        <surname>Hogeborn</surname>
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        <address>
26
 
          <email>teddy@fukt.bsnet.se</email>
 
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          <email>teddy@recompile.se</email>
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        </address>
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      </author>
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    </authorgroup>
30
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    <copyright>
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      <year>2008</year>
 
35
      <year>2009</year>
 
36
      <year>2010</year>
 
37
      <year>2011</year>
 
38
      <year>2012</year>
 
39
      <year>2013</year>
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      <holder>Teddy Hogeborn</holder>
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      <holder>Björn Påhlsson</holder>
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    </copyright>
35
 
    <legalnotice>
36
 
      <para>
37
 
        This manual page is free software: you can redistribute it
38
 
        and/or modify it under the terms of the GNU General Public
39
 
        License as published by the Free Software Foundation,
40
 
        either version 3 of the License, or (at your option) any
41
 
        later version.
42
 
      </para>
43
 
 
44
 
      <para>
45
 
        This manual page is distributed in the hope that it will
46
 
        be useful, but WITHOUT ANY WARRANTY; without even the
47
 
        implied warranty of MERCHANTABILITY or FITNESS FOR A
48
 
        PARTICULAR PURPOSE.  See the GNU General Public License
49
 
        for more details.
50
 
      </para>
51
 
 
52
 
      <para>
53
 
        You should have received a copy of the GNU General Public
54
 
        License along with this program; If not, see
55
 
        <ulink url="http://www.gnu.org/licenses/"/>.
56
 
      </para>
57
 
    </legalnotice>
 
43
    <xi:include href="legalnotice.xml"/>
58
44
  </refentryinfo>
59
 
 
 
45
  
60
46
  <refmeta>
61
47
    <refentrytitle>&COMMANDNAME;</refentrytitle>
62
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    <manvolnum>8</manvolnum>
65
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  <refnamediv>
66
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    <refname><command>&COMMANDNAME;</command></refname>
67
53
    <refpurpose>
68
 
      Sends encrypted passwords to authenticated Mandos clients
 
54
      Gives encrypted passwords to authenticated Mandos clients
69
55
    </refpurpose>
70
56
  </refnamediv>
71
 
 
 
57
  
72
58
  <refsynopsisdiv>
73
59
    <cmdsynopsis>
74
60
      <command>&COMMANDNAME;</command>
75
 
      <arg>--interface<arg choice="plain">IF</arg></arg>
76
 
      <arg>--address<arg choice="plain">ADDRESS</arg></arg>
77
 
      <arg>--port<arg choice="plain">PORT</arg></arg>
78
 
      <arg>--priority<arg choice="plain">PRIORITY</arg></arg>
79
 
      <arg>--servicename<arg choice="plain">NAME</arg></arg>
80
 
      <arg>--configdir<arg choice="plain">DIRECTORY</arg></arg>
81
 
      <arg>--debug</arg>
82
 
    </cmdsynopsis>
83
 
    <cmdsynopsis>
84
 
      <command>&COMMANDNAME;</command>
85
 
      <arg>-i<arg choice="plain">IF</arg></arg>
86
 
      <arg>-a<arg choice="plain">ADDRESS</arg></arg>
87
 
      <arg>-p<arg choice="plain">PORT</arg></arg>
88
 
      <arg>--priority<arg choice="plain">PRIORITY</arg></arg>
89
 
      <arg>--servicename<arg choice="plain">NAME</arg></arg>
90
 
      <arg>--configdir<arg choice="plain">DIRECTORY</arg></arg>
91
 
      <arg>--debug</arg>
 
61
      <group>
 
62
        <arg choice="plain"><option>--interface
 
63
        <replaceable>NAME</replaceable></option></arg>
 
64
        <arg choice="plain"><option>-i
 
65
        <replaceable>NAME</replaceable></option></arg>
 
66
      </group>
 
67
      <sbr/>
 
68
      <group>
 
69
        <arg choice="plain"><option>--address
 
70
        <replaceable>ADDRESS</replaceable></option></arg>
 
71
        <arg choice="plain"><option>-a
 
72
        <replaceable>ADDRESS</replaceable></option></arg>
 
73
      </group>
 
74
      <sbr/>
 
75
      <group>
 
76
        <arg choice="plain"><option>--port
 
77
        <replaceable>PORT</replaceable></option></arg>
 
78
        <arg choice="plain"><option>-p
 
79
        <replaceable>PORT</replaceable></option></arg>
 
80
      </group>
 
81
      <sbr/>
 
82
      <arg><option>--priority
 
83
      <replaceable>PRIORITY</replaceable></option></arg>
 
84
      <sbr/>
 
85
      <arg><option>--servicename
 
86
      <replaceable>NAME</replaceable></option></arg>
 
87
      <sbr/>
 
88
      <arg><option>--configdir
 
89
      <replaceable>DIRECTORY</replaceable></option></arg>
 
90
      <sbr/>
 
91
      <arg><option>--debug</option></arg>
 
92
      <sbr/>
 
93
      <arg><option>--debuglevel
 
94
      <replaceable>LEVEL</replaceable></option></arg>
 
95
      <sbr/>
 
96
      <arg><option>--no-dbus</option></arg>
 
97
      <sbr/>
 
98
      <arg><option>--no-ipv6</option></arg>
 
99
      <sbr/>
 
100
      <arg><option>--no-restore</option></arg>
 
101
      <sbr/>
 
102
      <arg><option>--statedir
 
103
      <replaceable>DIRECTORY</replaceable></option></arg>
 
104
      <sbr/>
 
105
      <arg><option>--socket
 
106
      <replaceable>FD</replaceable></option></arg>
 
107
      <sbr/>
 
108
      <arg><option>--foreground</option></arg>
92
109
    </cmdsynopsis>
93
110
    <cmdsynopsis>
94
111
      <command>&COMMANDNAME;</command>
95
112
      <group choice="req">
96
 
        <arg choice="plain">-h</arg>
97
 
        <arg choice="plain">--help</arg>
 
113
        <arg choice="plain"><option>--help</option></arg>
 
114
        <arg choice="plain"><option>-h</option></arg>
98
115
      </group>
99
116
    </cmdsynopsis>
100
117
    <cmdsynopsis>
101
118
      <command>&COMMANDNAME;</command>
102
 
      <arg choice="plain">--version</arg>
 
119
      <arg choice="plain"><option>--version</option></arg>
103
120
    </cmdsynopsis>
104
121
    <cmdsynopsis>
105
122
      <command>&COMMANDNAME;</command>
106
 
      <arg choice="plain">--check</arg>
 
123
      <arg choice="plain"><option>--check</option></arg>
107
124
    </cmdsynopsis>
108
125
  </refsynopsisdiv>
109
 
 
 
126
  
110
127
  <refsect1 id="description">
111
128
    <title>DESCRIPTION</title>
112
129
    <para>
113
130
      <command>&COMMANDNAME;</command> is a server daemon which
114
131
      handles incoming request for passwords for a pre-defined list of
115
 
      client host computers.  The Mandos server uses Zeroconf to
116
 
      announce itself on the local network, and uses TLS to
117
 
      communicate securely with and to authenticate the clients.  The
118
 
      Mandos server uses IPv6 to allow Mandos clients to use IPv6
119
 
      link-local addresses, since the clients will probably not have
120
 
      any other addresses configured (see <xref linkend="overview"/>).
121
 
      Any authenticated client is then given the stored pre-encrypted
122
 
      password for that specific client.
 
132
      client host computers. For an introduction, see
 
133
      <citerefentry><refentrytitle>intro</refentrytitle>
 
134
      <manvolnum>8mandos</manvolnum></citerefentry>. The Mandos server
 
135
      uses Zeroconf to announce itself on the local network, and uses
 
136
      TLS to communicate securely with and to authenticate the
 
137
      clients.  The Mandos server uses IPv6 to allow Mandos clients to
 
138
      use IPv6 link-local addresses, since the clients will probably
 
139
      not have any other addresses configured (see <xref
 
140
      linkend="overview"/>).  Any authenticated client is then given
 
141
      the stored pre-encrypted password for that specific client.
123
142
    </para>
124
 
 
125
143
  </refsect1>
126
144
  
127
145
  <refsect1 id="purpose">
128
146
    <title>PURPOSE</title>
129
 
 
130
147
    <para>
131
148
      The purpose of this is to enable <emphasis>remote and unattended
132
149
      rebooting</emphasis> of client host computer with an
133
150
      <emphasis>encrypted root file system</emphasis>.  See <xref
134
151
      linkend="overview"/> for details.
135
152
    </para>
136
 
 
137
153
  </refsect1>
138
154
  
139
155
  <refsect1 id="options">
140
156
    <title>OPTIONS</title>
141
 
 
142
157
    <variablelist>
143
158
      <varlistentry>
144
 
        <term><literal>-h</literal>, <literal>--help</literal></term>
 
159
        <term><option>--help</option></term>
 
160
        <term><option>-h</option></term>
145
161
        <listitem>
146
162
          <para>
147
163
            Show a help message and exit
148
164
          </para>
149
165
        </listitem>
150
166
      </varlistentry>
151
 
 
 
167
      
152
168
      <varlistentry>
153
 
        <term><literal>-i</literal>, <literal>--interface <replaceable>
154
 
        IF</replaceable></literal></term>
 
169
        <term><option>--interface</option>
 
170
        <replaceable>NAME</replaceable></term>
 
171
        <term><option>-i</option>
 
172
        <replaceable>NAME</replaceable></term>
155
173
        <listitem>
156
174
          <xi:include href="mandos-options.xml" xpointer="interface"/>
157
175
        </listitem>
158
176
      </varlistentry>
159
 
 
 
177
      
160
178
      <varlistentry>
161
 
        <term><literal>-a</literal>, <literal>--address <replaceable>
162
 
        ADDRESS</replaceable></literal></term>
 
179
        <term><option>--address
 
180
        <replaceable>ADDRESS</replaceable></option></term>
 
181
        <term><option>-a
 
182
        <replaceable>ADDRESS</replaceable></option></term>
163
183
        <listitem>
164
184
          <xi:include href="mandos-options.xml" xpointer="address"/>
165
185
        </listitem>
166
186
      </varlistentry>
167
 
 
 
187
      
168
188
      <varlistentry>
169
 
        <term><literal>-p</literal>, <literal>--port <replaceable>
170
 
        PORT</replaceable></literal></term>
 
189
        <term><option>--port
 
190
        <replaceable>PORT</replaceable></option></term>
 
191
        <term><option>-p
 
192
        <replaceable>PORT</replaceable></option></term>
171
193
        <listitem>
172
194
          <xi:include href="mandos-options.xml" xpointer="port"/>
173
195
        </listitem>
174
196
      </varlistentry>
175
 
 
 
197
      
176
198
      <varlistentry>
177
 
        <term><literal>--check</literal></term>
 
199
        <term><option>--check</option></term>
178
200
        <listitem>
179
201
          <para>
180
202
            Run the server’s self-tests.  This includes any unit
182
204
          </para>
183
205
        </listitem>
184
206
      </varlistentry>
185
 
 
 
207
      
186
208
      <varlistentry>
187
 
        <term><literal>--debug</literal></term>
 
209
        <term><option>--debug</option></term>
188
210
        <listitem>
189
211
          <xi:include href="mandos-options.xml" xpointer="debug"/>
190
212
        </listitem>
191
213
      </varlistentry>
192
 
 
193
 
      <varlistentry>
194
 
        <term><literal>--priority <replaceable>
195
 
        PRIORITY</replaceable></literal></term>
 
214
      
 
215
      <varlistentry>
 
216
        <term><option>--debuglevel
 
217
        <replaceable>LEVEL</replaceable></option></term>
 
218
        <listitem>
 
219
          <para>
 
220
            Set the debugging log level.
 
221
            <replaceable>LEVEL</replaceable> is a string, one of
 
222
            <quote><literal>CRITICAL</literal></quote>,
 
223
            <quote><literal>ERROR</literal></quote>,
 
224
            <quote><literal>WARNING</literal></quote>,
 
225
            <quote><literal>INFO</literal></quote>, or
 
226
            <quote><literal>DEBUG</literal></quote>, in order of
 
227
            increasing verbosity.  The default level is
 
228
            <quote><literal>WARNING</literal></quote>.
 
229
          </para>
 
230
        </listitem>
 
231
      </varlistentry>
 
232
      
 
233
      <varlistentry>
 
234
        <term><option>--priority <replaceable>
 
235
        PRIORITY</replaceable></option></term>
196
236
        <listitem>
197
237
          <xi:include href="mandos-options.xml" xpointer="priority"/>
198
238
        </listitem>
199
239
      </varlistentry>
200
 
 
 
240
      
201
241
      <varlistentry>
202
 
        <term><literal>--servicename <replaceable>NAME</replaceable>
203
 
        </literal></term>
 
242
        <term><option>--servicename
 
243
        <replaceable>NAME</replaceable></option></term>
204
244
        <listitem>
205
245
          <xi:include href="mandos-options.xml"
206
246
                      xpointer="servicename"/>
207
247
        </listitem>
208
248
      </varlistentry>
209
 
 
 
249
      
210
250
      <varlistentry>
211
 
        <term><literal>--configdir <replaceable>DIR</replaceable>
212
 
        </literal></term>
 
251
        <term><option>--configdir
 
252
        <replaceable>DIRECTORY</replaceable></option></term>
213
253
        <listitem>
214
254
          <para>
215
255
            Directory to search for configuration files.  Default is
221
261
          </para>
222
262
        </listitem>
223
263
      </varlistentry>
224
 
 
 
264
      
225
265
      <varlistentry>
226
 
        <term><literal>--version</literal></term>
 
266
        <term><option>--version</option></term>
227
267
        <listitem>
228
268
          <para>
229
269
            Prints the program version and exit.
230
270
          </para>
231
271
        </listitem>
232
272
      </varlistentry>
 
273
      
 
274
      <varlistentry>
 
275
        <term><option>--no-dbus</option></term>
 
276
        <listitem>
 
277
          <xi:include href="mandos-options.xml" xpointer="dbus"/>
 
278
          <para>
 
279
            See also <xref linkend="dbus_interface"/>.
 
280
          </para>
 
281
        </listitem>
 
282
      </varlistentry>
 
283
      
 
284
      <varlistentry>
 
285
        <term><option>--no-ipv6</option></term>
 
286
        <listitem>
 
287
          <xi:include href="mandos-options.xml" xpointer="ipv6"/>
 
288
        </listitem>
 
289
      </varlistentry>
 
290
      
 
291
      <varlistentry>
 
292
        <term><option>--no-restore</option></term>
 
293
        <listitem>
 
294
          <xi:include href="mandos-options.xml" xpointer="restore"/>
 
295
          <para>
 
296
            See also <xref linkend="persistent_state"/>.
 
297
          </para>
 
298
        </listitem>
 
299
      </varlistentry>
 
300
      
 
301
      <varlistentry>
 
302
        <term><option>--statedir
 
303
        <replaceable>DIRECTORY</replaceable></option></term>
 
304
        <listitem>
 
305
          <xi:include href="mandos-options.xml" xpointer="statedir"/>
 
306
        </listitem>
 
307
      </varlistentry>
 
308
      
 
309
      <varlistentry>
 
310
        <term><option>--socket
 
311
        <replaceable>FD</replaceable></option></term>
 
312
        <listitem>
 
313
          <xi:include href="mandos-options.xml" xpointer="socket"/>
 
314
        </listitem>
 
315
      </varlistentry>
 
316
      
 
317
      <varlistentry>
 
318
        <term><option>--foreground</option></term>
 
319
        <listitem>
 
320
          <xi:include href="mandos-options.xml"
 
321
                      xpointer="foreground"/>
 
322
        </listitem>
 
323
      </varlistentry>
 
324
      
233
325
    </variablelist>
234
326
  </refsect1>
235
 
 
 
327
  
236
328
  <refsect1 id="overview">
237
329
    <title>OVERVIEW</title>
238
330
    <xi:include href="overview.xml"/>
239
331
    <para>
240
332
      This program is the server part.  It is a normal server program
241
333
      and will run in a normal system environment, not in an initial
242
 
      RAM disk environment.
 
334
      <acronym>RAM</acronym> disk environment.
243
335
    </para>
244
336
  </refsect1>
245
 
 
 
337
  
246
338
  <refsect1 id="protocol">
247
339
    <title>NETWORK PROTOCOL</title>
248
340
    <para>
274
366
        <entry>-><!-- &rarr; --></entry>
275
367
      </row>
276
368
      <row>
277
 
        <entry><quote><literal>1\r\en</literal></quote></entry>
 
369
        <entry><quote><literal>1\r\n</literal></quote></entry>
278
370
        <entry>-><!-- &rarr; --></entry>
279
371
      </row>
280
372
      <row>
300
392
      </row>
301
393
    </tbody></tgroup></table>
302
394
  </refsect1>
303
 
 
 
395
  
304
396
  <refsect1 id="checking">
305
397
    <title>CHECKING</title>
306
398
    <para>
307
399
      The server will, by default, continually check that the clients
308
400
      are still up.  If a client has not been confirmed as being up
309
401
      for some time, the client is assumed to be compromised and is no
310
 
      longer eligible to receive the encrypted password.  The timeout,
311
 
      checker program, and interval between checks can be configured
312
 
      both globally and per client; see <citerefentry>
313
 
      <refentrytitle>mandos.conf</refentrytitle>
314
 
      <manvolnum>5</manvolnum></citerefentry> and <citerefentry>
 
402
      longer eligible to receive the encrypted password.  (Manual
 
403
      intervention is required to re-enable a client.)  The timeout,
 
404
      extended timeout, checker program, and interval between checks
 
405
      can be configured both globally and per client; see
 
406
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
 
407
      <manvolnum>5</manvolnum></citerefentry>.
 
408
    </para>
 
409
  </refsect1>
 
410
  
 
411
  <refsect1 id="approval">
 
412
    <title>APPROVAL</title>
 
413
    <para>
 
414
      The server can be configured to require manual approval for a
 
415
      client before it is sent its secret.  The delay to wait for such
 
416
      approval and the default action (approve or deny) can be
 
417
      configured both globally and per client; see <citerefentry>
315
418
      <refentrytitle>mandos-clients.conf</refentrytitle>
316
 
      <manvolnum>5</manvolnum></citerefentry>.
317
 
    </para>
 
419
      <manvolnum>5</manvolnum></citerefentry>.  By default all clients
 
420
      will be approved immediately without delay.
 
421
    </para>
 
422
    <para>
 
423
      This can be used to deny a client its secret if not manually
 
424
      approved within a specified time.  It can also be used to make
 
425
      the server delay before giving a client its secret, allowing
 
426
      optional manual denying of this specific client.
 
427
    </para>
 
428
    
318
429
  </refsect1>
319
 
 
 
430
  
320
431
  <refsect1 id="logging">
321
432
    <title>LOGGING</title>
322
433
    <para>
323
 
      The server will send log messaged with various severity levels
324
 
      to <filename>/dev/log</filename>.  With the
 
434
      The server will send log message with various severity levels to
 
435
      <filename class="devicefile">/dev/log</filename>.  With the
325
436
      <option>--debug</option> option, it will log even more messages,
326
437
      and also show them on the console.
327
438
    </para>
328
439
  </refsect1>
329
 
 
 
440
  
 
441
  <refsect1 id="persistent_state">
 
442
    <title>PERSISTENT STATE</title>
 
443
    <para>
 
444
      Client settings, initially read from
 
445
      <filename>clients.conf</filename>, are persistent across
 
446
      restarts, and run-time changes will override settings in
 
447
      <filename>clients.conf</filename>.  However, if a setting is
 
448
      <emphasis>changed</emphasis> (or a client added, or removed) in
 
449
      <filename>clients.conf</filename>, this will take precedence.
 
450
    </para>
 
451
  </refsect1>
 
452
  
 
453
  <refsect1 id="dbus_interface">
 
454
    <title>D-BUS INTERFACE</title>
 
455
    <para>
 
456
      The server will by default provide a D-Bus system bus interface.
 
457
      This interface will only be accessible by the root user or a
 
458
      Mandos-specific user, if such a user exists.  For documentation
 
459
      of the D-Bus API, see the file <filename>DBUS-API</filename>.
 
460
    </para>
 
461
  </refsect1>
 
462
  
330
463
  <refsect1 id="exit_status">
331
464
    <title>EXIT STATUS</title>
332
465
    <para>
334
467
      critical error is encountered.
335
468
    </para>
336
469
  </refsect1>
337
 
 
 
470
  
338
471
  <refsect1 id="environment">
339
472
    <title>ENVIRONMENT</title>
340
473
    <variablelist>
341
474
      <varlistentry>
342
 
        <term><varname>PATH</varname></term>
 
475
        <term><envar>PATH</envar></term>
343
476
        <listitem>
344
477
          <para>
345
478
            To start the configured checker (see <xref
348
481
            <varname>PATH</varname> to search for matching commands if
349
482
            an absolute path is not given.  See <citerefentry>
350
483
            <refentrytitle>sh</refentrytitle><manvolnum>1</manvolnum>
351
 
          </citerefentry>
 
484
            </citerefentry>.
352
485
          </para>
353
486
        </listitem>
354
487
      </varlistentry>
355
488
    </variablelist>
356
489
  </refsect1>
357
 
 
358
 
  <refsect1 id="file">
 
490
  
 
491
  <refsect1 id="files">
359
492
    <title>FILES</title>
360
493
    <para>
361
494
      Use the <option>--configdir</option> option to change where
384
517
        </listitem>
385
518
      </varlistentry>
386
519
      <varlistentry>
387
 
        <term><filename>/var/run/mandos/mandos.pid</filename></term>
388
 
        <listitem>
389
 
          <para>
390
 
            The file containing the process id of
391
 
            <command>&COMMANDNAME;</command>.
 
520
        <term><filename>/run/mandos.pid</filename></term>
 
521
        <listitem>
 
522
          <para>
 
523
            The file containing the process id of the
 
524
            <command>&COMMANDNAME;</command> process started last.
 
525
          </para>
 
526
        </listitem>
 
527
      </varlistentry>
 
528
      <varlistentry>
 
529
        <term><filename class="devicefile">/dev/log</filename></term>
 
530
      </varlistentry>
 
531
      <varlistentry>
 
532
        <term><filename
 
533
        class="directory">/var/lib/mandos</filename></term>
 
534
        <listitem>
 
535
          <para>
 
536
            Directory where persistent state will be saved.  Change
 
537
            this with the <option>--statedir</option> option.  See
 
538
            also the <option>--no-restore</option> option.
392
539
          </para>
393
540
        </listitem>
394
541
      </varlistentry>
422
569
      backtrace.  This could be considered a feature.
423
570
    </para>
424
571
    <para>
425
 
      Currently, if a client is declared <quote>invalid</quote> due to
426
 
      having timed out, the server does not record this fact onto
427
 
      permanent storage.  This has some security implications, see
428
 
      <xref linkend="CLIENTS"/>.
429
 
    </para>
430
 
    <para>
431
 
      There is currently no way of querying the server of the current
432
 
      status of clients, other than analyzing its <systemitem
433
 
      class="service">syslog</systemitem> output.
434
 
    </para>
435
 
    <para>
436
572
      There is no fine-grained control over logging and debug output.
437
573
    </para>
438
574
    <para>
439
 
      Debug mode is conflated with running in the foreground.
440
 
    </para>
441
 
    <para>
442
 
      The console log messages does not show a timestamp.
 
575
      This server does not check the expire time of clients’ OpenPGP
 
576
      keys.
443
577
    </para>
444
578
  </refsect1>
445
579
  
450
584
        Normal invocation needs no options:
451
585
      </para>
452
586
      <para>
453
 
        <userinput>mandos</userinput>
 
587
        <userinput>&COMMANDNAME;</userinput>
454
588
      </para>
455
589
    </informalexample>
456
590
    <informalexample>
457
591
      <para>
458
592
        Run the server in debug mode, read configuration files from
459
 
        the <filename>~/mandos</filename> directory, and use the
460
 
        Zeroconf service name <quote>Test</quote> to not collide with
461
 
        any other official Mandos server on this host:
 
593
        the <filename class="directory">~/mandos</filename> directory,
 
594
        and use the Zeroconf service name <quote>Test</quote> to not
 
595
        collide with any other official Mandos server on this host:
462
596
      </para>
463
597
      <para>
464
598
 
465
599
<!-- do not wrap this line -->
466
 
<userinput>mandos --debug --configdir ~/mandos --servicename Test</userinput>
 
600
<userinput>&COMMANDNAME; --debug --configdir ~/mandos --servicename Test</userinput>
467
601
 
468
602
      </para>
469
603
    </informalexample>
475
609
      <para>
476
610
 
477
611
<!-- do not wrap this line -->
478
 
<userinput>mandos --interface eth7 --address fe80::aede:48ff:fe71:f6f2</userinput>
 
612
<userinput>&COMMANDNAME; --interface eth7 --address fe80::aede:48ff:fe71:f6f2</userinput>
479
613
 
480
614
      </para>
481
615
    </informalexample>
482
616
  </refsect1>
483
 
 
 
617
  
484
618
  <refsect1 id="security">
485
619
    <title>SECURITY</title>
486
 
    <refsect2 id="SERVER">
 
620
    <refsect2 id="server">
487
621
      <title>SERVER</title>
488
622
      <para>
489
623
        Running this <command>&COMMANDNAME;</command> server program
490
624
        should not in itself present any security risk to the host
491
 
        computer running it.  The program does not need any special
492
 
        privileges to run, and is designed to run as a non-root user.
 
625
        computer running it.  The program switches to a non-root user
 
626
        soon after startup.
493
627
      </para>
494
628
    </refsect2>
495
 
    <refsect2 id="CLIENTS">
 
629
    <refsect2 id="clients">
496
630
      <title>CLIENTS</title>
497
631
      <para>
498
632
        The server only gives out its stored data to clients which
505
639
        <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
506
640
        <manvolnum>5</manvolnum></citerefentry>)
507
641
        <emphasis>must</emphasis> be made non-readable by anyone
508
 
        except the user running the server.
 
642
        except the user starting the server (usually root).
509
643
      </para>
510
644
      <para>
511
645
        As detailed in <xref linkend="checking"/>, the status of all
513
647
        compromised if they are gone for too long.
514
648
      </para>
515
649
      <para>
516
 
        If a client is compromised, its downtime should be duly noted
517
 
        by the server which would therefore declare the client
518
 
        invalid.  But if the server was ever restarted, it would
519
 
        re-read its client list from its configuration file and again
520
 
        regard all clients therein as valid, and hence eligible to
521
 
        receive their passwords.  Therefore, be careful when
522
 
        restarting servers if it is suspected that a client has, in
523
 
        fact, been compromised by parties who may now be running a
524
 
        fake Mandos client with the keys from the non-encrypted
525
 
        initial RAM image of the client host.  What should be done in
526
 
        that case (if restarting the server program really is
527
 
        necessary) is to stop the server program, edit the
528
 
        configuration file to omit any suspect clients, and restart
529
 
        the server program.
530
 
      </para>
531
 
      <para>
532
650
        For more details on client-side security, see
533
 
        <citerefentry><refentrytitle>password-request</refentrytitle>
 
651
        <citerefentry><refentrytitle>mandos-client</refentrytitle>
534
652
        <manvolnum>8mandos</manvolnum></citerefentry>.
535
653
      </para>
536
654
    </refsect2>
537
655
  </refsect1>
538
 
 
 
656
  
539
657
  <refsect1 id="see_also">
540
658
    <title>SEE ALSO</title>
 
659
    <para>
 
660
      <citerefentry><refentrytitle>intro</refentrytitle>
 
661
      <manvolnum>8mandos</manvolnum></citerefentry>,
 
662
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
 
663
      <manvolnum>5</manvolnum></citerefentry>,
 
664
      <citerefentry><refentrytitle>mandos.conf</refentrytitle>
 
665
      <manvolnum>5</manvolnum></citerefentry>,
 
666
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
 
667
      <manvolnum>8mandos</manvolnum></citerefentry>,
 
668
      <citerefentry><refentrytitle>sh</refentrytitle>
 
669
      <manvolnum>1</manvolnum></citerefentry>
 
670
    </para>
541
671
    <variablelist>
542
672
      <varlistentry>
543
673
        <term>
544
 
          <citerefentry>
545
 
            <refentrytitle>password-request</refentrytitle>
546
 
            <manvolnum>8mandos</manvolnum>
547
 
          </citerefentry>
548
 
        </term>
549
 
        <listitem>
550
 
          <para>
551
 
            This is the actual program which talks to this server.
552
 
            Note that it is normally not invoked directly, and is only
553
 
            run in the initial RAM disk environment, and not on a
554
 
            fully started system.
555
 
          </para>
556
 
        </listitem>
557
 
      </varlistentry>
558
 
      <varlistentry>
559
 
        <term>
560
674
          <ulink url="http://www.zeroconf.org/">Zeroconf</ulink>
561
675
        </term>
562
676
        <listitem>
579
693
      </varlistentry>
580
694
      <varlistentry>
581
695
        <term>
582
 
          <ulink
583
 
              url="http://www.gnu.org/software/gnutls/">GnuTLS</ulink>
 
696
          <ulink url="http://www.gnu.org/software/gnutls/"
 
697
          >GnuTLS</ulink>
584
698
        </term>
585
699
      <listitem>
586
700
        <para>
592
706
      </varlistentry>
593
707
      <varlistentry>
594
708
        <term>
595
 
          <citation>RFC 4291: <citetitle>IP Version 6 Addressing
596
 
          Architecture</citetitle>, section 2.5.6, Link-Local IPv6
597
 
          Unicast Addresses</citation>
 
709
          RFC 4291: <citetitle>IP Version 6 Addressing
 
710
          Architecture</citetitle>
598
711
        </term>
599
712
        <listitem>
600
 
          <para>
601
 
            The clients use IPv6 link-local addresses, which are
602
 
            immediately usable since a link-local addresses is
603
 
            automatically assigned to a network interfaces when it is
604
 
            brought up.
605
 
          </para>
 
713
          <variablelist>
 
714
            <varlistentry>
 
715
              <term>Section 2.2: <citetitle>Text Representation of
 
716
              Addresses</citetitle></term>
 
717
              <listitem><para/></listitem>
 
718
            </varlistentry>
 
719
            <varlistentry>
 
720
              <term>Section 2.5.5.2: <citetitle>IPv4-Mapped IPv6
 
721
              Address</citetitle></term>
 
722
              <listitem><para/></listitem>
 
723
            </varlistentry>
 
724
            <varlistentry>
 
725
            <term>Section 2.5.6, <citetitle>Link-Local IPv6 Unicast
 
726
            Addresses</citetitle></term>
 
727
            <listitem>
 
728
              <para>
 
729
                The clients use IPv6 link-local addresses, which are
 
730
                immediately usable since a link-local addresses is
 
731
                automatically assigned to a network interfaces when it
 
732
                is brought up.
 
733
              </para>
 
734
            </listitem>
 
735
            </varlistentry>
 
736
          </variablelist>
606
737
        </listitem>
607
738
      </varlistentry>
608
739
      <varlistentry>
609
740
        <term>
610
 
          <citation>RFC 4346: <citetitle>The Transport Layer Security
611
 
          (TLS) Protocol Version 1.1</citetitle></citation>
 
741
          RFC 4346: <citetitle>The Transport Layer Security (TLS)
 
742
          Protocol Version 1.1</citetitle>
612
743
        </term>
613
744
      <listitem>
614
745
        <para>
618
749
      </varlistentry>
619
750
      <varlistentry>
620
751
        <term>
621
 
          <citation>RFC 4880: <citetitle>OpenPGP Message
622
 
          Format</citetitle></citation>
 
752
          RFC 4880: <citetitle>OpenPGP Message Format</citetitle>
623
753
        </term>
624
754
      <listitem>
625
755
        <para>
629
759
      </varlistentry>
630
760
      <varlistentry>
631
761
        <term>
632
 
          <citation>RFC 5081: <citetitle>Using OpenPGP Keys for
633
 
          Transport Layer Security</citetitle></citation>
 
762
          RFC 5081: <citetitle>Using OpenPGP Keys for Transport Layer
 
763
          Security</citetitle>
634
764
        </term>
635
765
      <listitem>
636
766
        <para>
642
772
    </variablelist>
643
773
  </refsect1>
644
774
</refentry>
 
775
<!-- Local Variables: -->
 
776
<!-- time-stamp-start: "<!ENTITY TIMESTAMP [\"']" -->
 
777
<!-- time-stamp-end: "[\"']>" -->
 
778
<!-- time-stamp-format: "%:y-%02m-%02d" -->
 
779
<!-- End: -->