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  • Committer: Teddy Hogeborn
  • Date: 2008-08-24 23:18:18 UTC
  • Revision ID: teddy@fukt.bsnet.se-20080824231818-4cgr5zekodg4s0dl
* initramfs-tools-hook: Added "--enable-dsa2" and "--trust-model
                        always" options to gpg.

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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 "2009-09-17">
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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>Mandos Manual</title>
 
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  <refentryinfo>
 
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    <title>&COMMANDNAME;</title>
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    <!-- NWalsh’s docbook scripts use this to generate the footer: -->
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    <productname>Mandos</productname>
15
 
    <productnumber>&version;</productnumber>
16
 
    <date>&TIMESTAMP;</date>
 
12
    <productname>&COMMANDNAME;</productname>
 
13
    <productnumber>&VERSION;</productnumber>
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    <authorgroup>
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      <author>
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        <firstname>Björn</firstname>
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    </authorgroup>
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    <copyright>
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      <year>2008</year>
35
 
      <year>2009</year>
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      <holder>Teddy Hogeborn</holder>
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      <holder>Björn Påhlsson</holder>
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    </copyright>
39
 
    <xi:include href="legalnotice.xml"/>
 
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>
40
58
  </refentryinfo>
41
 
  
 
59
 
42
60
  <refmeta>
43
61
    <refentrytitle>&COMMANDNAME;</refentrytitle>
44
62
    <manvolnum>8</manvolnum>
47
65
  <refnamediv>
48
66
    <refname><command>&COMMANDNAME;</command></refname>
49
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    <refpurpose>
50
 
      Gives encrypted passwords to authenticated Mandos clients
 
68
      Sends encrypted passwords to authenticated Mandos clients
51
69
    </refpurpose>
52
70
  </refnamediv>
53
 
  
 
71
 
54
72
  <refsynopsisdiv>
55
73
    <cmdsynopsis>
56
74
      <command>&COMMANDNAME;</command>
57
 
      <group>
58
 
        <arg choice="plain"><option>--interface
59
 
        <replaceable>NAME</replaceable></option></arg>
60
 
        <arg choice="plain"><option>-i
61
 
        <replaceable>NAME</replaceable></option></arg>
62
 
      </group>
63
 
      <sbr/>
64
 
      <group>
65
 
        <arg choice="plain"><option>--address
66
 
        <replaceable>ADDRESS</replaceable></option></arg>
67
 
        <arg choice="plain"><option>-a
68
 
        <replaceable>ADDRESS</replaceable></option></arg>
69
 
      </group>
70
 
      <sbr/>
71
 
      <group>
72
 
        <arg choice="plain"><option>--port
73
 
        <replaceable>PORT</replaceable></option></arg>
74
 
        <arg choice="plain"><option>-p
75
 
        <replaceable>PORT</replaceable></option></arg>
76
 
      </group>
77
 
      <sbr/>
78
 
      <arg><option>--priority
79
 
      <replaceable>PRIORITY</replaceable></option></arg>
80
 
      <sbr/>
81
 
      <arg><option>--servicename
82
 
      <replaceable>NAME</replaceable></option></arg>
83
 
      <sbr/>
84
 
      <arg><option>--configdir
85
 
      <replaceable>DIRECTORY</replaceable></option></arg>
86
 
      <sbr/>
87
 
      <arg><option>--debug</option></arg>
88
 
      <sbr/>
89
 
      <arg><option>--no-dbus</option></arg>
90
 
      <sbr/>
91
 
      <arg><option>--no-ipv6</option></arg>
 
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>
92
92
    </cmdsynopsis>
93
93
    <cmdsynopsis>
94
94
      <command>&COMMANDNAME;</command>
95
95
      <group choice="req">
96
 
        <arg choice="plain"><option>--help</option></arg>
97
 
        <arg choice="plain"><option>-h</option></arg>
 
96
        <arg choice="plain">-h</arg>
 
97
        <arg choice="plain">--help</arg>
98
98
      </group>
99
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    </cmdsynopsis>
100
100
    <cmdsynopsis>
101
101
      <command>&COMMANDNAME;</command>
102
 
      <arg choice="plain"><option>--version</option></arg>
 
102
      <arg choice="plain">--version</arg>
103
103
    </cmdsynopsis>
104
104
    <cmdsynopsis>
105
105
      <command>&COMMANDNAME;</command>
106
 
      <arg choice="plain"><option>--check</option></arg>
 
106
      <arg choice="plain">--check</arg>
107
107
    </cmdsynopsis>
108
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  </refsynopsisdiv>
109
 
  
 
109
 
110
110
  <refsect1 id="description">
111
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    <title>DESCRIPTION</title>
112
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    <para>
121
121
      Any authenticated client is then given the stored pre-encrypted
122
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      password for that specific client.
123
123
    </para>
 
124
 
124
125
  </refsect1>
125
126
  
126
127
  <refsect1 id="purpose">
127
128
    <title>PURPOSE</title>
 
129
 
128
130
    <para>
129
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      The purpose of this is to enable <emphasis>remote and unattended
130
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      rebooting</emphasis> of client host computer with an
131
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      <emphasis>encrypted root file system</emphasis>.  See <xref
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      linkend="overview"/> for details.
133
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    </para>
 
136
 
134
137
  </refsect1>
135
138
  
136
139
  <refsect1 id="options">
137
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    <title>OPTIONS</title>
 
141
 
138
142
    <variablelist>
139
143
      <varlistentry>
140
 
        <term><option>--help</option></term>
141
 
        <term><option>-h</option></term>
 
144
        <term><literal>-h</literal>, <literal>--help</literal></term>
142
145
        <listitem>
143
146
          <para>
144
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            Show a help message and exit
145
148
          </para>
146
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        </listitem>
147
150
      </varlistentry>
148
 
      
 
151
 
149
152
      <varlistentry>
150
 
        <term><option>--interface</option>
151
 
        <replaceable>NAME</replaceable></term>
152
 
        <term><option>-i</option>
153
 
        <replaceable>NAME</replaceable></term>
 
153
        <term><literal>-i</literal>, <literal>--interface <replaceable>
 
154
        IF</replaceable></literal></term>
154
155
        <listitem>
155
156
          <xi:include href="mandos-options.xml" xpointer="interface"/>
156
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        </listitem>
157
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      </varlistentry>
158
 
      
 
159
 
159
160
      <varlistentry>
160
 
        <term><option>--address
161
 
        <replaceable>ADDRESS</replaceable></option></term>
162
 
        <term><option>-a
163
 
        <replaceable>ADDRESS</replaceable></option></term>
 
161
        <term><literal>-a</literal>, <literal>--address <replaceable>
 
162
        ADDRESS</replaceable></literal></term>
164
163
        <listitem>
165
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          <xi:include href="mandos-options.xml" xpointer="address"/>
166
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        </listitem>
167
166
      </varlistentry>
168
 
      
 
167
 
169
168
      <varlistentry>
170
 
        <term><option>--port
171
 
        <replaceable>PORT</replaceable></option></term>
172
 
        <term><option>-p
173
 
        <replaceable>PORT</replaceable></option></term>
 
169
        <term><literal>-p</literal>, <literal>--port <replaceable>
 
170
        PORT</replaceable></literal></term>
174
171
        <listitem>
175
172
          <xi:include href="mandos-options.xml" xpointer="port"/>
176
173
        </listitem>
177
174
      </varlistentry>
178
 
      
 
175
 
179
176
      <varlistentry>
180
 
        <term><option>--check</option></term>
 
177
        <term><literal>--check</literal></term>
181
178
        <listitem>
182
179
          <para>
183
180
            Run the server’s self-tests.  This includes any unit
185
182
          </para>
186
183
        </listitem>
187
184
      </varlistentry>
188
 
      
 
185
 
189
186
      <varlistentry>
190
 
        <term><option>--debug</option></term>
 
187
        <term><literal>--debug</literal></term>
191
188
        <listitem>
192
189
          <xi:include href="mandos-options.xml" xpointer="debug"/>
193
190
        </listitem>
194
191
      </varlistentry>
195
 
      
 
192
 
196
193
      <varlistentry>
197
 
        <term><option>--priority <replaceable>
198
 
        PRIORITY</replaceable></option></term>
 
194
        <term><literal>--priority <replaceable>
 
195
        PRIORITY</replaceable></literal></term>
199
196
        <listitem>
200
197
          <xi:include href="mandos-options.xml" xpointer="priority"/>
201
198
        </listitem>
202
199
      </varlistentry>
203
 
      
 
200
 
204
201
      <varlistentry>
205
 
        <term><option>--servicename
206
 
        <replaceable>NAME</replaceable></option></term>
 
202
        <term><literal>--servicename <replaceable>NAME</replaceable>
 
203
        </literal></term>
207
204
        <listitem>
208
205
          <xi:include href="mandos-options.xml"
209
206
                      xpointer="servicename"/>
210
207
        </listitem>
211
208
      </varlistentry>
212
 
      
 
209
 
213
210
      <varlistentry>
214
 
        <term><option>--configdir
215
 
        <replaceable>DIRECTORY</replaceable></option></term>
 
211
        <term><literal>--configdir <replaceable>DIR</replaceable>
 
212
        </literal></term>
216
213
        <listitem>
217
214
          <para>
218
215
            Directory to search for configuration files.  Default is
224
221
          </para>
225
222
        </listitem>
226
223
      </varlistentry>
227
 
      
 
224
 
228
225
      <varlistentry>
229
 
        <term><option>--version</option></term>
 
226
        <term><literal>--version</literal></term>
230
227
        <listitem>
231
228
          <para>
232
229
            Prints the program version and exit.
233
230
          </para>
234
231
        </listitem>
235
232
      </varlistentry>
236
 
      
237
 
      <varlistentry>
238
 
        <term><option>--no-dbus</option></term>
239
 
        <listitem>
240
 
          <xi:include href="mandos-options.xml" xpointer="dbus"/>
241
 
          <para>
242
 
            See also <xref linkend="dbus_interface"/>.
243
 
          </para>
244
 
        </listitem>
245
 
      </varlistentry>
246
 
      
247
 
      <varlistentry>
248
 
        <term><option>--no-ipv6</option></term>
249
 
        <listitem>
250
 
          <xi:include href="mandos-options.xml" xpointer="ipv6"/>
251
 
        </listitem>
252
 
      </varlistentry>
253
233
    </variablelist>
254
234
  </refsect1>
255
 
  
 
235
 
256
236
  <refsect1 id="overview">
257
237
    <title>OVERVIEW</title>
258
238
    <xi:include href="overview.xml"/>
259
239
    <para>
260
240
      This program is the server part.  It is a normal server program
261
241
      and will run in a normal system environment, not in an initial
262
 
      <acronym>RAM</acronym> disk environment.
 
242
      RAM disk environment.
263
243
    </para>
264
244
  </refsect1>
265
 
  
 
245
 
266
246
  <refsect1 id="protocol">
267
247
    <title>NETWORK PROTOCOL</title>
268
248
    <para>
320
300
      </row>
321
301
    </tbody></tgroup></table>
322
302
  </refsect1>
323
 
  
 
303
 
324
304
  <refsect1 id="checking">
325
305
    <title>CHECKING</title>
326
306
    <para>
327
307
      The server will, by default, continually check that the clients
328
308
      are still up.  If a client has not been confirmed as being up
329
309
      for some time, the client is assumed to be compromised and is no
330
 
      longer eligible to receive the encrypted password.  (Manual
331
 
      intervention is required to re-enable a client.)  The timeout,
 
310
      longer eligible to receive the encrypted password.  The timeout,
332
311
      checker program, and interval between checks can be configured
333
312
      both globally and per client; see <citerefentry>
334
313
      <refentrytitle>mandos-clients.conf</refentrytitle>
335
 
      <manvolnum>5</manvolnum></citerefentry>.  A client successfully
336
 
      receiving its password will also be treated as a successful
337
 
      checker run.
 
314
      <manvolnum>5</manvolnum></citerefentry>.
338
315
    </para>
339
316
  </refsect1>
340
 
  
 
317
 
341
318
  <refsect1 id="logging">
342
319
    <title>LOGGING</title>
343
320
    <para>
347
324
      and also show them on the console.
348
325
    </para>
349
326
  </refsect1>
350
 
  
351
 
  <refsect1 id="dbus_interface">
352
 
    <title>D-BUS INTERFACE</title>
353
 
    <para>
354
 
      The server will by default provide a D-Bus system bus interface.
355
 
      This interface will only be accessible by the root user or a
356
 
      Mandos-specific user, if such a user exists.
357
 
      <!-- XXX -->
358
 
    </para>
359
 
  </refsect1>
360
 
  
 
327
 
361
328
  <refsect1 id="exit_status">
362
329
    <title>EXIT STATUS</title>
363
330
    <para>
365
332
      critical error is encountered.
366
333
    </para>
367
334
  </refsect1>
368
 
  
 
335
 
369
336
  <refsect1 id="environment">
370
337
    <title>ENVIRONMENT</title>
371
338
    <variablelist>
372
339
      <varlistentry>
373
 
        <term><envar>PATH</envar></term>
 
340
        <term><varname>PATH</varname></term>
374
341
        <listitem>
375
342
          <para>
376
343
            To start the configured checker (see <xref
385
352
      </varlistentry>
386
353
    </variablelist>
387
354
  </refsect1>
388
 
  
389
 
  <refsect1 id="files">
 
355
 
 
356
  <refsect1 id="file">
390
357
    <title>FILES</title>
391
358
    <para>
392
359
      Use the <option>--configdir</option> option to change where
415
382
        </listitem>
416
383
      </varlistentry>
417
384
      <varlistentry>
418
 
        <term><filename>/var/run/mandos.pid</filename></term>
 
385
        <term><filename>/var/run/mandos/mandos.pid</filename></term>
419
386
        <listitem>
420
387
          <para>
421
388
            The file containing the process id of
456
423
      Currently, if a client is declared <quote>invalid</quote> due to
457
424
      having timed out, the server does not record this fact onto
458
425
      permanent storage.  This has some security implications, see
459
 
      <xref linkend="clients"/>.
 
426
      <xref linkend="CLIENTS"/>.
460
427
    </para>
461
428
    <para>
462
429
      There is currently no way of querying the server of the current
470
437
      Debug mode is conflated with running in the foreground.
471
438
    </para>
472
439
    <para>
473
 
      The console log messages do not show a time stamp.
474
 
    </para>
475
 
    <para>
476
 
      This server does not check the expire time of clients’ OpenPGP
477
 
      keys.
 
440
      The console log messages does not show a timestamp.
478
441
    </para>
479
442
  </refsect1>
480
443
  
485
448
        Normal invocation needs no options:
486
449
      </para>
487
450
      <para>
488
 
        <userinput>&COMMANDNAME;</userinput>
 
451
        <userinput>mandos</userinput>
489
452
      </para>
490
453
    </informalexample>
491
454
    <informalexample>
498
461
      <para>
499
462
 
500
463
<!-- do not wrap this line -->
501
 
<userinput>&COMMANDNAME; --debug --configdir ~/mandos --servicename Test</userinput>
 
464
<userinput>mandos --debug --configdir ~/mandos --servicename Test</userinput>
502
465
 
503
466
      </para>
504
467
    </informalexample>
510
473
      <para>
511
474
 
512
475
<!-- do not wrap this line -->
513
 
<userinput>&COMMANDNAME; --interface eth7 --address fe80::aede:48ff:fe71:f6f2</userinput>
 
476
<userinput>mandos --interface eth7 --address fe80::aede:48ff:fe71:f6f2</userinput>
514
477
 
515
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      </para>
516
479
    </informalexample>
517
480
  </refsect1>
518
 
  
 
481
 
519
482
  <refsect1 id="security">
520
483
    <title>SECURITY</title>
521
 
    <refsect2 id="server">
 
484
    <refsect2 id="SERVER">
522
485
      <title>SERVER</title>
523
486
      <para>
524
487
        Running this <command>&COMMANDNAME;</command> server program
525
488
        should not in itself present any security risk to the host
526
 
        computer running it.  The program switches to a non-root user
527
 
        soon after startup.
 
489
        computer running it.  The program does not need any special
 
490
        privileges to run, and is designed to run as a non-root user.
528
491
      </para>
529
492
    </refsect2>
530
 
    <refsect2 id="clients">
 
493
    <refsect2 id="CLIENTS">
531
494
      <title>CLIENTS</title>
532
495
      <para>
533
496
        The server only gives out its stored data to clients which
540
503
        <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
541
504
        <manvolnum>5</manvolnum></citerefentry>)
542
505
        <emphasis>must</emphasis> be made non-readable by anyone
543
 
        except the user starting the server (usually root).
 
506
        except the user running the server.
544
507
      </para>
545
508
      <para>
546
509
        As detailed in <xref linkend="checking"/>, the status of all
557
520
        restarting servers if it is suspected that a client has, in
558
521
        fact, been compromised by parties who may now be running a
559
522
        fake Mandos client with the keys from the non-encrypted
560
 
        initial <acronym>RAM</acronym> image of the client host.  What
561
 
        should be done in that case (if restarting the server program
562
 
        really is necessary) is to stop the server program, edit the
 
523
        initial RAM image of the client host.  What should be done in
 
524
        that case (if restarting the server program really is
 
525
        necessary) is to stop the server program, edit the
563
526
        configuration file to omit any suspect clients, and restart
564
527
        the server program.
565
528
      </para>
566
529
      <para>
567
530
        For more details on client-side security, see
568
 
        <citerefentry><refentrytitle>mandos-client</refentrytitle>
 
531
        <citerefentry><refentrytitle>password-request</refentrytitle>
569
532
        <manvolnum>8mandos</manvolnum></citerefentry>.
570
533
      </para>
571
534
    </refsect2>
572
535
  </refsect1>
573
 
  
 
536
 
574
537
  <refsect1 id="see_also">
575
538
    <title>SEE ALSO</title>
576
539
    <para>
577
540
      <citerefentry>
 
541
        <refentrytitle>mandos.conf</refentrytitle>
 
542
        <manvolnum>5</manvolnum></citerefentry>, <citerefentry>
578
543
        <refentrytitle>mandos-clients.conf</refentrytitle>
579
544
        <manvolnum>5</manvolnum></citerefentry>, <citerefentry>
580
 
        <refentrytitle>mandos.conf</refentrytitle>
581
 
        <manvolnum>5</manvolnum></citerefentry>, <citerefentry>
582
 
        <refentrytitle>mandos-client</refentrytitle>
 
545
        <refentrytitle>password-request</refentrytitle>
583
546
        <manvolnum>8mandos</manvolnum></citerefentry>, <citerefentry>
584
547
        <refentrytitle>sh</refentrytitle><manvolnum>1</manvolnum>
585
548
      </citerefentry>
609
572
      </varlistentry>
610
573
      <varlistentry>
611
574
        <term>
612
 
          <ulink url="http://www.gnu.org/software/gnutls/"
613
 
          >GnuTLS</ulink>
 
575
          <ulink
 
576
              url="http://www.gnu.org/software/gnutls/">GnuTLS</ulink>
614
577
        </term>
615
578
      <listitem>
616
579
        <para>
622
585
      </varlistentry>
623
586
      <varlistentry>
624
587
        <term>
625
 
          RFC 4291: <citetitle>IP Version 6 Addressing
626
 
          Architecture</citetitle>
 
588
          <citation>RFC 4291: <citetitle>IP Version 6 Addressing
 
589
          Architecture</citetitle>, section 2.5.6, Link-Local IPv6
 
590
          Unicast Addresses</citation>
627
591
        </term>
628
592
        <listitem>
629
 
          <variablelist>
630
 
            <varlistentry>
631
 
              <term>Section 2.2: <citetitle>Text Representation of
632
 
              Addresses</citetitle></term>
633
 
              <listitem><para/></listitem>
634
 
            </varlistentry>
635
 
            <varlistentry>
636
 
              <term>Section 2.5.5.2: <citetitle>IPv4-Mapped IPv6
637
 
              Address</citetitle></term>
638
 
              <listitem><para/></listitem>
639
 
            </varlistentry>
640
 
            <varlistentry>
641
 
            <term>Section 2.5.6, <citetitle>Link-Local IPv6 Unicast
642
 
            Addresses</citetitle></term>
643
 
            <listitem>
644
 
              <para>
645
 
                The clients use IPv6 link-local addresses, which are
646
 
                immediately usable since a link-local addresses is
647
 
                automatically assigned to a network interfaces when it
648
 
                is brought up.
649
 
              </para>
650
 
            </listitem>
651
 
            </varlistentry>
652
 
          </variablelist>
 
593
          <para>
 
594
            The clients use IPv6 link-local addresses, which are
 
595
            immediately usable since a link-local addresses is
 
596
            automatically assigned to a network interfaces when it is
 
597
            brought up.
 
598
          </para>
653
599
        </listitem>
654
600
      </varlistentry>
655
601
      <varlistentry>
656
602
        <term>
657
 
          RFC 4346: <citetitle>The Transport Layer Security (TLS)
658
 
          Protocol Version 1.1</citetitle>
 
603
          <citation>RFC 4346: <citetitle>The Transport Layer Security
 
604
          (TLS) Protocol Version 1.1</citetitle></citation>
659
605
        </term>
660
606
      <listitem>
661
607
        <para>
665
611
      </varlistentry>
666
612
      <varlistentry>
667
613
        <term>
668
 
          RFC 4880: <citetitle>OpenPGP Message Format</citetitle>
 
614
          <citation>RFC 4880: <citetitle>OpenPGP Message
 
615
          Format</citetitle></citation>
669
616
        </term>
670
617
      <listitem>
671
618
        <para>
675
622
      </varlistentry>
676
623
      <varlistentry>
677
624
        <term>
678
 
          RFC 5081: <citetitle>Using OpenPGP Keys for Transport Layer
679
 
          Security</citetitle>
 
625
          <citation>RFC 5081: <citetitle>Using OpenPGP Keys for
 
626
          Transport Layer Security</citetitle></citation>
680
627
        </term>
681
628
      <listitem>
682
629
        <para>
688
635
    </variablelist>
689
636
  </refsect1>
690
637
</refentry>
691
 
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692
 
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693
 
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694
 
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695
 
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