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  • Committer: Teddy Hogeborn
  • Date: 2009-05-17 00:50:09 UTC
  • Revision ID: teddy@fukt.bsnet.se-20090517005009-c0iptxampo6nf177
* initramfs-tools-hook-conf: Security bug fix: Add code to handle
                             being called by "mkinitramfs-kpkg"
                             instead of "update-initramfs".

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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 "2009-02-24">
 
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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>
 
16
    <date>&TIMESTAMP;</date>
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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>
 
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      <year>2009</year>
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      <holder>Teddy Hogeborn</holder>
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      <holder>Björn Påhlsson</holder>
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    </copyright>
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    <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>
 
39
    <xi:include href="legalnotice.xml"/>
58
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  </refentryinfo>
59
 
 
 
41
  
60
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  <refmeta>
61
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    <refentrytitle>&COMMANDNAME;</refentrytitle>
62
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    <manvolnum>8</manvolnum>
65
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  <refnamediv>
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    <refname><command>&COMMANDNAME;</command></refname>
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    <refpurpose>
68
 
      Sends encrypted passwords to authenticated Mandos clients
 
50
      Gives encrypted passwords to authenticated Mandos clients
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    </refpurpose>
70
52
  </refnamediv>
71
 
 
 
53
  
72
54
  <refsynopsisdiv>
73
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    <cmdsynopsis>
74
56
      <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>
 
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-ipv6</option></arg>
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    </cmdsynopsis>
93
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    <cmdsynopsis>
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92
      <command>&COMMANDNAME;</command>
95
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      <group choice="req">
96
 
        <arg choice="plain">-h</arg>
97
 
        <arg choice="plain">--help</arg>
 
94
        <arg choice="plain"><option>--help</option></arg>
 
95
        <arg choice="plain"><option>-h</option></arg>
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      </group>
99
97
    </cmdsynopsis>
100
98
    <cmdsynopsis>
101
99
      <command>&COMMANDNAME;</command>
102
 
      <arg choice="plain">--version</arg>
 
100
      <arg choice="plain"><option>--version</option></arg>
103
101
    </cmdsynopsis>
104
102
    <cmdsynopsis>
105
103
      <command>&COMMANDNAME;</command>
106
 
      <arg choice="plain">--check</arg>
 
104
      <arg choice="plain"><option>--check</option></arg>
107
105
    </cmdsynopsis>
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106
  </refsynopsisdiv>
109
 
 
 
107
  
110
108
  <refsect1 id="description">
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    <title>DESCRIPTION</title>
112
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    <para>
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      Any authenticated client is then given the stored pre-encrypted
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      password for that specific client.
123
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    </para>
124
 
 
125
122
  </refsect1>
126
123
  
127
124
  <refsect1 id="purpose">
128
125
    <title>PURPOSE</title>
129
 
 
130
126
    <para>
131
127
      The purpose of this is to enable <emphasis>remote and unattended
132
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      rebooting</emphasis> of client host computer with an
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      <emphasis>encrypted root file system</emphasis>.  See <xref
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      linkend="overview"/> for details.
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    </para>
136
 
 
137
132
  </refsect1>
138
133
  
139
134
  <refsect1 id="options">
140
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    <title>OPTIONS</title>
141
 
 
142
136
    <variablelist>
143
137
      <varlistentry>
144
 
        <term><literal>-h</literal>, <literal>--help</literal></term>
 
138
        <term><option>--help</option></term>
 
139
        <term><option>-h</option></term>
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        <listitem>
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          <para>
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            Show a help message and exit
148
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          </para>
149
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        </listitem>
150
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      </varlistentry>
151
 
 
 
146
      
152
147
      <varlistentry>
153
 
        <term><literal>-i</literal>, <literal>--interface <replaceable>
154
 
        IF</replaceable></literal></term>
 
148
        <term><option>--interface</option>
 
149
        <replaceable>NAME</replaceable></term>
 
150
        <term><option>-i</option>
 
151
        <replaceable>NAME</replaceable></term>
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        <listitem>
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          <xi:include href="mandos-options.xml" xpointer="interface"/>
157
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        </listitem>
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      </varlistentry>
159
 
 
 
156
      
160
157
      <varlistentry>
161
 
        <term><literal>-a</literal>, <literal>--address <replaceable>
162
 
        ADDRESS</replaceable></literal></term>
 
158
        <term><option>--address
 
159
        <replaceable>ADDRESS</replaceable></option></term>
 
160
        <term><option>-a
 
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        <replaceable>ADDRESS</replaceable></option></term>
163
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        <listitem>
164
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          <xi:include href="mandos-options.xml" xpointer="address"/>
165
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        </listitem>
166
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      </varlistentry>
167
 
 
 
166
      
168
167
      <varlistentry>
169
 
        <term><literal>-p</literal>, <literal>--port <replaceable>
170
 
        PORT</replaceable></literal></term>
 
168
        <term><option>--port
 
169
        <replaceable>PORT</replaceable></option></term>
 
170
        <term><option>-p
 
171
        <replaceable>PORT</replaceable></option></term>
171
172
        <listitem>
172
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          <xi:include href="mandos-options.xml" xpointer="port"/>
173
174
        </listitem>
174
175
      </varlistentry>
175
 
 
 
176
      
176
177
      <varlistentry>
177
 
        <term><literal>--check</literal></term>
 
178
        <term><option>--check</option></term>
178
179
        <listitem>
179
180
          <para>
180
181
            Run the server’s self-tests.  This includes any unit
182
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          </para>
183
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        </listitem>
184
185
      </varlistentry>
185
 
 
 
186
      
186
187
      <varlistentry>
187
 
        <term><literal>--debug</literal></term>
 
188
        <term><option>--debug</option></term>
188
189
        <listitem>
189
190
          <xi:include href="mandos-options.xml" xpointer="debug"/>
190
191
        </listitem>
191
192
      </varlistentry>
192
 
 
 
193
      
193
194
      <varlistentry>
194
 
        <term><literal>--priority <replaceable>
195
 
        PRIORITY</replaceable></literal></term>
 
195
        <term><option>--priority <replaceable>
 
196
        PRIORITY</replaceable></option></term>
196
197
        <listitem>
197
198
          <xi:include href="mandos-options.xml" xpointer="priority"/>
198
199
        </listitem>
199
200
      </varlistentry>
200
 
 
 
201
      
201
202
      <varlistentry>
202
 
        <term><literal>--servicename <replaceable>NAME</replaceable>
203
 
        </literal></term>
 
203
        <term><option>--servicename
 
204
        <replaceable>NAME</replaceable></option></term>
204
205
        <listitem>
205
206
          <xi:include href="mandos-options.xml"
206
207
                      xpointer="servicename"/>
207
208
        </listitem>
208
209
      </varlistentry>
209
 
 
 
210
      
210
211
      <varlistentry>
211
 
        <term><literal>--configdir <replaceable>DIR</replaceable>
212
 
        </literal></term>
 
212
        <term><option>--configdir
 
213
        <replaceable>DIRECTORY</replaceable></option></term>
213
214
        <listitem>
214
215
          <para>
215
216
            Directory to search for configuration files.  Default is
221
222
          </para>
222
223
        </listitem>
223
224
      </varlistentry>
224
 
 
 
225
      
225
226
      <varlistentry>
226
 
        <term><literal>--version</literal></term>
 
227
        <term><option>--version</option></term>
227
228
        <listitem>
228
229
          <para>
229
230
            Prints the program version and exit.
230
231
          </para>
231
232
        </listitem>
232
233
      </varlistentry>
 
234
      
 
235
      <varlistentry>
 
236
        <term><option>--no-ipv6</option></term>
 
237
        <listitem>
 
238
          <xi:include href="mandos-options.xml" xpointer="ipv6"/>
 
239
        </listitem>
 
240
      </varlistentry>
233
241
    </variablelist>
234
242
  </refsect1>
235
 
 
 
243
  
236
244
  <refsect1 id="overview">
237
245
    <title>OVERVIEW</title>
238
246
    <xi:include href="overview.xml"/>
239
247
    <para>
240
248
      This program is the server part.  It is a normal server program
241
249
      and will run in a normal system environment, not in an initial
242
 
      RAM disk environment.
 
250
      <acronym>RAM</acronym> disk environment.
243
251
    </para>
244
252
  </refsect1>
245
 
 
 
253
  
246
254
  <refsect1 id="protocol">
247
255
    <title>NETWORK PROTOCOL</title>
248
256
    <para>
274
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        <entry>-><!-- &rarr; --></entry>
275
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      </row>
276
284
      <row>
277
 
        <entry><quote><literal>1\r\en</literal></quote></entry>
 
285
        <entry><quote><literal>1\r\n</literal></quote></entry>
278
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        <entry>-><!-- &rarr; --></entry>
279
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      </row>
280
288
      <row>
300
308
      </row>
301
309
    </tbody></tgroup></table>
302
310
  </refsect1>
303
 
 
 
311
  
304
312
  <refsect1 id="checking">
305
313
    <title>CHECKING</title>
306
314
    <para>
310
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      longer eligible to receive the encrypted password.  The timeout,
311
319
      checker program, and interval between checks can be configured
312
320
      both globally and per client; see <citerefentry>
313
 
      <refentrytitle>mandos.conf</refentrytitle>
314
 
      <manvolnum>5</manvolnum></citerefentry> and <citerefentry>
315
321
      <refentrytitle>mandos-clients.conf</refentrytitle>
316
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      <manvolnum>5</manvolnum></citerefentry>.
317
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    </para>
318
324
  </refsect1>
319
 
 
 
325
  
320
326
  <refsect1 id="logging">
321
327
    <title>LOGGING</title>
322
328
    <para>
323
 
      The server will send log messaged with various severity levels
324
 
      to <filename>/dev/log</filename>.  With the
 
329
      The server will send log message with various severity levels to
 
330
      <filename>/dev/log</filename>.  With the
325
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      <option>--debug</option> option, it will log even more messages,
326
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      and also show them on the console.
327
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    </para>
328
334
  </refsect1>
329
 
 
 
335
  
330
336
  <refsect1 id="exit_status">
331
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    <title>EXIT STATUS</title>
332
338
    <para>
334
340
      critical error is encountered.
335
341
    </para>
336
342
  </refsect1>
337
 
 
 
343
  
338
344
  <refsect1 id="environment">
339
345
    <title>ENVIRONMENT</title>
340
346
    <variablelist>
341
347
      <varlistentry>
342
 
        <term><varname>PATH</varname></term>
 
348
        <term><envar>PATH</envar></term>
343
349
        <listitem>
344
350
          <para>
345
351
            To start the configured checker (see <xref
348
354
            <varname>PATH</varname> to search for matching commands if
349
355
            an absolute path is not given.  See <citerefentry>
350
356
            <refentrytitle>sh</refentrytitle><manvolnum>1</manvolnum>
351
 
          </citerefentry>
 
357
            </citerefentry>.
352
358
          </para>
353
359
        </listitem>
354
360
      </varlistentry>
355
361
    </variablelist>
356
362
  </refsect1>
357
 
 
358
 
  <refsect1 id="file">
 
363
  
 
364
  <refsect1 id="files">
359
365
    <title>FILES</title>
360
366
    <para>
361
367
      Use the <option>--configdir</option> option to change where
384
390
        </listitem>
385
391
      </varlistentry>
386
392
      <varlistentry>
387
 
        <term><filename>/var/run/mandos/mandos.pid</filename></term>
 
393
        <term><filename>/var/run/mandos.pid</filename></term>
388
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        <listitem>
389
395
          <para>
390
396
            The file containing the process id of
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      Currently, if a client is declared <quote>invalid</quote> due to
426
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      having timed out, the server does not record this fact onto
427
433
      permanent storage.  This has some security implications, see
428
 
      <xref linkend="CLIENTS"/>.
 
434
      <xref linkend="clients"/>.
429
435
    </para>
430
436
    <para>
431
437
      There is currently no way of querying the server of the current
439
445
      Debug mode is conflated with running in the foreground.
440
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    </para>
441
447
    <para>
442
 
      The console log messages does not show a timestamp.
 
448
      The console log messages do not show a time stamp.
 
449
    </para>
 
450
    <para>
 
451
      This server does not check the expire time of clients’ OpenPGP
 
452
      keys.
443
453
    </para>
444
454
  </refsect1>
445
455
  
450
460
        Normal invocation needs no options:
451
461
      </para>
452
462
      <para>
453
 
        <userinput>mandos</userinput>
 
463
        <userinput>&COMMANDNAME;</userinput>
454
464
      </para>
455
465
    </informalexample>
456
466
    <informalexample>
463
473
      <para>
464
474
 
465
475
<!-- do not wrap this line -->
466
 
<userinput>mandos --debug --configdir ~/mandos --servicename Test</userinput>
 
476
<userinput>&COMMANDNAME; --debug --configdir ~/mandos --servicename Test</userinput>
467
477
 
468
478
      </para>
469
479
    </informalexample>
475
485
      <para>
476
486
 
477
487
<!-- do not wrap this line -->
478
 
<userinput>mandos --interface eth7 --address fe80::aede:48ff:fe71:f6f2</userinput>
 
488
<userinput>&COMMANDNAME; --interface eth7 --address fe80::aede:48ff:fe71:f6f2</userinput>
479
489
 
480
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      </para>
481
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    </informalexample>
482
492
  </refsect1>
483
 
 
 
493
  
484
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  <refsect1 id="security">
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    <title>SECURITY</title>
486
 
    <refsect2 id="SERVER">
 
496
    <refsect2 id="server">
487
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      <title>SERVER</title>
488
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      <para>
489
499
        Running this <command>&COMMANDNAME;</command> server program
490
500
        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.
 
501
        computer running it.  The program switches to a non-root user
 
502
        soon after startup.
493
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      </para>
494
504
    </refsect2>
495
 
    <refsect2 id="CLIENTS">
 
505
    <refsect2 id="clients">
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506
      <title>CLIENTS</title>
497
507
      <para>
498
508
        The server only gives out its stored data to clients which
505
515
        <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
506
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        <manvolnum>5</manvolnum></citerefentry>)
507
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        <emphasis>must</emphasis> be made non-readable by anyone
508
 
        except the user running the server.
 
518
        except the user starting the server (usually root).
509
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      </para>
510
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      <para>
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        As detailed in <xref linkend="checking"/>, the status of all
522
532
        restarting servers if it is suspected that a client has, in
523
533
        fact, been compromised by parties who may now be running a
524
534
        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
 
535
        initial <acronym>RAM</acronym> image of the client host.  What
 
536
        should be done in that case (if restarting the server program
 
537
        really is necessary) is to stop the server program, edit the
528
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        configuration file to omit any suspect clients, and restart
529
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        the server program.
530
540
      </para>
531
541
      <para>
532
542
        For more details on client-side security, see
533
 
        <citerefentry><refentrytitle>password-request</refentrytitle>
 
543
        <citerefentry><refentrytitle>mandos-client</refentrytitle>
534
544
        <manvolnum>8mandos</manvolnum></citerefentry>.
535
545
      </para>
536
546
    </refsect2>
537
547
  </refsect1>
538
 
 
 
548
  
539
549
  <refsect1 id="see_also">
540
550
    <title>SEE ALSO</title>
 
551
    <para>
 
552
      <citerefentry>
 
553
        <refentrytitle>mandos-clients.conf</refentrytitle>
 
554
        <manvolnum>5</manvolnum></citerefentry>, <citerefentry>
 
555
        <refentrytitle>mandos.conf</refentrytitle>
 
556
        <manvolnum>5</manvolnum></citerefentry>, <citerefentry>
 
557
        <refentrytitle>mandos-client</refentrytitle>
 
558
        <manvolnum>8mandos</manvolnum></citerefentry>, <citerefentry>
 
559
        <refentrytitle>sh</refentrytitle><manvolnum>1</manvolnum>
 
560
      </citerefentry>
 
561
    </para>
541
562
    <variablelist>
542
563
      <varlistentry>
543
564
        <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
565
          <ulink url="http://www.zeroconf.org/">Zeroconf</ulink>
561
566
        </term>
562
567
        <listitem>
579
584
      </varlistentry>
580
585
      <varlistentry>
581
586
        <term>
582
 
          <ulink
583
 
              url="http://www.gnu.org/software/gnutls/">GnuTLS</ulink>
 
587
          <ulink url="http://www.gnu.org/software/gnutls/"
 
588
          >GnuTLS</ulink>
584
589
        </term>
585
590
      <listitem>
586
591
        <para>
592
597
      </varlistentry>
593
598
      <varlistentry>
594
599
        <term>
595
 
          <citation>RFC 4291: <citetitle>IP Version 6 Addressing
596
 
          Architecture</citetitle>, section 2.5.6, Link-Local IPv6
597
 
          Unicast Addresses</citation>
 
600
          RFC 4291: <citetitle>IP Version 6 Addressing
 
601
          Architecture</citetitle>
598
602
        </term>
599
603
        <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>
 
604
          <variablelist>
 
605
            <varlistentry>
 
606
              <term>Section 2.2: <citetitle>Text Representation of
 
607
              Addresses</citetitle></term>
 
608
              <listitem><para/></listitem>
 
609
            </varlistentry>
 
610
            <varlistentry>
 
611
              <term>Section 2.5.5.2: <citetitle>IPv4-Mapped IPv6
 
612
              Address</citetitle></term>
 
613
              <listitem><para/></listitem>
 
614
            </varlistentry>
 
615
            <varlistentry>
 
616
            <term>Section 2.5.6, <citetitle>Link-Local IPv6 Unicast
 
617
            Addresses</citetitle></term>
 
618
            <listitem>
 
619
              <para>
 
620
                The clients use IPv6 link-local addresses, which are
 
621
                immediately usable since a link-local addresses is
 
622
                automatically assigned to a network interfaces when it
 
623
                is brought up.
 
624
              </para>
 
625
            </listitem>
 
626
            </varlistentry>
 
627
          </variablelist>
606
628
        </listitem>
607
629
      </varlistentry>
608
630
      <varlistentry>
609
631
        <term>
610
 
          <citation>RFC 4346: <citetitle>The Transport Layer Security
611
 
          (TLS) Protocol Version 1.1</citetitle></citation>
 
632
          RFC 4346: <citetitle>The Transport Layer Security (TLS)
 
633
          Protocol Version 1.1</citetitle>
612
634
        </term>
613
635
      <listitem>
614
636
        <para>
618
640
      </varlistentry>
619
641
      <varlistentry>
620
642
        <term>
621
 
          <citation>RFC 4880: <citetitle>OpenPGP Message
622
 
          Format</citetitle></citation>
 
643
          RFC 4880: <citetitle>OpenPGP Message Format</citetitle>
623
644
        </term>
624
645
      <listitem>
625
646
        <para>
629
650
      </varlistentry>
630
651
      <varlistentry>
631
652
        <term>
632
 
          <citation>RFC 5081: <citetitle>Using OpenPGP Keys for
633
 
          Transport Layer Security</citetitle></citation>
 
653
          RFC 5081: <citetitle>Using OpenPGP Keys for Transport Layer
 
654
          Security</citetitle>
634
655
        </term>
635
656
      <listitem>
636
657
        <para>
642
663
    </variablelist>
643
664
  </refsect1>
644
665
</refentry>
 
666
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667
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669
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