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  • Committer: Teddy Hogeborn
  • Date: 2009-01-06 22:21:53 UTC
  • Revision ID: teddy@fukt.bsnet.se-20090106222153-3b43cfdjyvz1032y
Tags: version-1.0.3-2
* debian/changelog (1.0.3-2): New entry.

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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 "2009-01-04">
 
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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>
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    <productnumber>&VERSION;</productnumber>
 
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    <productname>Mandos</productname>
 
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    <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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    </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>
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        This manual page is free software: you can redistribute it
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        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
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        later version.
42
 
      </para>
43
 
 
44
 
      <para>
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        This manual page is distributed in the hope that it will
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        be useful, but WITHOUT ANY WARRANTY; without even the
47
 
        implied warranty of MERCHANTABILITY or FITNESS FOR A
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        PARTICULAR PURPOSE.  See the GNU General Public License
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        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>
 
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    <xi:include href="legalnotice.xml"/>
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  </refentryinfo>
59
 
 
 
41
  
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  <refmeta>
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    <refentrytitle>&COMMANDNAME;</refentrytitle>
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    <manvolnum>8</manvolnum>
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  <refnamediv>
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    <refname><command>&COMMANDNAME;</command></refname>
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    <refpurpose>
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      Sends encrypted passwords to authenticated Mandos clients
 
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      Gives encrypted passwords to authenticated Mandos clients
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    </refpurpose>
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  </refnamediv>
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  <refsynopsisdiv>
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    <cmdsynopsis>
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      <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>
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      <arg>--servicename<arg choice="plain">NAME</arg></arg>
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      <arg>--configdir<arg choice="plain">DIRECTORY</arg></arg>
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      <arg>--debug</arg>
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    </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>
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      <arg>--debug</arg>
 
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      <group>
 
58
        <arg choice="plain"><option>--interface
 
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        <replaceable>NAME</replaceable></option></arg>
 
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        <arg choice="plain"><option>-i
 
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        <replaceable>NAME</replaceable></option></arg>
 
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      </group>
 
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      <sbr/>
 
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      <group>
 
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        <arg choice="plain"><option>--address
 
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        <replaceable>ADDRESS</replaceable></option></arg>
 
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        <arg choice="plain"><option>-a
 
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        <replaceable>ADDRESS</replaceable></option></arg>
 
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      </group>
 
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      <sbr/>
 
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      <group>
 
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        <arg choice="plain"><option>--port
 
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        <replaceable>PORT</replaceable></option></arg>
 
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        <arg choice="plain"><option>-p
 
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        <replaceable>PORT</replaceable></option></arg>
 
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      </group>
 
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      <sbr/>
 
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      <arg><option>--priority
 
79
      <replaceable>PRIORITY</replaceable></option></arg>
 
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      <sbr/>
 
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      <arg><option>--servicename
 
82
      <replaceable>NAME</replaceable></option></arg>
 
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      <sbr/>
 
84
      <arg><option>--configdir
 
85
      <replaceable>DIRECTORY</replaceable></option></arg>
 
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      <sbr/>
 
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      <arg><option>--debug</option></arg>
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    </cmdsynopsis>
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    <cmdsynopsis>
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      <command>&COMMANDNAME;</command>
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      <group choice="req">
96
 
        <arg choice="plain">-h</arg>
97
 
        <arg choice="plain">--help</arg>
 
92
        <arg choice="plain"><option>--help</option></arg>
 
93
        <arg choice="plain"><option>-h</option></arg>
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      </group>
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    </cmdsynopsis>
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    <cmdsynopsis>
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      <command>&COMMANDNAME;</command>
102
 
      <arg choice="plain">--version</arg>
 
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      <arg choice="plain"><option>--version</option></arg>
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    </cmdsynopsis>
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100
    <cmdsynopsis>
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      <command>&COMMANDNAME;</command>
106
 
      <arg choice="plain">--check</arg>
 
102
      <arg choice="plain"><option>--check</option></arg>
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    </cmdsynopsis>
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104
  </refsynopsisdiv>
109
 
 
 
105
  
110
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  <refsect1 id="description">
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    <title>DESCRIPTION</title>
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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.
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    </para>
124
 
 
125
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  </refsect1>
126
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127
122
  <refsect1 id="purpose">
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    <title>PURPOSE</title>
129
 
 
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    <para>
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      The purpose of this is to enable <emphasis>remote and unattended
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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
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  </refsect1>
138
131
  
139
132
  <refsect1 id="options">
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    <title>OPTIONS</title>
141
 
 
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    <variablelist>
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      <varlistentry>
144
 
        <term><literal>-h</literal>, <literal>--help</literal></term>
 
136
        <term><option>--help</option></term>
 
137
        <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>
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        </listitem>
150
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      </varlistentry>
151
 
 
 
144
      
152
145
      <varlistentry>
153
 
        <term><literal>-i</literal>, <literal>--interface <replaceable>
154
 
        IF</replaceable></literal></term>
 
146
        <term><option>--interface</option>
 
147
        <replaceable>NAME</replaceable></term>
 
148
        <term><option>-i</option>
 
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        <replaceable>NAME</replaceable></term>
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        <listitem>
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          <xi:include href="mandos-options.xml" xpointer="interface"/>
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        </listitem>
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      </varlistentry>
159
 
 
 
154
      
160
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      <varlistentry>
161
 
        <term><literal>-a</literal>, <literal>--address <replaceable>
162
 
        ADDRESS</replaceable></literal></term>
 
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        <term><option>--address
 
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        <replaceable>ADDRESS</replaceable></option></term>
 
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        <term><option>-a
 
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        <replaceable>ADDRESS</replaceable></option></term>
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        <listitem>
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          <xi:include href="mandos-options.xml" xpointer="address"/>
165
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        </listitem>
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      </varlistentry>
167
 
 
 
164
      
168
165
      <varlistentry>
169
 
        <term><literal>-p</literal>, <literal>--port <replaceable>
170
 
        PORT</replaceable></literal></term>
 
166
        <term><option>--port
 
167
        <replaceable>PORT</replaceable></option></term>
 
168
        <term><option>-p
 
169
        <replaceable>PORT</replaceable></option></term>
171
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        <listitem>
172
171
          <xi:include href="mandos-options.xml" xpointer="port"/>
173
172
        </listitem>
174
173
      </varlistentry>
175
 
 
 
174
      
176
175
      <varlistentry>
177
 
        <term><literal>--check</literal></term>
 
176
        <term><option>--check</option></term>
178
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        <listitem>
179
178
          <para>
180
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            Run the server’s self-tests.  This includes any unit
182
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          </para>
183
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        </listitem>
184
183
      </varlistentry>
185
 
 
 
184
      
186
185
      <varlistentry>
187
 
        <term><literal>--debug</literal></term>
 
186
        <term><option>--debug</option></term>
188
187
        <listitem>
189
188
          <xi:include href="mandos-options.xml" xpointer="debug"/>
190
189
        </listitem>
191
190
      </varlistentry>
192
 
 
 
191
      
193
192
      <varlistentry>
194
 
        <term><literal>--priority <replaceable>
195
 
        PRIORITY</replaceable></literal></term>
 
193
        <term><option>--priority <replaceable>
 
194
        PRIORITY</replaceable></option></term>
196
195
        <listitem>
197
196
          <xi:include href="mandos-options.xml" xpointer="priority"/>
198
197
        </listitem>
199
198
      </varlistentry>
200
 
 
 
199
      
201
200
      <varlistentry>
202
 
        <term><literal>--servicename <replaceable>NAME</replaceable>
203
 
        </literal></term>
 
201
        <term><option>--servicename
 
202
        <replaceable>NAME</replaceable></option></term>
204
203
        <listitem>
205
204
          <xi:include href="mandos-options.xml"
206
205
                      xpointer="servicename"/>
207
206
        </listitem>
208
207
      </varlistentry>
209
 
 
 
208
      
210
209
      <varlistentry>
211
 
        <term><literal>--configdir <replaceable>DIR</replaceable>
212
 
        </literal></term>
 
210
        <term><option>--configdir
 
211
        <replaceable>DIRECTORY</replaceable></option></term>
213
212
        <listitem>
214
213
          <para>
215
214
            Directory to search for configuration files.  Default is
221
220
          </para>
222
221
        </listitem>
223
222
      </varlistentry>
224
 
 
 
223
      
225
224
      <varlistentry>
226
 
        <term><literal>--version</literal></term>
 
225
        <term><option>--version</option></term>
227
226
        <listitem>
228
227
          <para>
229
228
            Prints the program version and exit.
232
231
      </varlistentry>
233
232
    </variablelist>
234
233
  </refsect1>
235
 
 
 
234
  
236
235
  <refsect1 id="overview">
237
236
    <title>OVERVIEW</title>
238
237
    <xi:include href="overview.xml"/>
239
238
    <para>
240
239
      This program is the server part.  It is a normal server program
241
240
      and will run in a normal system environment, not in an initial
242
 
      RAM disk environment.
 
241
      <acronym>RAM</acronym> disk environment.
243
242
    </para>
244
243
  </refsect1>
245
 
 
 
244
  
246
245
  <refsect1 id="protocol">
247
246
    <title>NETWORK PROTOCOL</title>
248
247
    <para>
274
273
        <entry>-><!-- &rarr; --></entry>
275
274
      </row>
276
275
      <row>
277
 
        <entry><quote><literal>1\r\en</literal></quote></entry>
 
276
        <entry><quote><literal>1\r\n</literal></quote></entry>
278
277
        <entry>-><!-- &rarr; --></entry>
279
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      </row>
280
279
      <row>
300
299
      </row>
301
300
    </tbody></tgroup></table>
302
301
  </refsect1>
303
 
 
 
302
  
304
303
  <refsect1 id="checking">
305
304
    <title>CHECKING</title>
306
305
    <para>
310
309
      longer eligible to receive the encrypted password.  The timeout,
311
310
      checker program, and interval between checks can be configured
312
311
      both globally and per client; see <citerefentry>
313
 
      <refentrytitle>mandos.conf</refentrytitle>
314
 
      <manvolnum>5</manvolnum></citerefentry> and <citerefentry>
315
312
      <refentrytitle>mandos-clients.conf</refentrytitle>
316
313
      <manvolnum>5</manvolnum></citerefentry>.
317
314
    </para>
318
315
  </refsect1>
319
 
 
 
316
  
320
317
  <refsect1 id="logging">
321
318
    <title>LOGGING</title>
322
319
    <para>
323
 
      The server will send log messaged with various severity levels
324
 
      to <filename>/dev/log</filename>.  With the
 
320
      The server will send log message with various severity levels to
 
321
      <filename>/dev/log</filename>.  With the
325
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      <option>--debug</option> option, it will log even more messages,
326
323
      and also show them on the console.
327
324
    </para>
328
325
  </refsect1>
329
 
 
 
326
  
330
327
  <refsect1 id="exit_status">
331
328
    <title>EXIT STATUS</title>
332
329
    <para>
334
331
      critical error is encountered.
335
332
    </para>
336
333
  </refsect1>
337
 
 
 
334
  
338
335
  <refsect1 id="environment">
339
336
    <title>ENVIRONMENT</title>
340
337
    <variablelist>
341
338
      <varlistentry>
342
 
        <term><varname>PATH</varname></term>
 
339
        <term><envar>PATH</envar></term>
343
340
        <listitem>
344
341
          <para>
345
342
            To start the configured checker (see <xref
348
345
            <varname>PATH</varname> to search for matching commands if
349
346
            an absolute path is not given.  See <citerefentry>
350
347
            <refentrytitle>sh</refentrytitle><manvolnum>1</manvolnum>
351
 
          </citerefentry>
 
348
            </citerefentry>.
352
349
          </para>
353
350
        </listitem>
354
351
      </varlistentry>
355
352
    </variablelist>
356
353
  </refsect1>
357
 
 
358
 
  <refsect1 id="file">
 
354
  
 
355
  <refsect1 id="files">
359
356
    <title>FILES</title>
360
357
    <para>
361
358
      Use the <option>--configdir</option> option to change where
384
381
        </listitem>
385
382
      </varlistentry>
386
383
      <varlistentry>
387
 
        <term><filename>/var/run/mandos/mandos.pid</filename></term>
 
384
        <term><filename>/var/run/mandos.pid</filename></term>
388
385
        <listitem>
389
386
          <para>
390
387
            The file containing the process id of
425
422
      Currently, if a client is declared <quote>invalid</quote> due to
426
423
      having timed out, the server does not record this fact onto
427
424
      permanent storage.  This has some security implications, see
428
 
      <xref linkend="CLIENTS"/>.
 
425
      <xref linkend="clients"/>.
429
426
    </para>
430
427
    <para>
431
428
      There is currently no way of querying the server of the current
439
436
      Debug mode is conflated with running in the foreground.
440
437
    </para>
441
438
    <para>
442
 
      The console log messages does not show a timestamp.
 
439
      The console log messages does not show a time stamp.
 
440
    </para>
 
441
    <para>
 
442
      This server does not check the expire time of clients’ OpenPGP
 
443
      keys.
443
444
    </para>
444
445
  </refsect1>
445
446
  
450
451
        Normal invocation needs no options:
451
452
      </para>
452
453
      <para>
453
 
        <userinput>mandos</userinput>
 
454
        <userinput>&COMMANDNAME;</userinput>
454
455
      </para>
455
456
    </informalexample>
456
457
    <informalexample>
463
464
      <para>
464
465
 
465
466
<!-- do not wrap this line -->
466
 
<userinput>mandos --debug --configdir ~/mandos --servicename Test</userinput>
 
467
<userinput>&COMMANDNAME; --debug --configdir ~/mandos --servicename Test</userinput>
467
468
 
468
469
      </para>
469
470
    </informalexample>
475
476
      <para>
476
477
 
477
478
<!-- do not wrap this line -->
478
 
<userinput>mandos --interface eth7 --address fe80::aede:48ff:fe71:f6f2</userinput>
 
479
<userinput>&COMMANDNAME; --interface eth7 --address fe80::aede:48ff:fe71:f6f2</userinput>
479
480
 
480
481
      </para>
481
482
    </informalexample>
482
483
  </refsect1>
483
 
 
 
484
  
484
485
  <refsect1 id="security">
485
486
    <title>SECURITY</title>
486
 
    <refsect2 id="SERVER">
 
487
    <refsect2 id="server">
487
488
      <title>SERVER</title>
488
489
      <para>
489
490
        Running this <command>&COMMANDNAME;</command> server program
490
491
        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.
 
492
        computer running it.  The program switches to a non-root user
 
493
        soon after startup.
493
494
      </para>
494
495
    </refsect2>
495
 
    <refsect2 id="CLIENTS">
 
496
    <refsect2 id="clients">
496
497
      <title>CLIENTS</title>
497
498
      <para>
498
499
        The server only gives out its stored data to clients which
505
506
        <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
506
507
        <manvolnum>5</manvolnum></citerefentry>)
507
508
        <emphasis>must</emphasis> be made non-readable by anyone
508
 
        except the user running the server.
 
509
        except the user starting the server (usually root).
509
510
      </para>
510
511
      <para>
511
512
        As detailed in <xref linkend="checking"/>, the status of all
522
523
        restarting servers if it is suspected that a client has, in
523
524
        fact, been compromised by parties who may now be running a
524
525
        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
 
526
        initial <acronym>RAM</acronym> image of the client host.  What
 
527
        should be done in that case (if restarting the server program
 
528
        really is necessary) is to stop the server program, edit the
528
529
        configuration file to omit any suspect clients, and restart
529
530
        the server program.
530
531
      </para>
531
532
      <para>
532
533
        For more details on client-side security, see
533
 
        <citerefentry><refentrytitle>password-request</refentrytitle>
 
534
        <citerefentry><refentrytitle>mandos-client</refentrytitle>
534
535
        <manvolnum>8mandos</manvolnum></citerefentry>.
535
536
      </para>
536
537
    </refsect2>
537
538
  </refsect1>
538
 
 
 
539
  
539
540
  <refsect1 id="see_also">
540
541
    <title>SEE ALSO</title>
 
542
    <para>
 
543
      <citerefentry>
 
544
        <refentrytitle>mandos-clients.conf</refentrytitle>
 
545
        <manvolnum>5</manvolnum></citerefentry>, <citerefentry>
 
546
        <refentrytitle>mandos.conf</refentrytitle>
 
547
        <manvolnum>5</manvolnum></citerefentry>, <citerefentry>
 
548
        <refentrytitle>mandos-client</refentrytitle>
 
549
        <manvolnum>8mandos</manvolnum></citerefentry>, <citerefentry>
 
550
        <refentrytitle>sh</refentrytitle><manvolnum>1</manvolnum>
 
551
      </citerefentry>
 
552
    </para>
541
553
    <variablelist>
542
554
      <varlistentry>
543
555
        <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
556
          <ulink url="http://www.zeroconf.org/">Zeroconf</ulink>
561
557
        </term>
562
558
        <listitem>
579
575
      </varlistentry>
580
576
      <varlistentry>
581
577
        <term>
582
 
          <ulink
583
 
              url="http://www.gnu.org/software/gnutls/">GnuTLS</ulink>
 
578
          <ulink url="http://www.gnu.org/software/gnutls/"
 
579
          >GnuTLS</ulink>
584
580
        </term>
585
581
      <listitem>
586
582
        <para>
592
588
      </varlistentry>
593
589
      <varlistentry>
594
590
        <term>
595
 
          <citation>RFC 4291: <citetitle>IP Version 6 Addressing
596
 
          Architecture</citetitle>, section 2.5.6, Link-Local IPv6
597
 
          Unicast Addresses</citation>
 
591
          RFC 4291: <citetitle>IP Version 6 Addressing
 
592
          Architecture</citetitle>
598
593
        </term>
599
594
        <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>
 
595
          <variablelist>
 
596
            <varlistentry>
 
597
              <term>Section 2.2: <citetitle>Text Representation of
 
598
              Addresses</citetitle></term>
 
599
              <listitem><para/></listitem>
 
600
            </varlistentry>
 
601
            <varlistentry>
 
602
              <term>Section 2.5.5.2: <citetitle>IPv4-Mapped IPv6
 
603
              Address</citetitle></term>
 
604
              <listitem><para/></listitem>
 
605
            </varlistentry>
 
606
            <varlistentry>
 
607
            <term>Section 2.5.6, <citetitle>Link-Local IPv6 Unicast
 
608
            Addresses</citetitle></term>
 
609
            <listitem>
 
610
              <para>
 
611
                The clients use IPv6 link-local addresses, which are
 
612
                immediately usable since a link-local addresses is
 
613
                automatically assigned to a network interfaces when it
 
614
                is brought up.
 
615
              </para>
 
616
            </listitem>
 
617
            </varlistentry>
 
618
          </variablelist>
606
619
        </listitem>
607
620
      </varlistentry>
608
621
      <varlistentry>
609
622
        <term>
610
 
          <citation>RFC 4346: <citetitle>The Transport Layer Security
611
 
          (TLS) Protocol Version 1.1</citetitle></citation>
 
623
          RFC 4346: <citetitle>The Transport Layer Security (TLS)
 
624
          Protocol Version 1.1</citetitle>
612
625
        </term>
613
626
      <listitem>
614
627
        <para>
618
631
      </varlistentry>
619
632
      <varlistentry>
620
633
        <term>
621
 
          <citation>RFC 4880: <citetitle>OpenPGP Message
622
 
          Format</citetitle></citation>
 
634
          RFC 4880: <citetitle>OpenPGP Message Format</citetitle>
623
635
        </term>
624
636
      <listitem>
625
637
        <para>
629
641
      </varlistentry>
630
642
      <varlistentry>
631
643
        <term>
632
 
          <citation>RFC 5081: <citetitle>Using OpenPGP Keys for
633
 
          Transport Layer Security</citetitle></citation>
 
644
          RFC 5081: <citetitle>Using OpenPGP Keys for Transport Layer
 
645
          Security</citetitle>
634
646
        </term>
635
647
      <listitem>
636
648
        <para>
642
654
    </variablelist>
643
655
  </refsect1>
644
656
</refentry>
 
657
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658
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