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  • Committer: Teddy Hogeborn
  • Date: 2015-10-24 17:37:16 UTC
  • mfrom: (790 trunk)
  • mto: This revision was merged to the branch mainline in revision 791.
  • Revision ID: teddy@recompile.se-20151024173716-cmst924xz22yq58z
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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 "2015-07-20">
 
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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>
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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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        <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>
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          <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>
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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>
 
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      <year>2013</year>
 
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      <year>2014</year>
 
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      <year>2015</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
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        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>
 
45
    <xi:include href="legalnotice.xml"/>
58
46
  </refentryinfo>
59
 
 
 
47
  
60
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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
 
56
      Gives encrypted passwords to authenticated Mandos clients
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    </refpurpose>
70
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  </refnamediv>
71
 
 
 
59
  
72
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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>
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>
 
63
      <group>
 
64
        <arg choice="plain"><option>--interface
 
65
        <replaceable>NAME</replaceable></option></arg>
 
66
        <arg choice="plain"><option>-i
 
67
        <replaceable>NAME</replaceable></option></arg>
 
68
      </group>
 
69
      <sbr/>
 
70
      <group>
 
71
        <arg choice="plain"><option>--address
 
72
        <replaceable>ADDRESS</replaceable></option></arg>
 
73
        <arg choice="plain"><option>-a
 
74
        <replaceable>ADDRESS</replaceable></option></arg>
 
75
      </group>
 
76
      <sbr/>
 
77
      <group>
 
78
        <arg choice="plain"><option>--port
 
79
        <replaceable>PORT</replaceable></option></arg>
 
80
        <arg choice="plain"><option>-p
 
81
        <replaceable>PORT</replaceable></option></arg>
 
82
      </group>
 
83
      <sbr/>
 
84
      <arg><option>--priority
 
85
      <replaceable>PRIORITY</replaceable></option></arg>
 
86
      <sbr/>
 
87
      <arg><option>--servicename
 
88
      <replaceable>NAME</replaceable></option></arg>
 
89
      <sbr/>
 
90
      <arg><option>--configdir
 
91
      <replaceable>DIRECTORY</replaceable></option></arg>
 
92
      <sbr/>
 
93
      <arg><option>--debug</option></arg>
 
94
      <sbr/>
 
95
      <arg><option>--debuglevel
 
96
      <replaceable>LEVEL</replaceable></option></arg>
 
97
      <sbr/>
 
98
      <arg><option>--no-dbus</option></arg>
 
99
      <sbr/>
 
100
      <arg><option>--no-ipv6</option></arg>
 
101
      <sbr/>
 
102
      <arg><option>--no-restore</option></arg>
 
103
      <sbr/>
 
104
      <arg><option>--statedir
 
105
      <replaceable>DIRECTORY</replaceable></option></arg>
 
106
      <sbr/>
 
107
      <arg><option>--socket
 
108
      <replaceable>FD</replaceable></option></arg>
 
109
      <sbr/>
 
110
      <arg><option>--foreground</option></arg>
 
111
      <sbr/>
 
112
      <arg><option>--no-zeroconf</option></arg>
92
113
    </cmdsynopsis>
93
114
    <cmdsynopsis>
94
115
      <command>&COMMANDNAME;</command>
95
116
      <group choice="req">
96
 
        <arg choice="plain">-h</arg>
97
 
        <arg choice="plain">--help</arg>
 
117
        <arg choice="plain"><option>--help</option></arg>
 
118
        <arg choice="plain"><option>-h</option></arg>
98
119
      </group>
99
120
    </cmdsynopsis>
100
121
    <cmdsynopsis>
101
122
      <command>&COMMANDNAME;</command>
102
 
      <arg choice="plain">--version</arg>
 
123
      <arg choice="plain"><option>--version</option></arg>
103
124
    </cmdsynopsis>
104
125
    <cmdsynopsis>
105
126
      <command>&COMMANDNAME;</command>
106
 
      <arg choice="plain">--check</arg>
 
127
      <arg choice="plain"><option>--check</option></arg>
107
128
    </cmdsynopsis>
108
129
  </refsynopsisdiv>
109
 
 
 
130
  
110
131
  <refsect1 id="description">
111
132
    <title>DESCRIPTION</title>
112
133
    <para>
113
134
      <command>&COMMANDNAME;</command> is a server daemon which
114
135
      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.
 
136
      client host computers. For an introduction, see
 
137
      <citerefentry><refentrytitle>intro</refentrytitle>
 
138
      <manvolnum>8mandos</manvolnum></citerefentry>. The Mandos server
 
139
      uses Zeroconf to announce itself on the local network, and uses
 
140
      TLS to communicate securely with and to authenticate the
 
141
      clients.  The Mandos server uses IPv6 to allow Mandos clients to
 
142
      use IPv6 link-local addresses, since the clients will probably
 
143
      not have any other addresses configured (see <xref
 
144
      linkend="overview"/>).  Any authenticated client is then given
 
145
      the stored pre-encrypted password for that specific client.
123
146
    </para>
124
 
 
125
147
  </refsect1>
126
148
  
127
149
  <refsect1 id="purpose">
128
150
    <title>PURPOSE</title>
129
 
 
130
151
    <para>
131
152
      The purpose of this is to enable <emphasis>remote and unattended
132
153
      rebooting</emphasis> of client host computer with an
133
154
      <emphasis>encrypted root file system</emphasis>.  See <xref
134
155
      linkend="overview"/> for details.
135
156
    </para>
136
 
 
137
157
  </refsect1>
138
158
  
139
159
  <refsect1 id="options">
140
160
    <title>OPTIONS</title>
141
 
 
142
161
    <variablelist>
143
162
      <varlistentry>
144
 
        <term><literal>-h</literal>, <literal>--help</literal></term>
 
163
        <term><option>--help</option></term>
 
164
        <term><option>-h</option></term>
145
165
        <listitem>
146
166
          <para>
147
167
            Show a help message and exit
148
168
          </para>
149
169
        </listitem>
150
170
      </varlistentry>
151
 
 
 
171
      
152
172
      <varlistentry>
153
 
        <term><literal>-i</literal>, <literal>--interface <replaceable>
154
 
        IF</replaceable></literal></term>
 
173
        <term><option>--interface</option>
 
174
        <replaceable>NAME</replaceable></term>
 
175
        <term><option>-i</option>
 
176
        <replaceable>NAME</replaceable></term>
155
177
        <listitem>
156
178
          <xi:include href="mandos-options.xml" xpointer="interface"/>
157
179
        </listitem>
158
180
      </varlistentry>
159
 
 
 
181
      
160
182
      <varlistentry>
161
 
        <term><literal>-a</literal>, <literal>--address <replaceable>
162
 
        ADDRESS</replaceable></literal></term>
 
183
        <term><option>--address
 
184
        <replaceable>ADDRESS</replaceable></option></term>
 
185
        <term><option>-a
 
186
        <replaceable>ADDRESS</replaceable></option></term>
163
187
        <listitem>
164
188
          <xi:include href="mandos-options.xml" xpointer="address"/>
165
189
        </listitem>
166
190
      </varlistentry>
167
 
 
 
191
      
168
192
      <varlistentry>
169
 
        <term><literal>-p</literal>, <literal>--port <replaceable>
170
 
        PORT</replaceable></literal></term>
 
193
        <term><option>--port
 
194
        <replaceable>PORT</replaceable></option></term>
 
195
        <term><option>-p
 
196
        <replaceable>PORT</replaceable></option></term>
171
197
        <listitem>
172
198
          <xi:include href="mandos-options.xml" xpointer="port"/>
173
199
        </listitem>
174
200
      </varlistentry>
175
 
 
 
201
      
176
202
      <varlistentry>
177
 
        <term><literal>--check</literal></term>
 
203
        <term><option>--check</option></term>
178
204
        <listitem>
179
205
          <para>
180
206
            Run the server’s self-tests.  This includes any unit
182
208
          </para>
183
209
        </listitem>
184
210
      </varlistentry>
185
 
 
 
211
      
186
212
      <varlistentry>
187
 
        <term><literal>--debug</literal></term>
 
213
        <term><option>--debug</option></term>
188
214
        <listitem>
189
215
          <xi:include href="mandos-options.xml" xpointer="debug"/>
190
216
        </listitem>
191
217
      </varlistentry>
192
 
 
193
 
      <varlistentry>
194
 
        <term><literal>--priority <replaceable>
195
 
        PRIORITY</replaceable></literal></term>
 
218
      
 
219
      <varlistentry>
 
220
        <term><option>--debuglevel
 
221
        <replaceable>LEVEL</replaceable></option></term>
 
222
        <listitem>
 
223
          <para>
 
224
            Set the debugging log level.
 
225
            <replaceable>LEVEL</replaceable> is a string, one of
 
226
            <quote><literal>CRITICAL</literal></quote>,
 
227
            <quote><literal>ERROR</literal></quote>,
 
228
            <quote><literal>WARNING</literal></quote>,
 
229
            <quote><literal>INFO</literal></quote>, or
 
230
            <quote><literal>DEBUG</literal></quote>, in order of
 
231
            increasing verbosity.  The default level is
 
232
            <quote><literal>WARNING</literal></quote>.
 
233
          </para>
 
234
        </listitem>
 
235
      </varlistentry>
 
236
      
 
237
      <varlistentry>
 
238
        <term><option>--priority <replaceable>
 
239
        PRIORITY</replaceable></option></term>
196
240
        <listitem>
197
241
          <xi:include href="mandos-options.xml" xpointer="priority"/>
198
242
        </listitem>
199
243
      </varlistentry>
200
 
 
 
244
      
201
245
      <varlistentry>
202
 
        <term><literal>--servicename <replaceable>NAME</replaceable>
203
 
        </literal></term>
 
246
        <term><option>--servicename
 
247
        <replaceable>NAME</replaceable></option></term>
204
248
        <listitem>
205
249
          <xi:include href="mandos-options.xml"
206
250
                      xpointer="servicename"/>
207
251
        </listitem>
208
252
      </varlistentry>
209
 
 
 
253
      
210
254
      <varlistentry>
211
 
        <term><literal>--configdir <replaceable>DIR</replaceable>
212
 
        </literal></term>
 
255
        <term><option>--configdir
 
256
        <replaceable>DIRECTORY</replaceable></option></term>
213
257
        <listitem>
214
258
          <para>
215
259
            Directory to search for configuration files.  Default is
221
265
          </para>
222
266
        </listitem>
223
267
      </varlistentry>
224
 
 
 
268
      
225
269
      <varlistentry>
226
 
        <term><literal>--version</literal></term>
 
270
        <term><option>--version</option></term>
227
271
        <listitem>
228
272
          <para>
229
273
            Prints the program version and exit.
230
274
          </para>
231
275
        </listitem>
232
276
      </varlistentry>
 
277
      
 
278
      <varlistentry>
 
279
        <term><option>--no-dbus</option></term>
 
280
        <listitem>
 
281
          <xi:include href="mandos-options.xml" xpointer="dbus"/>
 
282
          <para>
 
283
            See also <xref linkend="dbus_interface"/>.
 
284
          </para>
 
285
        </listitem>
 
286
      </varlistentry>
 
287
      
 
288
      <varlistentry>
 
289
        <term><option>--no-ipv6</option></term>
 
290
        <listitem>
 
291
          <xi:include href="mandos-options.xml" xpointer="ipv6"/>
 
292
        </listitem>
 
293
      </varlistentry>
 
294
      
 
295
      <varlistentry>
 
296
        <term><option>--no-restore</option></term>
 
297
        <listitem>
 
298
          <xi:include href="mandos-options.xml" xpointer="restore"/>
 
299
          <para>
 
300
            See also <xref linkend="persistent_state"/>.
 
301
          </para>
 
302
        </listitem>
 
303
      </varlistentry>
 
304
      
 
305
      <varlistentry>
 
306
        <term><option>--statedir
 
307
        <replaceable>DIRECTORY</replaceable></option></term>
 
308
        <listitem>
 
309
          <xi:include href="mandos-options.xml" xpointer="statedir"/>
 
310
        </listitem>
 
311
      </varlistentry>
 
312
      
 
313
      <varlistentry>
 
314
        <term><option>--socket
 
315
        <replaceable>FD</replaceable></option></term>
 
316
        <listitem>
 
317
          <xi:include href="mandos-options.xml" xpointer="socket"/>
 
318
        </listitem>
 
319
      </varlistentry>
 
320
      
 
321
      <varlistentry>
 
322
        <term><option>--foreground</option></term>
 
323
        <listitem>
 
324
          <xi:include href="mandos-options.xml"
 
325
                      xpointer="foreground"/>
 
326
        </listitem>
 
327
      </varlistentry>
 
328
      
 
329
      <varlistentry>
 
330
        <term><option>--no-zeroconf</option></term>
 
331
        <listitem>
 
332
          <xi:include href="mandos-options.xml" xpointer="zeroconf"/>
 
333
        </listitem>
 
334
      </varlistentry>
 
335
      
233
336
    </variablelist>
234
337
  </refsect1>
235
 
 
 
338
  
236
339
  <refsect1 id="overview">
237
340
    <title>OVERVIEW</title>
238
341
    <xi:include href="overview.xml"/>
239
342
    <para>
240
343
      This program is the server part.  It is a normal server program
241
344
      and will run in a normal system environment, not in an initial
242
 
      RAM disk environment.
 
345
      <acronym>RAM</acronym> disk environment.
243
346
    </para>
244
347
  </refsect1>
245
 
 
 
348
  
246
349
  <refsect1 id="protocol">
247
350
    <title>NETWORK PROTOCOL</title>
248
351
    <para>
300
403
      </row>
301
404
    </tbody></tgroup></table>
302
405
  </refsect1>
303
 
 
 
406
  
304
407
  <refsect1 id="checking">
305
408
    <title>CHECKING</title>
306
409
    <para>
307
410
      The server will, by default, continually check that the clients
308
411
      are still up.  If a client has not been confirmed as being up
309
412
      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>
 
413
      longer eligible to receive the encrypted password.  (Manual
 
414
      intervention is required to re-enable a client.)  The timeout,
 
415
      extended timeout, checker program, and interval between checks
 
416
      can be configured both globally and per client; see
 
417
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
 
418
      <manvolnum>5</manvolnum></citerefentry>.
 
419
    </para>
 
420
  </refsect1>
 
421
  
 
422
  <refsect1 id="approval">
 
423
    <title>APPROVAL</title>
 
424
    <para>
 
425
      The server can be configured to require manual approval for a
 
426
      client before it is sent its secret.  The delay to wait for such
 
427
      approval and the default action (approve or deny) can be
 
428
      configured both globally and per client; see <citerefentry>
313
429
      <refentrytitle>mandos-clients.conf</refentrytitle>
314
 
      <manvolnum>5</manvolnum></citerefentry>.
315
 
    </para>
 
430
      <manvolnum>5</manvolnum></citerefentry>.  By default all clients
 
431
      will be approved immediately without delay.
 
432
    </para>
 
433
    <para>
 
434
      This can be used to deny a client its secret if not manually
 
435
      approved within a specified time.  It can also be used to make
 
436
      the server delay before giving a client its secret, allowing
 
437
      optional manual denying of this specific client.
 
438
    </para>
 
439
    
316
440
  </refsect1>
317
 
 
 
441
  
318
442
  <refsect1 id="logging">
319
443
    <title>LOGGING</title>
320
444
    <para>
321
445
      The server will send log message with various severity levels to
322
 
      <filename>/dev/log</filename>.  With the
 
446
      <filename class="devicefile">/dev/log</filename>.  With the
323
447
      <option>--debug</option> option, it will log even more messages,
324
448
      and also show them on the console.
325
449
    </para>
326
450
  </refsect1>
327
 
 
 
451
  
 
452
  <refsect1 id="persistent_state">
 
453
    <title>PERSISTENT STATE</title>
 
454
    <para>
 
455
      Client settings, initially read from
 
456
      <filename>clients.conf</filename>, are persistent across
 
457
      restarts, and run-time changes will override settings in
 
458
      <filename>clients.conf</filename>.  However, if a setting is
 
459
      <emphasis>changed</emphasis> (or a client added, or removed) in
 
460
      <filename>clients.conf</filename>, this will take precedence.
 
461
    </para>
 
462
  </refsect1>
 
463
  
 
464
  <refsect1 id="dbus_interface">
 
465
    <title>D-BUS INTERFACE</title>
 
466
    <para>
 
467
      The server will by default provide a D-Bus system bus interface.
 
468
      This interface will only be accessible by the root user or a
 
469
      Mandos-specific user, if such a user exists.  For documentation
 
470
      of the D-Bus API, see the file <filename>DBUS-API</filename>.
 
471
    </para>
 
472
  </refsect1>
 
473
  
328
474
  <refsect1 id="exit_status">
329
475
    <title>EXIT STATUS</title>
330
476
    <para>
332
478
      critical error is encountered.
333
479
    </para>
334
480
  </refsect1>
335
 
 
 
481
  
336
482
  <refsect1 id="environment">
337
483
    <title>ENVIRONMENT</title>
338
484
    <variablelist>
339
485
      <varlistentry>
340
 
        <term><varname>PATH</varname></term>
 
486
        <term><envar>PATH</envar></term>
341
487
        <listitem>
342
488
          <para>
343
489
            To start the configured checker (see <xref
352
498
      </varlistentry>
353
499
    </variablelist>
354
500
  </refsect1>
355
 
 
356
 
  <refsect1 id="file">
 
501
  
 
502
  <refsect1 id="files">
357
503
    <title>FILES</title>
358
504
    <para>
359
505
      Use the <option>--configdir</option> option to change where
382
528
        </listitem>
383
529
      </varlistentry>
384
530
      <varlistentry>
385
 
        <term><filename>/var/run/mandos/mandos.pid</filename></term>
386
 
        <listitem>
387
 
          <para>
388
 
            The file containing the process id of
389
 
            <command>&COMMANDNAME;</command>.
 
531
        <term><filename>/run/mandos.pid</filename></term>
 
532
        <listitem>
 
533
          <para>
 
534
            The file containing the process id of the
 
535
            <command>&COMMANDNAME;</command> process started last.
 
536
            <emphasis >Note:</emphasis> If the <filename
 
537
            class="directory">/run</filename> directory does not
 
538
            exist, <filename>/var/run/mandos.pid</filename> will be
 
539
            used instead.
 
540
          </para>
 
541
        </listitem>
 
542
      </varlistentry>
 
543
      <varlistentry>
 
544
        <term><filename class="devicefile">/dev/log</filename></term>
 
545
      </varlistentry>
 
546
      <varlistentry>
 
547
        <term><filename
 
548
        class="directory">/var/lib/mandos</filename></term>
 
549
        <listitem>
 
550
          <para>
 
551
            Directory where persistent state will be saved.  Change
 
552
            this with the <option>--statedir</option> option.  See
 
553
            also the <option>--no-restore</option> option.
390
554
          </para>
391
555
        </listitem>
392
556
      </varlistentry>
420
584
      backtrace.  This could be considered a feature.
421
585
    </para>
422
586
    <para>
423
 
      Currently, if a client is declared <quote>invalid</quote> due to
424
 
      having timed out, the server does not record this fact onto
425
 
      permanent storage.  This has some security implications, see
426
 
      <xref linkend="CLIENTS"/>.
427
 
    </para>
428
 
    <para>
429
 
      There is currently no way of querying the server of the current
430
 
      status of clients, other than analyzing its <systemitem
431
 
      class="service">syslog</systemitem> output.
432
 
    </para>
433
 
    <para>
434
587
      There is no fine-grained control over logging and debug output.
435
588
    </para>
436
589
    <para>
437
 
      Debug mode is conflated with running in the foreground.
438
 
    </para>
439
 
    <para>
440
 
      The console log messages does not show a timestamp.
 
590
      This server does not check the expire time of clients’ OpenPGP
 
591
      keys.
441
592
    </para>
442
593
  </refsect1>
443
594
  
448
599
        Normal invocation needs no options:
449
600
      </para>
450
601
      <para>
451
 
        <userinput>mandos</userinput>
 
602
        <userinput>&COMMANDNAME;</userinput>
452
603
      </para>
453
604
    </informalexample>
454
605
    <informalexample>
455
606
      <para>
456
607
        Run the server in debug mode, read configuration files from
457
 
        the <filename>~/mandos</filename> directory, and use the
458
 
        Zeroconf service name <quote>Test</quote> to not collide with
459
 
        any other official Mandos server on this host:
 
608
        the <filename class="directory">~/mandos</filename> directory,
 
609
        and use the Zeroconf service name <quote>Test</quote> to not
 
610
        collide with any other official Mandos server on this host:
460
611
      </para>
461
612
      <para>
462
613
 
463
614
<!-- do not wrap this line -->
464
 
<userinput>mandos --debug --configdir ~/mandos --servicename Test</userinput>
 
615
<userinput>&COMMANDNAME; --debug --configdir ~/mandos --servicename Test</userinput>
465
616
 
466
617
      </para>
467
618
    </informalexample>
473
624
      <para>
474
625
 
475
626
<!-- do not wrap this line -->
476
 
<userinput>mandos --interface eth7 --address fe80::aede:48ff:fe71:f6f2</userinput>
 
627
<userinput>&COMMANDNAME; --interface eth7 --address fe80::aede:48ff:fe71:f6f2</userinput>
477
628
 
478
629
      </para>
479
630
    </informalexample>
480
631
  </refsect1>
481
 
 
 
632
  
482
633
  <refsect1 id="security">
483
634
    <title>SECURITY</title>
484
 
    <refsect2 id="SERVER">
 
635
    <refsect2 id="server">
485
636
      <title>SERVER</title>
486
637
      <para>
487
638
        Running this <command>&COMMANDNAME;</command> server program
488
639
        should not in itself present any security risk to the host
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.
 
640
        computer running it.  The program switches to a non-root user
 
641
        soon after startup.
491
642
      </para>
492
643
    </refsect2>
493
 
    <refsect2 id="CLIENTS">
 
644
    <refsect2 id="clients">
494
645
      <title>CLIENTS</title>
495
646
      <para>
496
647
        The server only gives out its stored data to clients which
503
654
        <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
504
655
        <manvolnum>5</manvolnum></citerefentry>)
505
656
        <emphasis>must</emphasis> be made non-readable by anyone
506
 
        except the user running the server.
 
657
        except the user starting the server (usually root).
507
658
      </para>
508
659
      <para>
509
660
        As detailed in <xref linkend="checking"/>, the status of all
511
662
        compromised if they are gone for too long.
512
663
      </para>
513
664
      <para>
514
 
        If a client is compromised, its downtime should be duly noted
515
 
        by the server which would therefore declare the client
516
 
        invalid.  But if the server was ever restarted, it would
517
 
        re-read its client list from its configuration file and again
518
 
        regard all clients therein as valid, and hence eligible to
519
 
        receive their passwords.  Therefore, be careful when
520
 
        restarting servers if it is suspected that a client has, in
521
 
        fact, been compromised by parties who may now be running a
522
 
        fake Mandos client with the keys from the non-encrypted
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
526
 
        configuration file to omit any suspect clients, and restart
527
 
        the server program.
528
 
      </para>
529
 
      <para>
530
665
        For more details on client-side security, see
531
 
        <citerefentry><refentrytitle>password-request</refentrytitle>
 
666
        <citerefentry><refentrytitle>mandos-client</refentrytitle>
532
667
        <manvolnum>8mandos</manvolnum></citerefentry>.
533
668
      </para>
534
669
    </refsect2>
535
670
  </refsect1>
536
 
 
 
671
  
537
672
  <refsect1 id="see_also">
538
673
    <title>SEE ALSO</title>
539
674
    <para>
540
 
      <citerefentry>
541
 
        <refentrytitle>mandos.conf</refentrytitle>
542
 
        <manvolnum>5</manvolnum></citerefentry>, <citerefentry>
543
 
        <refentrytitle>mandos-clients.conf</refentrytitle>
544
 
        <manvolnum>5</manvolnum></citerefentry>, <citerefentry>
545
 
        <refentrytitle>password-request</refentrytitle>
546
 
        <manvolnum>8mandos</manvolnum></citerefentry>, <citerefentry>
547
 
        <refentrytitle>sh</refentrytitle><manvolnum>1</manvolnum>
548
 
      </citerefentry>
 
675
      <citerefentry><refentrytitle>intro</refentrytitle>
 
676
      <manvolnum>8mandos</manvolnum></citerefentry>,
 
677
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
 
678
      <manvolnum>5</manvolnum></citerefentry>,
 
679
      <citerefentry><refentrytitle>mandos.conf</refentrytitle>
 
680
      <manvolnum>5</manvolnum></citerefentry>,
 
681
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
 
682
      <manvolnum>8mandos</manvolnum></citerefentry>,
 
683
      <citerefentry><refentrytitle>sh</refentrytitle>
 
684
      <manvolnum>1</manvolnum></citerefentry>
549
685
    </para>
550
686
    <variablelist>
551
687
      <varlistentry>
572
708
      </varlistentry>
573
709
      <varlistentry>
574
710
        <term>
575
 
          <ulink
576
 
              url="http://www.gnu.org/software/gnutls/">GnuTLS</ulink>
 
711
          <ulink url="http://gnutls.org/">GnuTLS</ulink>
577
712
        </term>
578
713
      <listitem>
579
714
        <para>
585
720
      </varlistentry>
586
721
      <varlistentry>
587
722
        <term>
588
 
          <citation>RFC 4291: <citetitle>IP Version 6 Addressing
589
 
          Architecture</citetitle>, section 2.5.6, Link-Local IPv6
590
 
          Unicast Addresses</citation>
 
723
          RFC 4291: <citetitle>IP Version 6 Addressing
 
724
          Architecture</citetitle>
591
725
        </term>
592
726
        <listitem>
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>
 
727
          <variablelist>
 
728
            <varlistentry>
 
729
              <term>Section 2.2: <citetitle>Text Representation of
 
730
              Addresses</citetitle></term>
 
731
              <listitem><para/></listitem>
 
732
            </varlistentry>
 
733
            <varlistentry>
 
734
              <term>Section 2.5.5.2: <citetitle>IPv4-Mapped IPv6
 
735
              Address</citetitle></term>
 
736
              <listitem><para/></listitem>
 
737
            </varlistentry>
 
738
            <varlistentry>
 
739
            <term>Section 2.5.6, <citetitle>Link-Local IPv6 Unicast
 
740
            Addresses</citetitle></term>
 
741
            <listitem>
 
742
              <para>
 
743
                The clients use IPv6 link-local addresses, which are
 
744
                immediately usable since a link-local addresses is
 
745
                automatically assigned to a network interfaces when it
 
746
                is brought up.
 
747
              </para>
 
748
            </listitem>
 
749
            </varlistentry>
 
750
          </variablelist>
599
751
        </listitem>
600
752
      </varlistentry>
601
753
      <varlistentry>
602
754
        <term>
603
 
          <citation>RFC 4346: <citetitle>The Transport Layer Security
604
 
          (TLS) Protocol Version 1.1</citetitle></citation>
 
755
          RFC 5246: <citetitle>The Transport Layer Security (TLS)
 
756
          Protocol Version 1.2</citetitle>
605
757
        </term>
606
758
      <listitem>
607
759
        <para>
608
 
          TLS 1.1 is the protocol implemented by GnuTLS.
 
760
          TLS 1.2 is the protocol implemented by GnuTLS.
609
761
        </para>
610
762
      </listitem>
611
763
      </varlistentry>
612
764
      <varlistentry>
613
765
        <term>
614
 
          <citation>RFC 4880: <citetitle>OpenPGP Message
615
 
          Format</citetitle></citation>
 
766
          RFC 4880: <citetitle>OpenPGP Message Format</citetitle>
616
767
        </term>
617
768
      <listitem>
618
769
        <para>
622
773
      </varlistentry>
623
774
      <varlistentry>
624
775
        <term>
625
 
          <citation>RFC 5081: <citetitle>Using OpenPGP Keys for
626
 
          Transport Layer Security</citetitle></citation>
 
776
          RFC 6091: <citetitle>Using OpenPGP Keys for Transport Layer
 
777
          Security (TLS) Authentication</citetitle>
627
778
        </term>
628
779
      <listitem>
629
780
        <para>
635
786
    </variablelist>
636
787
  </refsect1>
637
788
</refentry>
 
789
<!-- Local Variables: -->
 
790
<!-- time-stamp-start: "<!ENTITY TIMESTAMP [\"']" -->
 
791
<!-- time-stamp-end: "[\"']>" -->
 
792
<!-- time-stamp-format: "%:y-%02m-%02d" -->
 
793
<!-- End: -->