/mandos/release

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/release

« back to all changes in this revision

Viewing changes to mandos.xml

* plugin-runner.c (main): Bug fix: Do setgid before setuid.

Show diffs side-by-side

added added

removed removed

Lines of Context:
mandos.xml
1
1
<?xml version="1.0" encoding="UTF-8"?>
2
2
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3
3
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4
 
<!ENTITY VERSION "1.0">
5
4
<!ENTITY COMMANDNAME "mandos">
 
5
<!ENTITY TIMESTAMP "2009-01-04">
 
6
<!ENTITY % common SYSTEM "common.ent">
 
7
%common;
6
8
]>
7
9
 
8
10
<refentry xmlns:xi="http://www.w3.org/2001/XInclude">
9
 
  <refentryinfo>
10
 
    <title>&COMMANDNAME;</title>
 
11
   <refentryinfo>
 
12
    <title>Mandos Manual</title>
11
13
    <!-- NWalsh’s docbook scripts use this to generate the footer: -->
12
 
    <productname>&COMMANDNAME;</productname>
13
 
    <productnumber>&VERSION;</productnumber>
 
14
    <productname>Mandos</productname>
 
15
    <productnumber>&version;</productnumber>
 
16
    <date>&TIMESTAMP;</date>
14
17
    <authorgroup>
15
18
      <author>
16
19
        <firstname>Björn</firstname>
29
32
    </authorgroup>
30
33
    <copyright>
31
34
      <year>2008</year>
 
35
      <year>2009</year>
32
36
      <holder>Teddy Hogeborn</holder>
33
37
      <holder>Björn Påhlsson</holder>
34
38
    </copyright>
35
 
    <legalnotice>
36
 
      <para>
37
 
        This manual page is free software: you can redistribute it
38
 
        and/or modify it under the terms of the GNU General Public
39
 
        License as published by the Free Software Foundation,
40
 
        either version 3 of the License, or (at your option) any
41
 
        later version.
42
 
      </para>
43
 
 
44
 
      <para>
45
 
        This manual page is distributed in the hope that it will
46
 
        be useful, but WITHOUT ANY WARRANTY; without even the
47
 
        implied warranty of MERCHANTABILITY or FITNESS FOR A
48
 
        PARTICULAR PURPOSE.  See the GNU General Public License
49
 
        for more details.
50
 
      </para>
51
 
 
52
 
      <para>
53
 
        You should have received a copy of the GNU General Public
54
 
        License along with this program; If not, see
55
 
        <ulink url="http://www.gnu.org/licenses/"/>.
56
 
      </para>
57
 
    </legalnotice>
 
39
    <xi:include href="legalnotice.xml"/>
58
40
  </refentryinfo>
59
 
 
 
41
  
60
42
  <refmeta>
61
43
    <refentrytitle>&COMMANDNAME;</refentrytitle>
62
44
    <manvolnum>8</manvolnum>
65
47
  <refnamediv>
66
48
    <refname><command>&COMMANDNAME;</command></refname>
67
49
    <refpurpose>
68
 
      Sends encrypted passwords to authenticated Mandos clients
 
50
      Gives encrypted passwords to authenticated Mandos clients
69
51
    </refpurpose>
70
52
  </refnamediv>
71
 
 
 
53
  
72
54
  <refsynopsisdiv>
73
55
    <cmdsynopsis>
74
56
      <command>&COMMANDNAME;</command>
75
 
      <arg>--interface<arg choice="plain">NAME</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">NAME</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-dbus</option></arg>
92
90
    </cmdsynopsis>
93
91
    <cmdsynopsis>
94
92
      <command>&COMMANDNAME;</command>
95
93
      <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>
98
96
      </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>
108
106
  </refsynopsisdiv>
109
 
 
 
107
  
110
108
  <refsect1 id="description">
111
109
    <title>DESCRIPTION</title>
112
110
    <para>
121
119
      Any authenticated client is then given the stored pre-encrypted
122
120
      password for that specific client.
123
121
    </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
128
      rebooting</emphasis> of client host computer with an
133
129
      <emphasis>encrypted root file system</emphasis>.  See <xref
134
130
      linkend="overview"/> for details.
135
131
    </para>
136
 
 
137
132
  </refsect1>
138
133
  
139
134
  <refsect1 id="options">
140
135
    <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>
145
140
        <listitem>
146
141
          <para>
147
142
            Show a help message and exit
148
143
          </para>
149
144
        </listitem>
150
145
      </varlistentry>
151
 
 
 
146
      
152
147
      <varlistentry>
153
 
        <term><literal>-i</literal>, <literal>--interface <replaceable
154
 
        >NAME</replaceable></literal></term>
 
148
        <term><option>--interface</option>
 
149
        <replaceable>NAME</replaceable></term>
 
150
        <term><option>-i</option>
 
151
        <replaceable>NAME</replaceable></term>
155
152
        <listitem>
156
153
          <xi:include href="mandos-options.xml" xpointer="interface"/>
157
154
        </listitem>
158
155
      </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
 
161
        <replaceable>ADDRESS</replaceable></option></term>
163
162
        <listitem>
164
163
          <xi:include href="mandos-options.xml" xpointer="address"/>
165
164
        </listitem>
166
165
      </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
173
          <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
183
          </para>
183
184
        </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-dbus</option></term>
 
237
        <listitem>
 
238
          <xi:include href="mandos-options.xml" xpointer="dbus"/>
 
239
          <para>
 
240
            See also <xref linkend="dbus_interface"/>.
 
241
          </para>
 
242
        </listitem>
 
243
      </varlistentry>
233
244
    </variablelist>
234
245
  </refsect1>
235
 
 
 
246
  
236
247
  <refsect1 id="overview">
237
248
    <title>OVERVIEW</title>
238
249
    <xi:include href="overview.xml"/>
239
250
    <para>
240
251
      This program is the server part.  It is a normal server program
241
252
      and will run in a normal system environment, not in an initial
242
 
      RAM disk environment.
 
253
      <acronym>RAM</acronym> disk environment.
243
254
    </para>
244
255
  </refsect1>
245
 
 
 
256
  
246
257
  <refsect1 id="protocol">
247
258
    <title>NETWORK PROTOCOL</title>
248
259
    <para>
300
311
      </row>
301
312
    </tbody></tgroup></table>
302
313
  </refsect1>
303
 
 
 
314
  
304
315
  <refsect1 id="checking">
305
316
    <title>CHECKING</title>
306
317
    <para>
314
325
      <manvolnum>5</manvolnum></citerefentry>.
315
326
    </para>
316
327
  </refsect1>
317
 
 
 
328
  
318
329
  <refsect1 id="logging">
319
330
    <title>LOGGING</title>
320
331
    <para>
324
335
      and also show them on the console.
325
336
    </para>
326
337
  </refsect1>
 
338
  
 
339
  <refsect1 id="dbus_interface">
 
340
    <title>D-BUS INTERFACE</title>
 
341
    <para>
 
342
      The server will by default provide a D-Bus system bus interface.
 
343
      This interface will only be accessible by the root user or a
 
344
      Mandos-specific user, if such a user exists.
 
345
      <!-- XXX -->
 
346
    </para>
 
347
  </refsect1>
327
348
 
328
349
  <refsect1 id="exit_status">
329
350
    <title>EXIT STATUS</title>
332
353
      critical error is encountered.
333
354
    </para>
334
355
  </refsect1>
335
 
 
 
356
  
336
357
  <refsect1 id="environment">
337
358
    <title>ENVIRONMENT</title>
338
359
    <variablelist>
339
360
      <varlistentry>
340
 
        <term><varname>PATH</varname></term>
 
361
        <term><envar>PATH</envar></term>
341
362
        <listitem>
342
363
          <para>
343
364
            To start the configured checker (see <xref
352
373
      </varlistentry>
353
374
    </variablelist>
354
375
  </refsect1>
355
 
 
356
 
  <refsect1 id="file">
 
376
  
 
377
  <refsect1 id="files">
357
378
    <title>FILES</title>
358
379
    <para>
359
380
      Use the <option>--configdir</option> option to change where
382
403
        </listitem>
383
404
      </varlistentry>
384
405
      <varlistentry>
385
 
        <term><filename>/var/run/mandos/mandos.pid</filename></term>
 
406
        <term><filename>/var/run/mandos.pid</filename></term>
386
407
        <listitem>
387
408
          <para>
388
409
            The file containing the process id of
423
444
      Currently, if a client is declared <quote>invalid</quote> due to
424
445
      having timed out, the server does not record this fact onto
425
446
      permanent storage.  This has some security implications, see
426
 
      <xref linkend="CLIENTS"/>.
 
447
      <xref linkend="clients"/>.
427
448
    </para>
428
449
    <para>
429
450
      There is currently no way of querying the server of the current
437
458
      Debug mode is conflated with running in the foreground.
438
459
    </para>
439
460
    <para>
440
 
      The console log messages does not show a timestamp.
 
461
      The console log messages does not show a time stamp.
 
462
    </para>
 
463
    <para>
 
464
      This server does not check the expire time of clients’ OpenPGP
 
465
      keys.
441
466
    </para>
442
467
  </refsect1>
443
468
  
448
473
        Normal invocation needs no options:
449
474
      </para>
450
475
      <para>
451
 
        <userinput>mandos</userinput>
 
476
        <userinput>&COMMANDNAME;</userinput>
452
477
      </para>
453
478
    </informalexample>
454
479
    <informalexample>
461
486
      <para>
462
487
 
463
488
<!-- do not wrap this line -->
464
 
<userinput>mandos --debug --configdir ~/mandos --servicename Test</userinput>
 
489
<userinput>&COMMANDNAME; --debug --configdir ~/mandos --servicename Test</userinput>
465
490
 
466
491
      </para>
467
492
    </informalexample>
473
498
      <para>
474
499
 
475
500
<!-- do not wrap this line -->
476
 
<userinput>mandos --interface eth7 --address fe80::aede:48ff:fe71:f6f2</userinput>
 
501
<userinput>&COMMANDNAME; --interface eth7 --address fe80::aede:48ff:fe71:f6f2</userinput>
477
502
 
478
503
      </para>
479
504
    </informalexample>
480
505
  </refsect1>
481
 
 
 
506
  
482
507
  <refsect1 id="security">
483
508
    <title>SECURITY</title>
484
 
    <refsect2 id="SERVER">
 
509
    <refsect2 id="server">
485
510
      <title>SERVER</title>
486
511
      <para>
487
512
        Running this <command>&COMMANDNAME;</command> server program
488
513
        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.
 
514
        computer running it.  The program switches to a non-root user
 
515
        soon after startup.
491
516
      </para>
492
517
    </refsect2>
493
 
    <refsect2 id="CLIENTS">
 
518
    <refsect2 id="clients">
494
519
      <title>CLIENTS</title>
495
520
      <para>
496
521
        The server only gives out its stored data to clients which
503
528
        <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
504
529
        <manvolnum>5</manvolnum></citerefentry>)
505
530
        <emphasis>must</emphasis> be made non-readable by anyone
506
 
        except the user running the server.
 
531
        except the user starting the server (usually root).
507
532
      </para>
508
533
      <para>
509
534
        As detailed in <xref linkend="checking"/>, the status of all
520
545
        restarting servers if it is suspected that a client has, in
521
546
        fact, been compromised by parties who may now be running a
522
547
        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
 
548
        initial <acronym>RAM</acronym> image of the client host.  What
 
549
        should be done in that case (if restarting the server program
 
550
        really is necessary) is to stop the server program, edit the
526
551
        configuration file to omit any suspect clients, and restart
527
552
        the server program.
528
553
      </para>
529
554
      <para>
530
555
        For more details on client-side security, see
531
 
        <citerefentry><refentrytitle>password-request</refentrytitle>
 
556
        <citerefentry><refentrytitle>mandos-client</refentrytitle>
532
557
        <manvolnum>8mandos</manvolnum></citerefentry>.
533
558
      </para>
534
559
    </refsect2>
535
560
  </refsect1>
536
 
 
 
561
  
537
562
  <refsect1 id="see_also">
538
563
    <title>SEE ALSO</title>
539
564
    <para>
540
565
      <citerefentry>
 
566
        <refentrytitle>mandos-clients.conf</refentrytitle>
 
567
        <manvolnum>5</manvolnum></citerefentry>, <citerefentry>
541
568
        <refentrytitle>mandos.conf</refentrytitle>
542
569
        <manvolnum>5</manvolnum></citerefentry>, <citerefentry>
543
 
        <refentrytitle>mandos-clients.conf</refentrytitle>
544
 
        <manvolnum>5</manvolnum></citerefentry>, <citerefentry>
545
 
        <refentrytitle>password-request</refentrytitle>
 
570
        <refentrytitle>mandos-client</refentrytitle>
546
571
        <manvolnum>8mandos</manvolnum></citerefentry>, <citerefentry>
547
572
        <refentrytitle>sh</refentrytitle><manvolnum>1</manvolnum>
548
573
      </citerefentry>
572
597
      </varlistentry>
573
598
      <varlistentry>
574
599
        <term>
575
 
          <ulink
576
 
              url="http://www.gnu.org/software/gnutls/">GnuTLS</ulink>
 
600
          <ulink url="http://www.gnu.org/software/gnutls/"
 
601
          >GnuTLS</ulink>
577
602
        </term>
578
603
      <listitem>
579
604
        <para>
585
610
      </varlistentry>
586
611
      <varlistentry>
587
612
        <term>
588
 
          <citation>RFC 4291: <citetitle>IP Version 6 Addressing
589
 
          Architecture</citetitle>, section 2.5.6, Link-Local IPv6
590
 
          Unicast Addresses</citation>
 
613
          RFC 4291: <citetitle>IP Version 6 Addressing
 
614
          Architecture</citetitle>
591
615
        </term>
592
616
        <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>
 
617
          <variablelist>
 
618
            <varlistentry>
 
619
              <term>Section 2.2: <citetitle>Text Representation of
 
620
              Addresses</citetitle></term>
 
621
              <listitem><para/></listitem>
 
622
            </varlistentry>
 
623
            <varlistentry>
 
624
              <term>Section 2.5.5.2: <citetitle>IPv4-Mapped IPv6
 
625
              Address</citetitle></term>
 
626
              <listitem><para/></listitem>
 
627
            </varlistentry>
 
628
            <varlistentry>
 
629
            <term>Section 2.5.6, <citetitle>Link-Local IPv6 Unicast
 
630
            Addresses</citetitle></term>
 
631
            <listitem>
 
632
              <para>
 
633
                The clients use IPv6 link-local addresses, which are
 
634
                immediately usable since a link-local addresses is
 
635
                automatically assigned to a network interfaces when it
 
636
                is brought up.
 
637
              </para>
 
638
            </listitem>
 
639
            </varlistentry>
 
640
          </variablelist>
599
641
        </listitem>
600
642
      </varlistentry>
601
643
      <varlistentry>
602
644
        <term>
603
 
          <citation>RFC 4346: <citetitle>The Transport Layer Security
604
 
          (TLS) Protocol Version 1.1</citetitle></citation>
 
645
          RFC 4346: <citetitle>The Transport Layer Security (TLS)
 
646
          Protocol Version 1.1</citetitle>
605
647
        </term>
606
648
      <listitem>
607
649
        <para>
611
653
      </varlistentry>
612
654
      <varlistentry>
613
655
        <term>
614
 
          <citation>RFC 4880: <citetitle>OpenPGP Message
615
 
          Format</citetitle></citation>
 
656
          RFC 4880: <citetitle>OpenPGP Message Format</citetitle>
616
657
        </term>
617
658
      <listitem>
618
659
        <para>
622
663
      </varlistentry>
623
664
      <varlistentry>
624
665
        <term>
625
 
          <citation>RFC 5081: <citetitle>Using OpenPGP Keys for
626
 
          Transport Layer Security</citetitle></citation>
 
666
          RFC 5081: <citetitle>Using OpenPGP Keys for Transport Layer
 
667
          Security</citetitle>
627
668
        </term>
628
669
      <listitem>
629
670
        <para>
635
676
    </variablelist>
636
677
  </refsect1>
637
678
</refentry>
 
679
<!-- Local Variables: -->
 
680
<!-- time-stamp-start: "<!ENTITY TIMESTAMP [\"']" -->
 
681
<!-- time-stamp-end: "[\"']>" -->
 
682
<!-- time-stamp-format: "%:y-%02m-%02d" -->
 
683
<!-- End: -->