/mandos/trunk

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

« back to all changes in this revision

Viewing changes to mandos.xml

  • Committer: teddy at bsnet
  • Date: 2010-09-27 16:27:13 UTC
  • Revision ID: teddy@fukt.bsnet.se-20100927162713-jucnyd63612ximvw
* mandos-monitor: Change key for removing a client from "r" to "R".

Show diffs side-by-side

added added

removed removed

Lines of Context:
mandos.xml
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
4
<!ENTITY COMMANDNAME "mandos">
5
 
<!ENTITY TIMESTAMP "2012-06-17">
 
5
<!ENTITY TIMESTAMP "2010-09-26">
6
6
<!ENTITY % common SYSTEM "common.ent">
7
7
%common;
8
8
]>
19
19
        <firstname>Björn</firstname>
20
20
        <surname>Påhlsson</surname>
21
21
        <address>
22
 
          <email>belorn@recompile.se</email>
 
22
          <email>belorn@fukt.bsnet.se</email>
23
23
        </address>
24
24
      </author>
25
25
      <author>
26
26
        <firstname>Teddy</firstname>
27
27
        <surname>Hogeborn</surname>
28
28
        <address>
29
 
          <email>teddy@recompile.se</email>
 
29
          <email>teddy@fukt.bsnet.se</email>
30
30
        </address>
31
31
      </author>
32
32
    </authorgroup>
34
34
      <year>2008</year>
35
35
      <year>2009</year>
36
36
      <year>2010</year>
37
 
      <year>2011</year>
38
 
      <year>2012</year>
39
37
      <holder>Teddy Hogeborn</holder>
40
38
      <holder>Björn Påhlsson</holder>
41
39
    </copyright>
89
87
      <sbr/>
90
88
      <arg><option>--debug</option></arg>
91
89
      <sbr/>
92
 
      <arg><option>--debuglevel
93
 
      <replaceable>LEVEL</replaceable></option></arg>
94
 
      <sbr/>
95
90
      <arg><option>--no-dbus</option></arg>
96
91
      <sbr/>
97
92
      <arg><option>--no-ipv6</option></arg>
98
 
      <sbr/>
99
 
      <arg><option>--no-restore</option></arg>
100
 
      <sbr/>
101
 
      <arg><option>--statedir
102
 
      <replaceable>DIRECTORY</replaceable></option></arg>
103
 
      <sbr/>
104
 
      <arg><option>--socket
105
 
      <replaceable>FD</replaceable></option></arg>
106
 
      <sbr/>
107
 
      <arg><option>--foreground</option></arg>
108
93
    </cmdsynopsis>
109
94
    <cmdsynopsis>
110
95
      <command>&COMMANDNAME;</command>
128
113
    <para>
129
114
      <command>&COMMANDNAME;</command> is a server daemon which
130
115
      handles incoming request for passwords for a pre-defined list of
131
 
      client host computers. For an introduction, see
132
 
      <citerefentry><refentrytitle>intro</refentrytitle>
133
 
      <manvolnum>8mandos</manvolnum></citerefentry>. The Mandos server
134
 
      uses Zeroconf to announce itself on the local network, and uses
135
 
      TLS to communicate securely with and to authenticate the
136
 
      clients.  The Mandos server uses IPv6 to allow Mandos clients to
137
 
      use IPv6 link-local addresses, since the clients will probably
138
 
      not have any other addresses configured (see <xref
139
 
      linkend="overview"/>).  Any authenticated client is then given
140
 
      the stored pre-encrypted password for that specific client.
 
116
      client host computers.  The Mandos server uses Zeroconf to
 
117
      announce itself on the local network, and uses TLS to
 
118
      communicate securely with and to authenticate the clients.  The
 
119
      Mandos server uses IPv6 to allow Mandos clients to use IPv6
 
120
      link-local addresses, since the clients will probably not have
 
121
      any other addresses configured (see <xref linkend="overview"/>).
 
122
      Any authenticated client is then given the stored pre-encrypted
 
123
      password for that specific client.
141
124
    </para>
142
125
  </refsect1>
143
126
  
212
195
      </varlistentry>
213
196
      
214
197
      <varlistentry>
215
 
        <term><option>--debuglevel
216
 
        <replaceable>LEVEL</replaceable></option></term>
217
 
        <listitem>
218
 
          <para>
219
 
            Set the debugging log level.
220
 
            <replaceable>LEVEL</replaceable> is a string, one of
221
 
            <quote><literal>CRITICAL</literal></quote>,
222
 
            <quote><literal>ERROR</literal></quote>,
223
 
            <quote><literal>WARNING</literal></quote>,
224
 
            <quote><literal>INFO</literal></quote>, or
225
 
            <quote><literal>DEBUG</literal></quote>, in order of
226
 
            increasing verbosity.  The default level is
227
 
            <quote><literal>WARNING</literal></quote>.
228
 
          </para>
229
 
        </listitem>
230
 
      </varlistentry>
231
 
      
232
 
      <varlistentry>
233
198
        <term><option>--priority <replaceable>
234
199
        PRIORITY</replaceable></option></term>
235
200
        <listitem>
286
251
          <xi:include href="mandos-options.xml" xpointer="ipv6"/>
287
252
        </listitem>
288
253
      </varlistentry>
289
 
      
290
 
      <varlistentry>
291
 
        <term><option>--no-restore</option></term>
292
 
        <listitem>
293
 
          <xi:include href="mandos-options.xml" xpointer="restore"/>
294
 
          <para>
295
 
            See also <xref linkend="persistent_state"/>.
296
 
          </para>
297
 
        </listitem>
298
 
      </varlistentry>
299
 
      
300
 
      <varlistentry>
301
 
        <term><option>--statedir
302
 
        <replaceable>DIRECTORY</replaceable></option></term>
303
 
        <listitem>
304
 
          <xi:include href="mandos-options.xml" xpointer="statedir"/>
305
 
        </listitem>
306
 
      </varlistentry>
307
 
      
308
 
      <varlistentry>
309
 
        <term><option>--socket
310
 
        <replaceable>FD</replaceable></option></term>
311
 
        <listitem>
312
 
          <xi:include href="mandos-options.xml" xpointer="socket"/>
313
 
        </listitem>
314
 
      </varlistentry>
315
 
      
316
 
      <varlistentry>
317
 
        <term><option>--foreground</option></term>
318
 
        <listitem>
319
 
          <xi:include href="mandos-options.xml"
320
 
                      xpointer="foreground"/>
321
 
        </listitem>
322
 
      </varlistentry>
323
 
      
324
254
    </variablelist>
325
255
  </refsect1>
326
256
  
400
330
      for some time, the client is assumed to be compromised and is no
401
331
      longer eligible to receive the encrypted password.  (Manual
402
332
      intervention is required to re-enable a client.)  The timeout,
403
 
      extended timeout, checker program, and interval between checks
404
 
      can be configured both globally and per client; see
405
 
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
406
 
      <manvolnum>5</manvolnum></citerefentry>.
 
333
      checker program, and interval between checks can be configured
 
334
      both globally and per client; see <citerefentry>
 
335
      <refentrytitle>mandos-clients.conf</refentrytitle>
 
336
      <manvolnum>5</manvolnum></citerefentry>.  A client successfully
 
337
      receiving its password will also be treated as a successful
 
338
      checker run.
407
339
    </para>
408
340
  </refsect1>
409
341
  
431
363
    <title>LOGGING</title>
432
364
    <para>
433
365
      The server will send log message with various severity levels to
434
 
      <filename class="devicefile">/dev/log</filename>.  With the
 
366
      <filename>/dev/log</filename>.  With the
435
367
      <option>--debug</option> option, it will log even more messages,
436
368
      and also show them on the console.
437
369
    </para>
438
370
  </refsect1>
439
371
  
440
 
  <refsect1 id="persistent_state">
441
 
    <title>PERSISTENT STATE</title>
442
 
    <para>
443
 
      Client settings, initially read from
444
 
      <filename>clients.conf</filename>, are persistent across
445
 
      restarts, and run-time changes will override settings in
446
 
      <filename>clients.conf</filename>.  However, if a setting is
447
 
      <emphasis>changed</emphasis> (or a client added, or removed) in
448
 
      <filename>clients.conf</filename>, this will take precedence.
449
 
    </para>
450
 
  </refsect1>
451
 
  
452
372
  <refsect1 id="dbus_interface">
453
373
    <title>D-BUS INTERFACE</title>
454
374
    <para>
525
445
        </listitem>
526
446
      </varlistentry>
527
447
      <varlistentry>
528
 
        <term><filename class="devicefile">/dev/log</filename></term>
529
 
      </varlistentry>
530
 
      <varlistentry>
531
 
        <term><filename
532
 
        class="directory">/var/lib/mandos</filename></term>
533
 
        <listitem>
534
 
          <para>
535
 
            Directory where persistent state will be saved.  Change
536
 
            this with the <option>--statedir</option> option.  See
537
 
            also the <option>--no-restore</option> option.
538
 
          </para>
539
 
        </listitem>
540
 
      </varlistentry>
541
 
      <varlistentry>
542
448
        <term><filename>/dev/log</filename></term>
543
449
        <listitem>
544
450
          <para>
568
474
      backtrace.  This could be considered a feature.
569
475
    </para>
570
476
    <para>
 
477
      Currently, if a client is disabled due to having timed out, the
 
478
      server does not record this fact onto permanent storage.  This
 
479
      has some security implications, see <xref linkend="clients"/>.
 
480
    </para>
 
481
    <para>
571
482
      There is no fine-grained control over logging and debug output.
572
483
    </para>
573
484
    <para>
 
485
      Debug mode is conflated with running in the foreground.
 
486
    </para>
 
487
    <para>
 
488
      The console log messages do not show a time stamp.
 
489
    </para>
 
490
    <para>
574
491
      This server does not check the expire time of clients’ OpenPGP
575
492
      keys.
576
493
    </para>
589
506
    <informalexample>
590
507
      <para>
591
508
        Run the server in debug mode, read configuration files from
592
 
        the <filename class="directory">~/mandos</filename> directory,
593
 
        and use the Zeroconf service name <quote>Test</quote> to not
594
 
        collide with any other official Mandos server on this host:
 
509
        the <filename>~/mandos</filename> directory, and use the
 
510
        Zeroconf service name <quote>Test</quote> to not collide with
 
511
        any other official Mandos server on this host:
595
512
      </para>
596
513
      <para>
597
514
 
646
563
        compromised if they are gone for too long.
647
564
      </para>
648
565
      <para>
 
566
        If a client is compromised, its downtime should be duly noted
 
567
        by the server which would therefore disable the client.  But
 
568
        if the server was ever restarted, it would re-read its client
 
569
        list from its configuration file and again regard all clients
 
570
        therein as enabled, and hence eligible to receive their
 
571
        passwords.  Therefore, be careful when restarting servers if
 
572
        it is suspected that a client has, in fact, been compromised
 
573
        by parties who may now be running a fake Mandos client with
 
574
        the keys from the non-encrypted initial <acronym>RAM</acronym>
 
575
        image of the client host.  What should be done in that case
 
576
        (if restarting the server program really is necessary) is to
 
577
        stop the server program, edit the configuration file to omit
 
578
        any suspect clients, and restart the server program.
 
579
      </para>
 
580
      <para>
649
581
        For more details on client-side security, see
650
582
        <citerefentry><refentrytitle>mandos-client</refentrytitle>
651
583
        <manvolnum>8mandos</manvolnum></citerefentry>.
656
588
  <refsect1 id="see_also">
657
589
    <title>SEE ALSO</title>
658
590
    <para>
659
 
      <citerefentry><refentrytitle>intro</refentrytitle>
660
 
      <manvolnum>8mandos</manvolnum></citerefentry>,
661
 
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
662
 
      <manvolnum>5</manvolnum></citerefentry>,
663
 
      <citerefentry><refentrytitle>mandos.conf</refentrytitle>
664
 
      <manvolnum>5</manvolnum></citerefentry>,
665
 
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
666
 
      <manvolnum>8mandos</manvolnum></citerefentry>,
667
 
      <citerefentry><refentrytitle>sh</refentrytitle>
668
 
      <manvolnum>1</manvolnum></citerefentry>
 
591
      <citerefentry>
 
592
        <refentrytitle>mandos-clients.conf</refentrytitle>
 
593
        <manvolnum>5</manvolnum></citerefentry>, <citerefentry>
 
594
        <refentrytitle>mandos.conf</refentrytitle>
 
595
        <manvolnum>5</manvolnum></citerefentry>, <citerefentry>
 
596
        <refentrytitle>mandos-client</refentrytitle>
 
597
        <manvolnum>8mandos</manvolnum></citerefentry>, <citerefentry>
 
598
        <refentrytitle>sh</refentrytitle><manvolnum>1</manvolnum>
 
599
      </citerefentry>
669
600
    </para>
670
601
    <variablelist>
671
602
      <varlistentry>