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
- browse files at revision 931
- compare with another revision
- download diff
- download tarball
- view history from revision 931
- Committer: Teddy Hogeborn
- Date: 2018-02-10 21:07:42 UTC
- mfrom: (237.4.94 release)
- Revision ID: teddy@recompile.se-20180210210742-v7hu1g3x5jpix3zx
Merge from release branch
- files added:
- DBUS-API
- debian/source
- debian/upstream
- network-hooks.d
- plugin-helpers
- files modified:
- .bzrignore
added
removed
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 "2009-01-04">
5
<!ENTITY TIMESTAMP "2018-02-08">
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@fukt.bsnet.se</email>
22
<email>belorn@recompile.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@fukt.bsnet.se</email>
29
<email>teddy@recompile.se</email>
30
30
</address>
31
31
</author>
32
32
</authorgroup>
33
33
<copyright>
34
34
<year>2008</year>
35
35
<year>2009</year>
36
<year>2010</year>
37
<year>2011</year>
38
<year>2012</year>
39
<year>2013</year>
40
<year>2014</year>
41
<year>2015</year>
42
<year>2016</year>
43
<year>2017</year>
44
<year>2018</year>
36
45
<holder>Teddy Hogeborn</holder>
37
46
<holder>Björn Påhlsson</holder>
38
47
</copyright>
86
95
<sbr/>
87
96
<arg><option>--debug</option></arg>
88
97
<sbr/>
98
<arg><option>--debuglevel
99
<replaceable>LEVEL</replaceable></option></arg>
100
<sbr/>
89
101
<arg><option>--no-dbus</option></arg>
102
<sbr/>
103
<arg><option>--no-ipv6</option></arg>
104
<sbr/>
105
<arg><option>--no-restore</option></arg>
106
<sbr/>
107
<arg><option>--statedir
108
<replaceable>DIRECTORY</replaceable></option></arg>
109
<sbr/>
110
<arg><option>--socket
111
<replaceable>FD</replaceable></option></arg>
112
<sbr/>
113
<arg><option>--foreground</option></arg>
114
<sbr/>
115
<arg><option>--no-zeroconf</option></arg>
90
116
</cmdsynopsis>
91
117
<cmdsynopsis>
92
118
<command>&COMMANDNAME;</command>
110
136
<para>
111
137
<command>&COMMANDNAME;</command> is a server daemon which
112
138
handles incoming request for passwords for a pre-defined list of
113
client host computers. The Mandos server uses Zeroconf to
114
announce itself on the local network, and uses TLS to
115
communicate securely with and to authenticate the clients. The
116
Mandos server uses IPv6 to allow Mandos clients to use IPv6
117
link-local addresses, since the clients will probably not have
118
any other addresses configured (see <xref linkend="overview"/>).
119
Any authenticated client is then given the stored pre-encrypted
120
password for that specific client.
139
client host computers. For an introduction, see
140
<citerefentry><refentrytitle>intro</refentrytitle>
141
<manvolnum>8mandos</manvolnum></citerefentry>. The Mandos server
142
uses Zeroconf to announce itself on the local network, and uses
143
TLS to communicate securely with and to authenticate the
144
clients. The Mandos server uses IPv6 to allow Mandos clients to
145
use IPv6 link-local addresses, since the clients will probably
146
not have any other addresses configured (see <xref
147
linkend="overview"/>). Any authenticated client is then given
148
the stored pre-encrypted password for that specific client.
121
149
</para>
122
150
</refsect1>
123
151
192
220
</varlistentry>
193
221
194
222
<varlistentry>
223
<term><option>--debuglevel
224
<replaceable>LEVEL</replaceable></option></term>
225
<listitem>
226
<para>
227
Set the debugging log level.
228
<replaceable>LEVEL</replaceable> is a string, one of
229
<quote><literal>CRITICAL</literal></quote>,
230
<quote><literal>ERROR</literal></quote>,
231
<quote><literal>WARNING</literal></quote>,
232
<quote><literal>INFO</literal></quote>, or
233
<quote><literal>DEBUG</literal></quote>, in order of
234
increasing verbosity. The default level is
235
<quote><literal>WARNING</literal></quote>.
236
</para>
237
</listitem>
238
</varlistentry>
239
240
<varlistentry>
195
241
<term><option>--priority <replaceable>
196
242
PRIORITY</replaceable></option></term>
197
243
<listitem>
241
287
</para>
242
288
</listitem>
243
289
</varlistentry>
290
291
<varlistentry>
292
<term><option>--no-ipv6</option></term>
293
<listitem>
294
<xi:include href="mandos-options.xml" xpointer="ipv6"/>
295
</listitem>
296
</varlistentry>
297
298
<varlistentry>
299
<term><option>--no-restore</option></term>
300
<listitem>
301
<xi:include href="mandos-options.xml" xpointer="restore"/>
302
<para>
303
See also <xref linkend="persistent_state"/>.
304
</para>
305
</listitem>
306
</varlistentry>
307
308
<varlistentry>
309
<term><option>--statedir
310
<replaceable>DIRECTORY</replaceable></option></term>
311
<listitem>
312
<xi:include href="mandos-options.xml" xpointer="statedir"/>
313
</listitem>
314
</varlistentry>
315
316
<varlistentry>
317
<term><option>--socket
318
<replaceable>FD</replaceable></option></term>
319
<listitem>
320
<xi:include href="mandos-options.xml" xpointer="socket"/>
321
</listitem>
322
</varlistentry>
323
324
<varlistentry>
325
<term><option>--foreground</option></term>
326
<listitem>
327
<xi:include href="mandos-options.xml"
328
xpointer="foreground"/>
329
</listitem>
330
</varlistentry>
331
332
<varlistentry>
333
<term><option>--no-zeroconf</option></term>
334
<listitem>
335
<xi:include href="mandos-options.xml" xpointer="zeroconf"/>
336
</listitem>
337
</varlistentry>
338
244
339
</variablelist>
245
340
</refsect1>
246
341
318
413
The server will, by default, continually check that the clients
319
414
are still up. If a client has not been confirmed as being up
320
415
for some time, the client is assumed to be compromised and is no
321
longer eligible to receive the encrypted password. The timeout,
322
checker program, and interval between checks can be configured
323
both globally and per client; see <citerefentry>
416
longer eligible to receive the encrypted password. (Manual
417
intervention is required to re-enable a client.) The timeout,
418
extended timeout, checker program, and interval between checks
419
can be configured both globally and per client; see
420
<citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
421
<manvolnum>5</manvolnum></citerefentry>.
422
</para>
423
</refsect1>
424
425
<refsect1 id="approval">
426
<title>APPROVAL</title>
427
<para>
428
The server can be configured to require manual approval for a
429
client before it is sent its secret. The delay to wait for such
430
approval and the default action (approve or deny) can be
431
configured both globally and per client; see <citerefentry>
324
432
<refentrytitle>mandos-clients.conf</refentrytitle>
325
<manvolnum>5</manvolnum></citerefentry>.
326
</para>
433
<manvolnum>5</manvolnum></citerefentry>. By default all clients
434
will be approved immediately without delay.
435
</para>
436
<para>
437
This can be used to deny a client its secret if not manually
438
approved within a specified time. It can also be used to make
439
the server delay before giving a client its secret, allowing
440
optional manual denying of this specific client.
441
</para>
442
327
443
</refsect1>
328
444
329
445
<refsect1 id="logging">
330
446
<title>LOGGING</title>
331
447
<para>
332
448
The server will send log message with various severity levels to
333
<filename>/dev/log</filename>. With the
449
<filename class="devicefile">/dev/log</filename>. With the
334
450
<option>--debug</option> option, it will log even more messages,
335
451
and also show them on the console.
336
452
</para>
337
453
</refsect1>
338
454
455
<refsect1 id="persistent_state">
456
<title>PERSISTENT STATE</title>
457
<para>
458
Client settings, initially read from
459
<filename>clients.conf</filename>, are persistent across
460
restarts, and run-time changes will override settings in
461
<filename>clients.conf</filename>. However, if a setting is
462
<emphasis>changed</emphasis> (or a client added, or removed) in
463
<filename>clients.conf</filename>, this will take precedence.
464
</para>
465
</refsect1>
466
339
467
<refsect1 id="dbus_interface">
340
468
<title>D-BUS INTERFACE</title>
341
469
<para>
342
470
The server will by default provide a D-Bus system bus interface.
343
471
This interface will only be accessible by the root user or a
344
Mandos-specific user, if such a user exists.
345
<!-- XXX -->
472
Mandos-specific user, if such a user exists. For documentation
473
of the D-Bus API, see the file <filename>DBUS-API</filename>.
346
474
</para>
347
475
</refsect1>
348
476
349
477
<refsect1 id="exit_status">
350
478
<title>EXIT STATUS</title>
351
479
<para>
403
531
</listitem>
404
532
</varlistentry>
405
533
<varlistentry>
406
<term><filename>/var/run/mandos.pid</filename></term>
407
<listitem>
408
<para>
409
The file containing the process id of
410
<command>&COMMANDNAME;</command>.
411
</para>
412
</listitem>
413
</varlistentry>
414
<varlistentry>
415
<term><filename>/dev/log</filename></term>
534
<term><filename>/run/mandos.pid</filename></term>
535
<listitem>
536
<para>
537
The file containing the process id of the
538
<command>&COMMANDNAME;</command> process started last.
539
<emphasis >Note:</emphasis> If the <filename
540
class="directory">/run</filename> directory does not
541
exist, <filename>/var/run/mandos.pid</filename> will be
542
used instead.
543
</para>
544
</listitem>
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.
554
</para>
555
</listitem>
556
</varlistentry>
557
<varlistentry>
558
<term><filename class="devicefile">/dev/log</filename></term>
416
559
<listitem>
417
560
<para>
418
561
The Unix domain socket to where local syslog messages are
441
584
backtrace. This could be considered a feature.
442
585
</para>
443
586
<para>
444
Currently, if a client is declared <quote>invalid</quote> due to
445
having timed out, the server does not record this fact onto
446
permanent storage. This has some security implications, see
447
<xref linkend="clients"/>.
448
</para>
449
<para>
450
There is currently no way of querying the server of the current
451
status of clients, other than analyzing its <systemitem
452
class="service">syslog</systemitem> output.
453
</para>
454
<para>
455
587
There is no fine-grained control over logging and debug output.
456
588
</para>
457
589
<para>
458
Debug mode is conflated with running in the foreground.
459
</para>
460
<para>
461
The console log messages does not show a time stamp.
462
</para>
463
<para>
464
590
This server does not check the expire time of clients’ OpenPGP
465
591
keys.
466
592
</para>
593
<xi:include href="bugs.xml"/>
467
594
</refsect1>
468
595
469
596
<refsect1 id="example">
479
606
<informalexample>
480
607
<para>
481
608
Run the server in debug mode, read configuration files from
482
the <filename>~/mandos</filename> directory, and use the
483
Zeroconf service name <quote>Test</quote> to not collide with
484
any other official Mandos server on this host:
609
the <filename class="directory">~/mandos</filename> directory,
610
and use the Zeroconf service name <quote>Test</quote> to not
611
collide with any other official Mandos server on this host:
485
612
</para>
486
613
<para>
487
614
536
663
compromised if they are gone for too long.
537
664
</para>
538
665
<para>
539
If a client is compromised, its downtime should be duly noted
540
by the server which would therefore declare the client
541
invalid. But if the server was ever restarted, it would
542
re-read its client list from its configuration file and again
543
regard all clients therein as valid, and hence eligible to
544
receive their passwords. Therefore, be careful when
545
restarting servers if it is suspected that a client has, in
546
fact, been compromised by parties who may now be running a
547
fake Mandos client with the keys from the non-encrypted
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
551
configuration file to omit any suspect clients, and restart
552
the server program.
553
</para>
554
<para>
555
666
For more details on client-side security, see
556
667
<citerefentry><refentrytitle>mandos-client</refentrytitle>
557
668
<manvolnum>8mandos</manvolnum></citerefentry>.
562
673
<refsect1 id="see_also">
563
674
<title>SEE ALSO</title>
564
675
<para>
565
<citerefentry>
566
<refentrytitle>mandos-clients.conf</refentrytitle>
567
<manvolnum>5</manvolnum></citerefentry>, <citerefentry>
568
<refentrytitle>mandos.conf</refentrytitle>
569
<manvolnum>5</manvolnum></citerefentry>, <citerefentry>
570
<refentrytitle>mandos-client</refentrytitle>
571
<manvolnum>8mandos</manvolnum></citerefentry>, <citerefentry>
572
<refentrytitle>sh</refentrytitle><manvolnum>1</manvolnum>
573
</citerefentry>
676
<citerefentry><refentrytitle>intro</refentrytitle>
677
<manvolnum>8mandos</manvolnum></citerefentry>,
678
<citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
679
<manvolnum>5</manvolnum></citerefentry>,
680
<citerefentry><refentrytitle>mandos.conf</refentrytitle>
681
<manvolnum>5</manvolnum></citerefentry>,
682
<citerefentry><refentrytitle>mandos-client</refentrytitle>
683
<manvolnum>8mandos</manvolnum></citerefentry>,
684
<citerefentry><refentrytitle>sh</refentrytitle>
685
<manvolnum>1</manvolnum></citerefentry>
574
686
</para>
575
687
<variablelist>
576
688
<varlistentry>
597
709
</varlistentry>
598
710
<varlistentry>
599
711
<term>
600
<ulink url="http://www.gnu.org/software/gnutls/"
601
>GnuTLS</ulink>
712
<ulink url="https://gnutls.org/">GnuTLS</ulink>
602
713
</term>
603
714
<listitem>
604
715
<para>
642
753
</varlistentry>
643
754
<varlistentry>
644
755
<term>
645
RFC 4346: <citetitle>The Transport Layer Security (TLS)
646
Protocol Version 1.1</citetitle>
756
RFC 5246: <citetitle>The Transport Layer Security (TLS)
757
Protocol Version 1.2</citetitle>
647
758
</term>
648
759
<listitem>
649
760
<para>
650
TLS 1.1 is the protocol implemented by GnuTLS.
761
TLS 1.2 is the protocol implemented by GnuTLS.
651
762
</para>
652
763
</listitem>
653
764
</varlistentry>
663
774
</varlistentry>
664
775
<varlistentry>
665
776
<term>
666
RFC 5081: <citetitle>Using OpenPGP Keys for Transport Layer
667
Security</citetitle>
777
RFC 6091: <citetitle>Using OpenPGP Keys for Transport Layer
778
Security (TLS) Authentication</citetitle>
668
779
</term>
669
780
<listitem>
670
781
<para>
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0