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 237.4.81
- compare with another revision
- download diff
- download tarball
- view history from revision 237.4.81
- Committer: Teddy Hogeborn
- Date: 2016-10-01 13:56:09 UTC
- mfrom: (875 trunk)
- mto: This revision was merged to the branch mainline in revision 876.
- Revision ID: teddy@recompile.se-20161001135609-y5q39hvf2d95utwf
Merge from trunk
- 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 "2009-02-15">
5
<!ENTITY TIMESTAMP "2016-07-03">
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>
36
43
<holder>Teddy Hogeborn</holder>
37
44
<holder>Björn Påhlsson</holder>
38
45
</copyright>
86
93
<sbr/>
87
94
<arg><option>--debug</option></arg>
88
95
<sbr/>
96
<arg><option>--debuglevel
97
<replaceable>LEVEL</replaceable></option></arg>
98
<sbr/>
89
99
<arg><option>--no-dbus</option></arg>
90
100
<sbr/>
91
101
<arg><option>--no-ipv6</option></arg>
102
<sbr/>
103
<arg><option>--no-restore</option></arg>
104
<sbr/>
105
<arg><option>--statedir
106
<replaceable>DIRECTORY</replaceable></option></arg>
107
<sbr/>
108
<arg><option>--socket
109
<replaceable>FD</replaceable></option></arg>
110
<sbr/>
111
<arg><option>--foreground</option></arg>
112
<sbr/>
113
<arg><option>--no-zeroconf</option></arg>
92
114
</cmdsynopsis>
93
115
<cmdsynopsis>
94
116
<command>&COMMANDNAME;</command>
112
134
<para>
113
135
<command>&COMMANDNAME;</command> is a server daemon which
114
136
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.
137
client host computers. For an introduction, see
138
<citerefentry><refentrytitle>intro</refentrytitle>
139
<manvolnum>8mandos</manvolnum></citerefentry>. The Mandos server
140
uses Zeroconf to announce itself on the local network, and uses
141
TLS to communicate securely with and to authenticate the
142
clients. The Mandos server uses IPv6 to allow Mandos clients to
143
use IPv6 link-local addresses, since the clients will probably
144
not have any other addresses configured (see <xref
145
linkend="overview"/>). Any authenticated client is then given
146
the stored pre-encrypted password for that specific client.
123
147
</para>
124
148
</refsect1>
125
149
194
218
</varlistentry>
195
219
196
220
<varlistentry>
221
<term><option>--debuglevel
222
<replaceable>LEVEL</replaceable></option></term>
223
<listitem>
224
<para>
225
Set the debugging log level.
226
<replaceable>LEVEL</replaceable> is a string, one of
227
<quote><literal>CRITICAL</literal></quote>,
228
<quote><literal>ERROR</literal></quote>,
229
<quote><literal>WARNING</literal></quote>,
230
<quote><literal>INFO</literal></quote>, or
231
<quote><literal>DEBUG</literal></quote>, in order of
232
increasing verbosity. The default level is
233
<quote><literal>WARNING</literal></quote>.
234
</para>
235
</listitem>
236
</varlistentry>
237
238
<varlistentry>
197
239
<term><option>--priority <replaceable>
198
240
PRIORITY</replaceable></option></term>
199
241
<listitem>
250
292
<xi:include href="mandos-options.xml" xpointer="ipv6"/>
251
293
</listitem>
252
294
</varlistentry>
295
296
<varlistentry>
297
<term><option>--no-restore</option></term>
298
<listitem>
299
<xi:include href="mandos-options.xml" xpointer="restore"/>
300
<para>
301
See also <xref linkend="persistent_state"/>.
302
</para>
303
</listitem>
304
</varlistentry>
305
306
<varlistentry>
307
<term><option>--statedir
308
<replaceable>DIRECTORY</replaceable></option></term>
309
<listitem>
310
<xi:include href="mandos-options.xml" xpointer="statedir"/>
311
</listitem>
312
</varlistentry>
313
314
<varlistentry>
315
<term><option>--socket
316
<replaceable>FD</replaceable></option></term>
317
<listitem>
318
<xi:include href="mandos-options.xml" xpointer="socket"/>
319
</listitem>
320
</varlistentry>
321
322
<varlistentry>
323
<term><option>--foreground</option></term>
324
<listitem>
325
<xi:include href="mandos-options.xml"
326
xpointer="foreground"/>
327
</listitem>
328
</varlistentry>
329
330
<varlistentry>
331
<term><option>--no-zeroconf</option></term>
332
<listitem>
333
<xi:include href="mandos-options.xml" xpointer="zeroconf"/>
334
</listitem>
335
</varlistentry>
336
253
337
</variablelist>
254
338
</refsect1>
255
339
327
411
The server will, by default, continually check that the clients
328
412
are still up. If a client has not been confirmed as being up
329
413
for some time, the client is assumed to be compromised and is no
330
longer eligible to receive the encrypted password. The timeout,
331
checker program, and interval between checks can be configured
332
both globally and per client; see <citerefentry>
414
longer eligible to receive the encrypted password. (Manual
415
intervention is required to re-enable a client.) The timeout,
416
extended timeout, checker program, and interval between checks
417
can be configured both globally and per client; see
418
<citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
419
<manvolnum>5</manvolnum></citerefentry>.
420
</para>
421
</refsect1>
422
423
<refsect1 id="approval">
424
<title>APPROVAL</title>
425
<para>
426
The server can be configured to require manual approval for a
427
client before it is sent its secret. The delay to wait for such
428
approval and the default action (approve or deny) can be
429
configured both globally and per client; see <citerefentry>
333
430
<refentrytitle>mandos-clients.conf</refentrytitle>
334
<manvolnum>5</manvolnum></citerefentry>.
335
</para>
431
<manvolnum>5</manvolnum></citerefentry>. By default all clients
432
will be approved immediately without delay.
433
</para>
434
<para>
435
This can be used to deny a client its secret if not manually
436
approved within a specified time. It can also be used to make
437
the server delay before giving a client its secret, allowing
438
optional manual denying of this specific client.
439
</para>
440
336
441
</refsect1>
337
442
338
443
<refsect1 id="logging">
339
444
<title>LOGGING</title>
340
445
<para>
341
446
The server will send log message with various severity levels to
342
<filename>/dev/log</filename>. With the
447
<filename class="devicefile">/dev/log</filename>. With the
343
448
<option>--debug</option> option, it will log even more messages,
344
449
and also show them on the console.
345
450
</para>
346
451
</refsect1>
347
452
453
<refsect1 id="persistent_state">
454
<title>PERSISTENT STATE</title>
455
<para>
456
Client settings, initially read from
457
<filename>clients.conf</filename>, are persistent across
458
restarts, and run-time changes will override settings in
459
<filename>clients.conf</filename>. However, if a setting is
460
<emphasis>changed</emphasis> (or a client added, or removed) in
461
<filename>clients.conf</filename>, this will take precedence.
462
</para>
463
</refsect1>
464
348
465
<refsect1 id="dbus_interface">
349
466
<title>D-BUS INTERFACE</title>
350
467
<para>
351
468
The server will by default provide a D-Bus system bus interface.
352
469
This interface will only be accessible by the root user or a
353
Mandos-specific user, if such a user exists.
354
<!-- XXX -->
470
Mandos-specific user, if such a user exists. For documentation
471
of the D-Bus API, see the file <filename>DBUS-API</filename>.
355
472
</para>
356
473
</refsect1>
357
474
412
529
</listitem>
413
530
</varlistentry>
414
531
<varlistentry>
415
<term><filename>/var/run/mandos.pid</filename></term>
416
<listitem>
417
<para>
418
The file containing the process id of
419
<command>&COMMANDNAME;</command>.
420
</para>
421
</listitem>
422
</varlistentry>
423
<varlistentry>
424
<term><filename>/dev/log</filename></term>
532
<term><filename>/run/mandos.pid</filename></term>
533
<listitem>
534
<para>
535
The file containing the process id of the
536
<command>&COMMANDNAME;</command> process started last.
537
<emphasis >Note:</emphasis> If the <filename
538
class="directory">/run</filename> directory does not
539
exist, <filename>/var/run/mandos.pid</filename> will be
540
used instead.
541
</para>
542
</listitem>
543
</varlistentry>
544
<varlistentry>
545
<term><filename
546
class="directory">/var/lib/mandos</filename></term>
547
<listitem>
548
<para>
549
Directory where persistent state will be saved. Change
550
this with the <option>--statedir</option> option. See
551
also the <option>--no-restore</option> option.
552
</para>
553
</listitem>
554
</varlistentry>
555
<varlistentry>
556
<term><filename class="devicefile">/dev/log</filename></term>
425
557
<listitem>
426
558
<para>
427
559
The Unix domain socket to where local syslog messages are
450
582
backtrace. This could be considered a feature.
451
583
</para>
452
584
<para>
453
Currently, if a client is declared <quote>invalid</quote> due to
454
having timed out, the server does not record this fact onto
455
permanent storage. This has some security implications, see
456
<xref linkend="clients"/>.
457
</para>
458
<para>
459
There is currently no way of querying the server of the current
460
status of clients, other than analyzing its <systemitem
461
class="service">syslog</systemitem> output.
462
</para>
463
<para>
464
585
There is no fine-grained control over logging and debug output.
465
586
</para>
466
587
<para>
467
Debug mode is conflated with running in the foreground.
468
</para>
469
<para>
470
The console log messages do not show a time stamp.
471
</para>
472
<para>
473
588
This server does not check the expire time of clients’ OpenPGP
474
589
keys.
475
590
</para>
591
<xi:include href="bugs.xml"/>
476
592
</refsect1>
477
593
478
594
<refsect1 id="example">
488
604
<informalexample>
489
605
<para>
490
606
Run the server in debug mode, read configuration files from
491
the <filename>~/mandos</filename> directory, and use the
492
Zeroconf service name <quote>Test</quote> to not collide with
493
any other official Mandos server on this host:
607
the <filename class="directory">~/mandos</filename> directory,
608
and use the Zeroconf service name <quote>Test</quote> to not
609
collide with any other official Mandos server on this host:
494
610
</para>
495
611
<para>
496
612
545
661
compromised if they are gone for too long.
546
662
</para>
547
663
<para>
548
If a client is compromised, its downtime should be duly noted
549
by the server which would therefore declare the client
550
invalid. But if the server was ever restarted, it would
551
re-read its client list from its configuration file and again
552
regard all clients therein as valid, and hence eligible to
553
receive their passwords. Therefore, be careful when
554
restarting servers if it is suspected that a client has, in
555
fact, been compromised by parties who may now be running a
556
fake Mandos client with the keys from the non-encrypted
557
initial <acronym>RAM</acronym> image of the client host. What
558
should be done in that case (if restarting the server program
559
really is necessary) is to stop the server program, edit the
560
configuration file to omit any suspect clients, and restart
561
the server program.
562
</para>
563
<para>
564
664
For more details on client-side security, see
565
665
<citerefentry><refentrytitle>mandos-client</refentrytitle>
566
666
<manvolnum>8mandos</manvolnum></citerefentry>.
571
671
<refsect1 id="see_also">
572
672
<title>SEE ALSO</title>
573
673
<para>
574
<citerefentry>
575
<refentrytitle>mandos-clients.conf</refentrytitle>
576
<manvolnum>5</manvolnum></citerefentry>, <citerefentry>
577
<refentrytitle>mandos.conf</refentrytitle>
578
<manvolnum>5</manvolnum></citerefentry>, <citerefentry>
579
<refentrytitle>mandos-client</refentrytitle>
580
<manvolnum>8mandos</manvolnum></citerefentry>, <citerefentry>
581
<refentrytitle>sh</refentrytitle><manvolnum>1</manvolnum>
582
</citerefentry>
674
<citerefentry><refentrytitle>intro</refentrytitle>
675
<manvolnum>8mandos</manvolnum></citerefentry>,
676
<citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
677
<manvolnum>5</manvolnum></citerefentry>,
678
<citerefentry><refentrytitle>mandos.conf</refentrytitle>
679
<manvolnum>5</manvolnum></citerefentry>,
680
<citerefentry><refentrytitle>mandos-client</refentrytitle>
681
<manvolnum>8mandos</manvolnum></citerefentry>,
682
<citerefentry><refentrytitle>sh</refentrytitle>
683
<manvolnum>1</manvolnum></citerefentry>
583
684
</para>
584
685
<variablelist>
585
686
<varlistentry>
606
707
</varlistentry>
607
708
<varlistentry>
608
709
<term>
609
<ulink url="http://www.gnu.org/software/gnutls/"
610
>GnuTLS</ulink>
710
<ulink url="https://gnutls.org/">GnuTLS</ulink>
611
711
</term>
612
712
<listitem>
613
713
<para>
651
751
</varlistentry>
652
752
<varlistentry>
653
753
<term>
654
RFC 4346: <citetitle>The Transport Layer Security (TLS)
655
Protocol Version 1.1</citetitle>
754
RFC 5246: <citetitle>The Transport Layer Security (TLS)
755
Protocol Version 1.2</citetitle>
656
756
</term>
657
757
<listitem>
658
758
<para>
659
TLS 1.1 is the protocol implemented by GnuTLS.
759
TLS 1.2 is the protocol implemented by GnuTLS.
660
760
</para>
661
761
</listitem>
662
762
</varlistentry>
672
772
</varlistentry>
673
773
<varlistentry>
674
774
<term>
675
RFC 5081: <citetitle>Using OpenPGP Keys for Transport Layer
676
Security</citetitle>
775
RFC 6091: <citetitle>Using OpenPGP Keys for Transport Layer
776
Security (TLS) Authentication</citetitle>
677
777
</term>
678
778
<listitem>
679
779
<para>
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0