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">
4
5
<!ENTITY COMMANDNAME "mandos">
5
<!ENTITY TIMESTAMP "2009-09-17">
6
<!ENTITY % common SYSTEM "common.ent">
6
<!ENTITY TIMESTAMP "2008-08-29">
10
9
<refentry xmlns:xi="http://www.w3.org/2001/XInclude">
12
11
<title>Mandos Manual</title>
13
12
<!-- NWalsh’s docbook scripts use this to generate the footer: -->
14
13
<productname>Mandos</productname>
15
<productnumber>&version;</productnumber>
14
<productnumber>&VERSION;</productnumber>
16
15
<date>&TIMESTAMP;</date>
36
34
<holder>Teddy Hogeborn</holder>
37
35
<holder>Björn Påhlsson</holder>
39
<xi:include href="legalnotice.xml"/>
39
This manual page is free software: you can redistribute it
40
and/or modify it under the terms of the GNU General Public
41
License as published by the Free Software Foundation,
42
either version 3 of the License, or (at your option) any
47
This manual page is distributed in the hope that it will
48
be useful, but WITHOUT ANY WARRANTY; without even the
49
implied warranty of MERCHANTABILITY or FITNESS FOR A
50
PARTICULAR PURPOSE. See the GNU General Public License
55
You should have received a copy of the GNU General Public
56
License along with this program; If not, see
57
<ulink url="http://www.gnu.org/licenses/"/>.
43
63
<refentrytitle>&COMMANDNAME;</refentrytitle>
44
64
<manvolnum>8</manvolnum>
48
68
<refname><command>&COMMANDNAME;</command></refname>
50
Gives encrypted passwords to authenticated Mandos clients
70
Sends encrypted passwords to authenticated Mandos clients
56
76
<command>&COMMANDNAME;</command>
58
<arg choice="plain"><option>--interface
59
<replaceable>NAME</replaceable></option></arg>
60
<arg choice="plain"><option>-i
61
<replaceable>NAME</replaceable></option></arg>
65
<arg choice="plain"><option>--address
66
<replaceable>ADDRESS</replaceable></option></arg>
67
<arg choice="plain"><option>-a
68
<replaceable>ADDRESS</replaceable></option></arg>
72
<arg choice="plain"><option>--port
73
<replaceable>PORT</replaceable></option></arg>
74
<arg choice="plain"><option>-p
75
<replaceable>PORT</replaceable></option></arg>
78
<arg><option>--priority
79
<replaceable>PRIORITY</replaceable></option></arg>
81
<arg><option>--servicename
82
<replaceable>NAME</replaceable></option></arg>
84
<arg><option>--configdir
85
<replaceable>DIRECTORY</replaceable></option></arg>
87
<arg><option>--debug</option></arg>
89
<arg><option>--no-dbus</option></arg>
91
<arg><option>--no-ipv6</option></arg>
77
<arg>--interface<arg choice="plain">NAME</arg></arg>
78
<arg>--address<arg choice="plain">ADDRESS</arg></arg>
79
<arg>--port<arg choice="plain">PORT</arg></arg>
80
<arg>--priority<arg choice="plain">PRIORITY</arg></arg>
81
<arg>--servicename<arg choice="plain">NAME</arg></arg>
82
<arg>--configdir<arg choice="plain">DIRECTORY</arg></arg>
86
<command>&COMMANDNAME;</command>
87
<arg>-i<arg choice="plain">NAME</arg></arg>
88
<arg>-a<arg choice="plain">ADDRESS</arg></arg>
89
<arg>-p<arg choice="plain">PORT</arg></arg>
90
<arg>--priority<arg choice="plain">PRIORITY</arg></arg>
91
<arg>--servicename<arg choice="plain">NAME</arg></arg>
92
<arg>--configdir<arg choice="plain">DIRECTORY</arg></arg>
94
96
<command>&COMMANDNAME;</command>
95
97
<group choice="req">
96
<arg choice="plain"><option>--help</option></arg>
97
<arg choice="plain"><option>-h</option></arg>
98
<arg choice="plain">-h</arg>
99
<arg choice="plain">--help</arg>
101
103
<command>&COMMANDNAME;</command>
102
<arg choice="plain"><option>--version</option></arg>
104
<arg choice="plain">--version</arg>
105
107
<command>&COMMANDNAME;</command>
106
<arg choice="plain"><option>--check</option></arg>
108
<arg choice="plain">--check</arg>
108
110
</refsynopsisdiv>
110
112
<refsect1 id="description">
111
113
<title>DESCRIPTION</title>
121
123
Any authenticated client is then given the stored pre-encrypted
122
124
password for that specific client.
126
129
<refsect1 id="purpose">
127
130
<title>PURPOSE</title>
129
133
The purpose of this is to enable <emphasis>remote and unattended
130
134
rebooting</emphasis> of client host computer with an
131
135
<emphasis>encrypted root file system</emphasis>. See <xref
132
136
linkend="overview"/> for details.
136
141
<refsect1 id="options">
137
142
<title>OPTIONS</title>
140
<term><option>--help</option></term>
141
<term><option>-h</option></term>
146
<term><literal>-h</literal>, <literal>--help</literal></term>
144
149
Show a help message and exit
150
<term><option>--interface</option>
151
<replaceable>NAME</replaceable></term>
152
<term><option>-i</option>
153
<replaceable>NAME</replaceable></term>
155
<term><literal>-i</literal>, <literal>--interface <replaceable
156
>NAME</replaceable></literal></term>
155
158
<xi:include href="mandos-options.xml" xpointer="interface"/>
160
<term><option>--address
161
<replaceable>ADDRESS</replaceable></option></term>
163
<replaceable>ADDRESS</replaceable></option></term>
163
<term><literal>-a</literal>, <literal>--address <replaceable>
164
ADDRESS</replaceable></literal></term>
165
166
<xi:include href="mandos-options.xml" xpointer="address"/>
171
<replaceable>PORT</replaceable></option></term>
173
<replaceable>PORT</replaceable></option></term>
171
<term><literal>-p</literal>, <literal>--port <replaceable>
172
PORT</replaceable></literal></term>
175
174
<xi:include href="mandos-options.xml" xpointer="port"/>
180
<term><option>--check</option></term>
179
<term><literal>--check</literal></term>
183
182
Run the server’s self-tests. This includes any unit
190
<term><option>--debug</option></term>
189
<term><literal>--debug</literal></term>
192
191
<xi:include href="mandos-options.xml" xpointer="debug"/>
197
<term><option>--priority <replaceable>
198
PRIORITY</replaceable></option></term>
196
<term><literal>--priority <replaceable>
197
PRIORITY</replaceable></literal></term>
200
199
<xi:include href="mandos-options.xml" xpointer="priority"/>
205
<term><option>--servicename
206
<replaceable>NAME</replaceable></option></term>
204
<term><literal>--servicename <replaceable>NAME</replaceable>
208
207
<xi:include href="mandos-options.xml"
209
208
xpointer="servicename"/>
214
<term><option>--configdir
215
<replaceable>DIRECTORY</replaceable></option></term>
213
<term><literal>--configdir <replaceable>DIR</replaceable>
218
217
Directory to search for configuration files. Default is
229
<term><option>--version</option></term>
228
<term><literal>--version</literal></term>
232
231
Prints the program version and exit.
238
<term><option>--no-dbus</option></term>
240
<xi:include href="mandos-options.xml" xpointer="dbus"/>
242
See also <xref linkend="dbus_interface"/>.
248
<term><option>--no-ipv6</option></term>
250
<xi:include href="mandos-options.xml" xpointer="ipv6"/>
256
238
<refsect1 id="overview">
257
239
<title>OVERVIEW</title>
258
240
<xi:include href="overview.xml"/>
260
242
This program is the server part. It is a normal server program
261
243
and will run in a normal system environment, not in an initial
262
<acronym>RAM</acronym> disk environment.
244
RAM disk environment.
266
248
<refsect1 id="protocol">
267
249
<title>NETWORK PROTOCOL</title>
321
303
</tbody></tgroup></table>
324
306
<refsect1 id="checking">
325
307
<title>CHECKING</title>
327
309
The server will, by default, continually check that the clients
328
310
are still up. If a client has not been confirmed as being up
329
311
for some time, the client is assumed to be compromised and is no
330
longer eligible to receive the encrypted password. (Manual
331
intervention is required to re-enable a client.) The timeout,
312
longer eligible to receive the encrypted password. The timeout,
332
313
checker program, and interval between checks can be configured
333
314
both globally and per client; see <citerefentry>
334
315
<refentrytitle>mandos-clients.conf</refentrytitle>
335
<manvolnum>5</manvolnum></citerefentry>. A client successfully
336
receiving its password will also be treated as a successful
316
<manvolnum>5</manvolnum></citerefentry>.
341
320
<refsect1 id="logging">
342
321
<title>LOGGING</title>
347
326
and also show them on the console.
351
<refsect1 id="dbus_interface">
352
<title>D-BUS INTERFACE</title>
354
The server will by default provide a D-Bus system bus interface.
355
This interface will only be accessible by the root user or a
356
Mandos-specific user, if such a user exists.
361
330
<refsect1 id="exit_status">
362
331
<title>EXIT STATUS</title>
456
425
Currently, if a client is declared <quote>invalid</quote> due to
457
426
having timed out, the server does not record this fact onto
458
427
permanent storage. This has some security implications, see
459
<xref linkend="clients"/>.
428
<xref linkend="CLIENTS"/>.
462
431
There is currently no way of querying the server of the current
516
481
</informalexample>
519
484
<refsect1 id="security">
520
485
<title>SECURITY</title>
521
<refsect2 id="server">
486
<refsect2 id="SERVER">
522
487
<title>SERVER</title>
524
489
Running this <command>&COMMANDNAME;</command> server program
525
490
should not in itself present any security risk to the host
526
computer running it. The program switches to a non-root user
491
computer running it. The program does not need any special
492
privileges to run, and is designed to run as a non-root user.
530
<refsect2 id="clients">
495
<refsect2 id="CLIENTS">
531
496
<title>CLIENTS</title>
533
498
The server only gives out its stored data to clients which
540
505
<citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
541
506
<manvolnum>5</manvolnum></citerefentry>)
542
507
<emphasis>must</emphasis> be made non-readable by anyone
543
except the user starting the server (usually root).
508
except the user running the server.
546
511
As detailed in <xref linkend="checking"/>, the status of all
557
522
restarting servers if it is suspected that a client has, in
558
523
fact, been compromised by parties who may now be running a
559
524
fake Mandos client with the keys from the non-encrypted
560
initial <acronym>RAM</acronym> image of the client host. What
561
should be done in that case (if restarting the server program
562
really is necessary) is to stop the server program, edit the
525
initial RAM image of the client host. What should be done in
526
that case (if restarting the server program really is
527
necessary) is to stop the server program, edit the
563
528
configuration file to omit any suspect clients, and restart
564
529
the server program.
567
532
For more details on client-side security, see
568
<citerefentry><refentrytitle>mandos-client</refentrytitle>
533
<citerefentry><refentrytitle>password-request</refentrytitle>
569
534
<manvolnum>8mandos</manvolnum></citerefentry>.
574
539
<refsect1 id="see_also">
575
540
<title>SEE ALSO</title>
543
<refentrytitle>mandos.conf</refentrytitle>
544
<manvolnum>5</manvolnum></citerefentry>, <citerefentry>
578
545
<refentrytitle>mandos-clients.conf</refentrytitle>
579
546
<manvolnum>5</manvolnum></citerefentry>, <citerefentry>
580
<refentrytitle>mandos.conf</refentrytitle>
581
<manvolnum>5</manvolnum></citerefentry>, <citerefentry>
582
<refentrytitle>mandos-client</refentrytitle>
547
<refentrytitle>password-request</refentrytitle>
583
548
<manvolnum>8mandos</manvolnum></citerefentry>, <citerefentry>
584
549
<refentrytitle>sh</refentrytitle><manvolnum>1</manvolnum>