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 "2010-09-26">
6
<!ENTITY % common SYSTEM "common.ent">
6
<!ENTITY TIMESTAMP "2008-09-12">
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>
86
83
<replaceable>DIRECTORY</replaceable></option></arg>
88
85
<arg><option>--debug</option></arg>
90
<arg><option>--debuglevel
91
<replaceable>LEVEL</replaceable></option></arg>
93
<arg><option>--no-dbus</option></arg>
95
<arg><option>--no-ipv6</option></arg>
98
88
<command>&COMMANDNAME;</command>
201
<term><option>--debuglevel
202
<replaceable>LEVEL</replaceable></option></term>
205
Set the debugging log level.
206
<replaceable>LEVEL</replaceable> is a string, one of
207
<quote><literal>CRITICAL</literal></quote>,
208
<quote><literal>ERROR</literal></quote>,
209
<quote><literal>WARNING</literal></quote>,
210
<quote><literal>INFO</literal></quote>, or
211
<quote><literal>DEBUG</literal></quote>, in order of
212
increasing verbosity. The default level is
213
<quote><literal>WARNING</literal></quote>.
219
191
<term><option>--priority <replaceable>
220
192
PRIORITY</replaceable></option></term>
260
<term><option>--no-dbus</option></term>
262
<xi:include href="mandos-options.xml" xpointer="dbus"/>
264
See also <xref linkend="dbus_interface"/>.
270
<term><option>--no-ipv6</option></term>
272
<xi:include href="mandos-options.xml" xpointer="ipv6"/>
349
304
The server will, by default, continually check that the clients
350
305
are still up. If a client has not been confirmed as being up
351
306
for some time, the client is assumed to be compromised and is no
352
longer eligible to receive the encrypted password. (Manual
353
intervention is required to re-enable a client.) The timeout,
307
longer eligible to receive the encrypted password. The timeout,
354
308
checker program, and interval between checks can be configured
355
309
both globally and per client; see <citerefentry>
356
310
<refentrytitle>mandos-clients.conf</refentrytitle>
357
<manvolnum>5</manvolnum></citerefentry>. A client successfully
358
receiving its password will also be treated as a successful
363
<refsect1 id="approval">
364
<title>APPROVAL</title>
366
The server can be configured to require manual approval for a
367
client before it is sent its secret. The delay to wait for such
368
approval and the default action (approve or deny) can be
369
configured both globally and per client; see <citerefentry>
370
<refentrytitle>mandos-clients.conf</refentrytitle>
371
<manvolnum>5</manvolnum></citerefentry>. By default all clients
372
will be approved immediately without delay.
375
This can be used to deny a client its secret if not manually
376
approved within a specified time. It can also be used to make
377
the server delay before giving a client its secret, allowing
378
optional manual denying of this specific client.
311
<manvolnum>5</manvolnum></citerefentry>.
383
315
<refsect1 id="logging">
393
<refsect1 id="dbus_interface">
394
<title>D-BUS INTERFACE</title>
396
The server will by default provide a D-Bus system bus interface.
397
This interface will only be accessible by the root user or a
398
Mandos-specific user, if such a user exists. For documentation
399
of the D-Bus API, see the file <filename>DBUS-API</filename>.
403
325
<refsect1 id="exit_status">
404
326
<title>EXIT STATUS</title>
460
382
<term><filename>/var/run/mandos.pid</filename></term>
463
The file containing the process id of the
464
<command>&COMMANDNAME;</command> process started last.
385
The file containing the process id of
386
<command>&COMMANDNAME;</command>.
495
417
backtrace. This could be considered a feature.
498
Currently, if a client is disabled due to having timed out, the
499
server does not record this fact onto permanent storage. This
500
has some security implications, see <xref linkend="clients"/>.
420
Currently, if a client is declared <quote>invalid</quote> due to
421
having timed out, the server does not record this fact onto
422
permanent storage. This has some security implications, see
423
<xref linkend="CLIENTS"/>.
426
There is currently no way of querying the server of the current
427
status of clients, other than analyzing its <systemitem
428
class="service">syslog</systemitem> output.
503
431
There is no fine-grained control over logging and debug output.
506
434
Debug mode is conflated with running in the foreground.
509
The console log messages do not show a time stamp.
437
The console log messages does not show a time stamp.
512
440
This server does not check the expire time of clients’ OpenPGP
576
504
<citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
577
505
<manvolnum>5</manvolnum></citerefentry>)
578
506
<emphasis>must</emphasis> be made non-readable by anyone
579
except the user starting the server (usually root).
507
except the user running the server.
582
510
As detailed in <xref linkend="checking"/>, the status of all
587
515
If a client is compromised, its downtime should be duly noted
588
by the server which would therefore disable the client. But
589
if the server was ever restarted, it would re-read its client
590
list from its configuration file and again regard all clients
591
therein as enabled, and hence eligible to receive their
592
passwords. Therefore, be careful when restarting servers if
593
it is suspected that a client has, in fact, been compromised
594
by parties who may now be running a fake Mandos client with
595
the keys from the non-encrypted initial <acronym>RAM</acronym>
596
image of the client host. What should be done in that case
597
(if restarting the server program really is necessary) is to
598
stop the server program, edit the configuration file to omit
599
any suspect clients, and restart the server program.
516
by the server which would therefore declare the client
517
invalid. But if the server was ever restarted, it would
518
re-read its client list from its configuration file and again
519
regard all clients therein as valid, and hence eligible to
520
receive their passwords. Therefore, be careful when
521
restarting servers if it is suspected that a client has, in
522
fact, been compromised by parties who may now be running a
523
fake Mandos client with the keys from the non-encrypted
524
initial <acronym>RAM</acronym> image of the client host. What
525
should be done in that case (if restarting the server program
526
really is necessary) is to stop the server program, edit the
527
configuration file to omit any suspect clients, and restart
602
531
For more details on client-side security, see
added
removed
mandos.xml
