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 "2011-02-27">
6
6
<!ENTITY % common SYSTEM "common.ent">
87
89
<arg><option>--debug</option></arg>
91
<arg><option>--debuglevel
92
<replaceable>LEVEL</replaceable></option></arg>
89
94
<arg><option>--no-dbus</option></arg>
91
96
<arg><option>--no-ipv6</option></arg>
202
<term><option>--debuglevel
203
<replaceable>LEVEL</replaceable></option></term>
206
Set the debugging log level.
207
<replaceable>LEVEL</replaceable> is a string, one of
208
<quote><literal>CRITICAL</literal></quote>,
209
<quote><literal>ERROR</literal></quote>,
210
<quote><literal>WARNING</literal></quote>,
211
<quote><literal>INFO</literal></quote>, or
212
<quote><literal>DEBUG</literal></quote>, in order of
213
increasing verbosity. The default level is
214
<quote><literal>WARNING</literal></quote>.
197
220
<term><option>--priority <replaceable>
198
221
PRIORITY</replaceable></option></term>
327
350
The server will, by default, continually check that the clients
328
351
are still up. If a client has not been confirmed as being up
329
352
for some time, the client is assumed to be compromised and is no
330
longer eligible to receive the encrypted password. The timeout,
353
longer eligible to receive the encrypted password. (Manual
354
intervention is required to re-enable a client.) The timeout,
331
355
checker program, and interval between checks can be configured
332
356
both globally and per client; see <citerefentry>
333
357
<refentrytitle>mandos-clients.conf</refentrytitle>
334
<manvolnum>5</manvolnum></citerefentry>.
358
<manvolnum>5</manvolnum></citerefentry>. A client successfully
359
receiving its password will also be treated as a successful
364
<refsect1 id="approval">
365
<title>APPROVAL</title>
367
The server can be configured to require manual approval for a
368
client before it is sent its secret. The delay to wait for such
369
approval and the default action (approve or deny) can be
370
configured both globally and per client; see <citerefentry>
371
<refentrytitle>mandos-clients.conf</refentrytitle>
372
<manvolnum>5</manvolnum></citerefentry>. By default all clients
373
will be approved immediately without delay.
376
This can be used to deny a client its secret if not manually
377
approved within a specified time. It can also be used to make
378
the server delay before giving a client its secret, allowing
379
optional manual denying of this specific client.
338
384
<refsect1 id="logging">
351
397
The server will by default provide a D-Bus system bus interface.
352
398
This interface will only be accessible by the root user or a
353
Mandos-specific user, if such a user exists.
399
Mandos-specific user, if such a user exists. For documentation
400
of the D-Bus API, see the file <filename>DBUS-API</filename>.
415
461
<term><filename>/var/run/mandos.pid</filename></term>
418
The file containing the process id of
419
<command>&COMMANDNAME;</command>.
464
The file containing the process id of the
465
<command>&COMMANDNAME;</command> process started last.
450
496
backtrace. This could be considered a feature.
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"/>.
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.
499
Currently, if a client is disabled due to having timed out, the
500
server does not record this fact onto permanent storage. This
501
has some security implications, see <xref linkend="clients"/>.
464
504
There is no fine-grained control over logging and debug output.
548
588
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
589
by the server which would therefore disable the client. But
590
if the server was ever restarted, it would re-read its client
591
list from its configuration file and again regard all clients
592
therein as enabled, and hence eligible to receive their
593
passwords. Therefore, be careful when restarting servers if
594
it is suspected that a client has, in fact, been compromised
595
by parties who may now be running a fake Mandos client with
596
the keys from the non-encrypted initial <acronym>RAM</acronym>
597
image of the client host. What should be done in that case
598
(if restarting the server program really is necessary) is to
599
stop the server program, edit the configuration file to omit
600
any suspect clients, and restart the server program.
564
603
For more details on client-side security, see
added
removed
mandos.xml
