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mandos-keygen.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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        "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY VERSION "1.0">
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<!ENTITY COMMANDNAME "mandos-keygen">
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<!ENTITY TIMESTAMP "2008-09-20">
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]>
8
 
 
9
 
<refentry xmlns:xi="http://www.w3.org/2001/XInclude">
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  <refentryinfo>
11
 
    <title>Mandos Manual</title>
12
 
    <!-- NWalsh’s docbook scripts use this to generate the footer: -->
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    <productname>Mandos</productname>
14
 
    <productnumber>&VERSION;</productnumber>
15
 
    <date>&TIMESTAMP;</date>
16
 
    <authorgroup>
17
 
      <author>
18
 
        <firstname>Björn</firstname>
19
 
        <surname>Påhlsson</surname>
20
 
        <address>
21
 
          <email>belorn@fukt.bsnet.se</email>
22
 
        </address>
23
 
      </author>
24
 
      <author>
25
 
        <firstname>Teddy</firstname>
26
 
        <surname>Hogeborn</surname>
27
 
        <address>
28
 
          <email>teddy@fukt.bsnet.se</email>
29
 
        </address>
30
 
      </author>
31
 
    </authorgroup>
32
 
    <copyright>
33
 
      <year>2008</year>
34
 
      <holder>Teddy Hogeborn</holder>
35
 
      <holder>Björn Påhlsson</holder>
36
 
    </copyright>
37
 
    <xi:include href="legalnotice.xml"/>
38
 
  </refentryinfo>
39
 
  
40
 
  <refmeta>
41
 
    <refentrytitle>&COMMANDNAME;</refentrytitle>
42
 
    <manvolnum>8</manvolnum>
43
 
  </refmeta>
44
 
  
45
 
  <refnamediv>
46
 
    <refname><command>&COMMANDNAME;</command></refname>
47
 
    <refpurpose>
48
 
      Generate key and password for Mandos client and server.
49
 
    </refpurpose>
50
 
  </refnamediv>
51
 
  
52
 
  <refsynopsisdiv>
53
 
    <cmdsynopsis>
54
 
      <command>&COMMANDNAME;</command>
55
 
      <group>
56
 
        <arg choice="plain"><option>--dir
57
 
        <replaceable>DIRECTORY</replaceable></option></arg>
58
 
        <arg choice="plain"><option>-d
59
 
        <replaceable>DIRECTORY</replaceable></option></arg>
60
 
      </group>
61
 
      <sbr/>
62
 
      <group>
63
 
        <arg choice="plain"><option>--type
64
 
        <replaceable>KEYTYPE</replaceable></option></arg>
65
 
        <arg choice="plain"><option>-t
66
 
        <replaceable>KEYTYPE</replaceable></option></arg>
67
 
      </group>
68
 
      <sbr/>
69
 
      <group>
70
 
        <arg choice="plain"><option>--length
71
 
        <replaceable>BITS</replaceable></option></arg>
72
 
        <arg choice="plain"><option>-l
73
 
        <replaceable>BITS</replaceable></option></arg>
74
 
      </group>
75
 
      <sbr/>
76
 
      <group>
77
 
        <arg choice="plain"><option>--subtype
78
 
        <replaceable>KEYTYPE</replaceable></option></arg>
79
 
        <arg choice="plain"><option>-s
80
 
        <replaceable>KEYTYPE</replaceable></option></arg>
81
 
      </group>
82
 
      <sbr/>
83
 
      <group>
84
 
        <arg choice="plain"><option>--sublength
85
 
        <replaceable>BITS</replaceable></option></arg>
86
 
        <arg choice="plain"><option>-L
87
 
        <replaceable>BITS</replaceable></option></arg>
88
 
      </group>
89
 
      <sbr/>
90
 
      <group>
91
 
        <arg choice="plain"><option>--name
92
 
        <replaceable>NAME</replaceable></option></arg>
93
 
        <arg choice="plain"><option>-n
94
 
        <replaceable>NAME</replaceable></option></arg>
95
 
      </group>
96
 
      <sbr/>
97
 
      <group>
98
 
        <arg choice="plain"><option>--email
99
 
        <replaceable>ADDRESS</replaceable></option></arg>
100
 
        <arg choice="plain"><option>-e
101
 
        <replaceable>ADDRESS</replaceable></option></arg>
102
 
      </group>
103
 
      <sbr/>
104
 
      <group>
105
 
        <arg choice="plain"><option>--comment
106
 
        <replaceable>TEXT</replaceable></option></arg>
107
 
        <arg choice="plain"><option>-c
108
 
        <replaceable>TEXT</replaceable></option></arg>
109
 
      </group>
110
 
      <sbr/>
111
 
      <group>
112
 
        <arg choice="plain"><option>--expire
113
 
        <replaceable>TIME</replaceable></option></arg>
114
 
        <arg choice="plain"><option>-x
115
 
        <replaceable>TIME</replaceable></option></arg>
116
 
      </group>
117
 
      <sbr/>
118
 
      <arg><option>--force</option></arg>
119
 
    </cmdsynopsis>
120
 
    <cmdsynopsis>
121
 
      <command>&COMMANDNAME;</command>
122
 
      <group choice="req">
123
 
        <arg choice="plain"><option>--password</option></arg>
124
 
        <arg choice="plain"><option>-p</option></arg>
125
 
        <arg choice="plain"><option>--passfile
126
 
        <replaceable>FILE</replaceable></option></arg>
127
 
        <arg choice="plain"><option>-F</option>
128
 
        <replaceable>FILE</replaceable></arg>
129
 
      </group>
130
 
      <sbr/>
131
 
      <group>
132
 
        <arg choice="plain"><option>--dir
133
 
        <replaceable>DIRECTORY</replaceable></option></arg>
134
 
        <arg choice="plain"><option>-d
135
 
        <replaceable>DIRECTORY</replaceable></option></arg>
136
 
      </group>
137
 
      <sbr/>
138
 
      <group>
139
 
        <arg choice="plain"><option>--name
140
 
        <replaceable>NAME</replaceable></option></arg>
141
 
        <arg choice="plain"><option>-n
142
 
        <replaceable>NAME</replaceable></option></arg>
143
 
      </group>
144
 
    </cmdsynopsis>
145
 
    <cmdsynopsis>
146
 
      <command>&COMMANDNAME;</command>
147
 
      <group choice="req">
148
 
        <arg choice="plain"><option>--help</option></arg>
149
 
        <arg choice="plain"><option>-h</option></arg>
150
 
      </group>
151
 
    </cmdsynopsis>
152
 
    <cmdsynopsis>
153
 
      <command>&COMMANDNAME;</command>
154
 
      <group choice="req">
155
 
        <arg choice="plain"><option>--version</option></arg>
156
 
        <arg choice="plain"><option>-v</option></arg>
157
 
      </group>
158
 
    </cmdsynopsis>
159
 
  </refsynopsisdiv>
160
 
  
161
 
  <refsect1 id="description">
162
 
    <title>DESCRIPTION</title>
163
 
    <para>
164
 
      <command>&COMMANDNAME;</command> is a program to generate the
165
 
      OpenPGP key used by
166
 
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
167
 
      <manvolnum>8mandos</manvolnum></citerefentry>.  The key is
168
 
      normally written to /etc/mandos for later installation into the
169
 
      initrd image, but this, and most other things, can be changed
170
 
      with command line options.
171
 
    </para>
172
 
    <para>
173
 
      This program can also be used with the
174
 
      <option>--password</option> or <option>--passfile</option>
175
 
      options to generate a ready-made section for
176
 
      <filename>clients.conf</filename> (see
177
 
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
178
 
      <manvolnum>5</manvolnum></citerefentry>).
179
 
    </para>
180
 
  </refsect1>
181
 
  
182
 
  <refsect1 id="purpose">
183
 
    <title>PURPOSE</title>
184
 
    <para>
185
 
      The purpose of this is to enable <emphasis>remote and unattended
186
 
      rebooting</emphasis> of client host computer with an
187
 
      <emphasis>encrypted root file system</emphasis>.  See <xref
188
 
      linkend="overview"/> for details.
189
 
    </para>
190
 
  </refsect1>
191
 
  
192
 
  <refsect1 id="options">
193
 
    <title>OPTIONS</title>
194
 
    
195
 
    <variablelist>
196
 
      <varlistentry>
197
 
        <term><option>--help</option></term>
198
 
        <term><option>-h</option></term>
199
 
        <listitem>
200
 
          <para>
201
 
            Show a help message and exit
202
 
          </para>
203
 
        </listitem>
204
 
      </varlistentry>
205
 
      
206
 
      <varlistentry>
207
 
        <term><option>--dir
208
 
        <replaceable>DIRECTORY</replaceable></option></term>
209
 
        <term><option>-d
210
 
        <replaceable>DIRECTORY</replaceable></option></term>
211
 
        <listitem>
212
 
          <para>
213
 
            Target directory for key files.  Default is
214
 
            <filename>/etc/mandos</filename>.
215
 
          </para>
216
 
        </listitem>
217
 
      </varlistentry>
218
 
      
219
 
      <varlistentry>
220
 
        <term><option>--type
221
 
        <replaceable>TYPE</replaceable></option></term>
222
 
        <term><option>-t
223
 
        <replaceable>TYPE</replaceable></option></term>
224
 
        <listitem>
225
 
          <para>
226
 
            Key type.  Default is <quote>DSA</quote>.
227
 
          </para>
228
 
        </listitem>
229
 
      </varlistentry>
230
 
      
231
 
      <varlistentry>
232
 
        <term><option>--length
233
 
        <replaceable>BITS</replaceable></option></term>
234
 
        <term><option>-l
235
 
        <replaceable>BITS</replaceable></option></term>
236
 
        <listitem>
237
 
          <para>
238
 
            Key length in bits.  Default is 2048.
239
 
          </para>
240
 
        </listitem>
241
 
      </varlistentry>
242
 
      
243
 
      <varlistentry>
244
 
        <term><option>--subtype
245
 
        <replaceable>KEYTYPE</replaceable></option></term>
246
 
        <term><option>-s
247
 
        <replaceable>KEYTYPE</replaceable></option></term>
248
 
        <listitem>
249
 
          <para>
250
 
            Subkey type.  Default is <quote>ELG-E</quote> (Elgamal
251
 
            encryption-only).
252
 
          </para>
253
 
        </listitem>
254
 
      </varlistentry>
255
 
      
256
 
      <varlistentry>
257
 
        <term><option>--sublength
258
 
        <replaceable>BITS</replaceable></option></term>
259
 
        <term><option>-L
260
 
        <replaceable>BITS</replaceable></option></term>
261
 
        <listitem>
262
 
          <para>
263
 
            Subkey length in bits.  Default is 2048.
264
 
          </para>
265
 
        </listitem>
266
 
      </varlistentry>
267
 
      
268
 
      <varlistentry>
269
 
        <term><option>--email
270
 
        <replaceable>ADDRESS</replaceable></option></term>
271
 
        <term><option>-e
272
 
        <replaceable>ADDRESS</replaceable></option></term>
273
 
        <listitem>
274
 
          <para>
275
 
            Email address of key.  Default is empty.
276
 
          </para>
277
 
        </listitem>
278
 
      </varlistentry>
279
 
      
280
 
      <varlistentry>
281
 
        <term><option>--comment
282
 
        <replaceable>TEXT</replaceable></option></term>
283
 
        <term><option>-c
284
 
        <replaceable>TEXT</replaceable></option></term>
285
 
        <listitem>
286
 
          <para>
287
 
            Comment field for key.  The default value is
288
 
            <quote><literal>Mandos client key</literal></quote>.
289
 
          </para>
290
 
        </listitem>
291
 
      </varlistentry>
292
 
      
293
 
      <varlistentry>
294
 
        <term><option>--expire
295
 
        <replaceable>TIME</replaceable></option></term>
296
 
        <term><option>-x
297
 
        <replaceable>TIME</replaceable></option></term>
298
 
        <listitem>
299
 
          <para>
300
 
            Key expire time.  Default is no expiration.  See
301
 
            <citerefentry><refentrytitle>gpg</refentrytitle>
302
 
            <manvolnum>1</manvolnum></citerefentry> for syntax.
303
 
          </para>
304
 
        </listitem>
305
 
      </varlistentry>
306
 
      
307
 
      <varlistentry>
308
 
        <term><option>--force</option></term>
309
 
        <term><option>-f</option></term>
310
 
        <listitem>
311
 
          <para>
312
 
            Force overwriting old key.
313
 
          </para>
314
 
        </listitem>
315
 
      </varlistentry>
316
 
      <varlistentry>
317
 
        <term><option>--password</option></term>
318
 
        <term><option>-p</option></term>
319
 
        <listitem>
320
 
          <para>
321
 
            Prompt for a password and encrypt it with the key already
322
 
            present in either <filename>/etc/mandos</filename> or the
323
 
            directory specified with the <option>--dir</option>
324
 
            option.  Outputs, on standard output, a section suitable
325
 
            for inclusion in <citerefentry><refentrytitle
326
 
            >mandos-clients.conf</refentrytitle><manvolnum
327
 
            >8</manvolnum></citerefentry>.  The host name or the name
328
 
            specified with the <option>--name</option> option is used
329
 
            for the section header.  All other options are ignored,
330
 
            and no key is created.
331
 
          </para>
332
 
        </listitem>
333
 
      </varlistentry>
334
 
      <varlistentry>
335
 
        <term><option>--passfile
336
 
        <replaceable>FILE</replaceable></option></term>
337
 
        <term><option>-F
338
 
        <replaceable>FILE</replaceable></option></term>
339
 
        <listitem>
340
 
          <para>
341
 
            The same as <option>--password</option>, but read from
342
 
            <replaceable>FILE</replaceable>, not the terminal.
343
 
          </para>
344
 
        </listitem>
345
 
      </varlistentry>
346
 
    </variablelist>
347
 
  </refsect1>
348
 
  
349
 
  <refsect1 id="overview">
350
 
    <title>OVERVIEW</title>
351
 
    <xi:include href="overview.xml"/>
352
 
    <para>
353
 
      This program is a small utility to generate new OpenPGP keys for
354
 
      new Mandos clients, and to generate sections for inclusion in
355
 
      <filename>clients.conf</filename> on the server.
356
 
    </para>
357
 
  </refsect1>
358
 
  
359
 
  <refsect1 id="exit_status">
360
 
    <title>EXIT STATUS</title>
361
 
    <para>
362
 
      The exit status will be 0 if a new key (or password, if the
363
 
      <option>--password</option> option was used) was successfully
364
 
      created, otherwise not.
365
 
    </para>
366
 
  </refsect1>
367
 
  
368
 
  <refsect1 id="environment">
369
 
    <title>ENVIRONMENT</title>
370
 
    <variablelist>
371
 
      <varlistentry>
372
 
        <term><envar>TMPDIR</envar></term>
373
 
        <listitem>
374
 
          <para>
375
 
            If set, temporary files will be created here. See
376
 
            <citerefentry><refentrytitle>mktemp</refentrytitle>
377
 
            <manvolnum>1</manvolnum></citerefentry>.
378
 
          </para>
379
 
        </listitem>
380
 
      </varlistentry>
381
 
    </variablelist>
382
 
  </refsect1>
383
 
  
384
 
  <refsect1 id="file">
385
 
    <title>FILES</title>
386
 
    <para>
387
 
      Use the <option>--dir</option> option to change where
388
 
      <command>&COMMANDNAME;</command> will write the key files.  The
389
 
      default file names are shown here.
390
 
    </para>
391
 
    <variablelist>
392
 
      <varlistentry>
393
 
        <term><filename>/etc/mandos/seckey.txt</filename></term>
394
 
        <listitem>
395
 
          <para>
396
 
            OpenPGP secret key file which will be created or
397
 
            overwritten.
398
 
          </para>
399
 
        </listitem>
400
 
      </varlistentry>
401
 
      <varlistentry>
402
 
        <term><filename>/etc/mandos/pubkey.txt</filename></term>
403
 
        <listitem>
404
 
          <para>
405
 
            OpenPGP public key file which will be created or
406
 
            overwritten.
407
 
          </para>
408
 
        </listitem>
409
 
      </varlistentry>
410
 
      <varlistentry>
411
 
        <term><filename>/tmp</filename></term>
412
 
        <listitem>
413
 
          <para>
414
 
            Temporary files will be written here if
415
 
            <varname>TMPDIR</varname> is not set.
416
 
          </para>
417
 
        </listitem>
418
 
      </varlistentry>
419
 
    </variablelist>
420
 
  </refsect1>
421
 
  
422
 
<!--   <refsect1 id="bugs"> -->
423
 
<!--     <title>BUGS</title> -->
424
 
<!--     <para> -->
425
 
<!--     </para> -->
426
 
<!--   </refsect1> -->
427
 
  
428
 
  <refsect1 id="example">
429
 
    <title>EXAMPLE</title>
430
 
    <informalexample>
431
 
      <para>
432
 
        Normal invocation needs no options:
433
 
      </para>
434
 
      <para>
435
 
        <userinput>&COMMANDNAME;</userinput>
436
 
      </para>
437
 
    </informalexample>
438
 
    <informalexample>
439
 
      <para>
440
 
        Create key in another directory and of another type.  Force
441
 
        overwriting old key files:
442
 
      </para>
443
 
      <para>
444
 
 
445
 
<!-- do not wrap this line -->
446
 
<userinput>&COMMANDNAME; --dir ~/keydir --type RSA --force</userinput>
447
 
 
448
 
      </para>
449
 
    </informalexample>
450
 
    <informalexample>
451
 
      <para>
452
 
        Prompt for a password, encrypt it with the key in
453
 
        <filename>/etc/mandos</filename> and output a section suitable
454
 
        for <filename>clients.conf</filename>.
455
 
      </para>
456
 
      <para>
457
 
        <userinput>&COMMANDNAME; --password</userinput>
458
 
      </para>
459
 
    </informalexample>
460
 
    <informalexample>
461
 
      <para>
462
 
        Prompt for a password, encrypt it with the key in the
463
 
        <filename>client-key</filename> directory and output a section
464
 
        suitable for <filename>clients.conf</filename>.
465
 
      </para>
466
 
      <para>
467
 
 
468
 
<!-- do not wrap this line -->
469
 
<userinput>&COMMANDNAME; --password --dir client-key</userinput>
470
 
 
471
 
      </para>
472
 
    </informalexample>
473
 
  </refsect1>
474
 
  
475
 
  <refsect1 id="security">
476
 
    <title>SECURITY</title>
477
 
    <para>
478
 
      The <option>--type</option>, <option>--length</option>,
479
 
      <option>--subtype</option>, and <option>--sublength</option>
480
 
      options can be used to create keys of low security.  If in
481
 
      doubt, leave them to the default values.
482
 
    </para>
483
 
    <para>
484
 
      The key expire time is <emphasis>not</emphasis> guaranteed to be
485
 
      honored by <citerefentry><refentrytitle>mandos</refentrytitle>
486
 
      <manvolnum>8</manvolnum></citerefentry>.
487
 
    </para>
488
 
  </refsect1>
489
 
  
490
 
  <refsect1 id="see_also">
491
 
    <title>SEE ALSO</title>
492
 
    <para>
493
 
      <citerefentry><refentrytitle>gpg</refentrytitle>
494
 
      <manvolnum>1</manvolnum></citerefentry>,
495
 
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
496
 
      <manvolnum>5</manvolnum></citerefentry>,
497
 
      <citerefentry><refentrytitle>mandos</refentrytitle>
498
 
      <manvolnum>8</manvolnum></citerefentry>,
499
 
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
500
 
      <manvolnum>8mandos</manvolnum></citerefentry>
501
 
    </para>
502
 
  </refsect1>
503
 
  
504
 
</refentry>
505
 
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