summaryrefslogtreecommitdiff
path: root/docs/htmldocs/nmbd.8.html
blob: 1183a14522a950807ff54eb785d32b1ea879a0f6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN">
<HTML
><HEAD
><TITLE
>nmbd</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
"></HEAD
><BODY
CLASS="REFENTRY"
BGCOLOR="#FFFFFF"
TEXT="#000000"
LINK="#0000FF"
VLINK="#840084"
ALINK="#0000FF"
><H1
><A
NAME="NMBD">nmbd</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN5"
></A
><H2
>Name</H2
>nmbd&nbsp;--&nbsp;NetBIOS name server to provide NetBIOS 
	over IP naming services to clients</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN8"><H2
>Synopsis</H2
><P
><B
CLASS="COMMAND"
>nmbd</B
> [-D] [-F] [-S] [-a] [-i] [-o] [-h] [-V] [-d &#60;debug level&#62;] [-H &#60;lmhosts file&#62;] [-l &#60;log directory&#62;] [-n &#60;primary netbios name&#62;] [-p &#60;port number&#62;] [-s &#60;configuration file&#62;]</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN25"
></A
><H2
>DESCRIPTION</H2
><P
>This program is part of the Samba suite.</P
><P
><B
CLASS="COMMAND"
>nmbd</B
> is a server that understands 
	and can reply to NetBIOS over IP name service requests, like 
	those produced by SMB/CIFS clients such as Windows 95/98/ME, 
	Windows NT, Windows 2000, Windows XP and LanManager clients. It also
	participates in the browsing protocols which make up the 
	Windows "Network Neighborhood" view.</P
><P
>SMB/CIFS clients, when they start up, may wish to 
	locate an SMB/CIFS server. That is, they wish to know what 
	IP number a specified host is using.</P
><P
>Amongst other services, <B
CLASS="COMMAND"
>nmbd</B
> will 
	listen for such requests, and if its own NetBIOS name is 
	specified it will respond with the IP number of the host it 
	is running on.  Its "own NetBIOS name" is by
	default the primary DNS name of the host it is running on, 
	but this can be overridden with the <I
CLASS="EMPHASIS"
>-n</I
> 
	option (see OPTIONS below). Thus <B
CLASS="COMMAND"
>nmbd</B
> will 
	reply to broadcast queries for its own name(s). Additional
	names for <B
CLASS="COMMAND"
>nmbd</B
> to respond on can be set 
	via parameters in the <A
HREF="smb.conf.5.html"
TARGET="_top"
><TT
CLASS="FILENAME"
>	smb.conf(5)</TT
></A
> configuration file.</P
><P
><B
CLASS="COMMAND"
>nmbd</B
> can also be used as a WINS 
	(Windows Internet Name Server) server. What this basically means 
	is that it will act as a WINS database server, creating a 
	database from name registration requests that it receives and 
	replying to queries from clients for these names.</P
><P
>In addition, <B
CLASS="COMMAND"
>nmbd</B
> can act as a WINS 
	proxy, relaying broadcast queries from clients that do 
	not understand how to talk the WINS protocol to a WINS 
	server.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN42"
></A
><H2
>OPTIONS</H2
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
>-D</DT
><DD
><P
>If specified, this parameter causes 
		<B
CLASS="COMMAND"
>nmbd</B
> to operate as a daemon. That is, 
		it detaches itself and runs in the background, fielding 
		requests on the appropriate port. By default, <B
CLASS="COMMAND"
>nmbd</B
> 
		will operate as a daemon if launched from a command shell. 
		nmbd can also be operated from the <B
CLASS="COMMAND"
>inetd</B
> 
		meta-daemon, although this is not recommended.
		</P
></DD
><DT
>-F</DT
><DD
><P
>If specified, this parameter causes
		the main <B
CLASS="COMMAND"
>nmbd</B
> process to not daemonize,
		i.e. double-fork and disassociate with the terminal.
		Child processes are still created as normal to service
		each connection request, but the main process does not
		exit. This operation mode is suitable for running
		<B
CLASS="COMMAND"
>nmbd</B
> under process supervisors such
		as <B
CLASS="COMMAND"
>supervise</B
> and <B
CLASS="COMMAND"
>svscan</B
>
		from Daniel J. Bernstein's <B
CLASS="COMMAND"
>daemontools</B
>
		package, or the AIX process monitor.
		</P
></DD
><DT
>-S</DT
><DD
><P
>If specified, this parameter causes
		<B
CLASS="COMMAND"
>nmbd</B
> to log to standard output rather
		than a file.</P
></DD
><DT
>-a</DT
><DD
><P
>If this parameter is specified, each new 
		connection will append log messages to the log file.  
		This is the default.</P
></DD
><DT
>-i</DT
><DD
><P
>If this parameter is specified it causes the
		server to run "interactively", not as a daemon, even if the
		server is executed on the command line of a shell. Setting this
		parameter negates the implicit daemon mode when run from the
		command line. <B
CLASS="COMMAND"
>nmbd</B
> also logs to standard
		output, as if the <B
CLASS="COMMAND"
>-S</B
> parameter had been
		given. </P
></DD
><DT
>-o</DT
><DD
><P
>If this parameter is specified, the 
		log files will be overwritten when opened.  By default, 
		<B
CLASS="COMMAND"
>smbd</B
> will append entries to the log 
		files.</P
></DD
><DT
>-h</DT
><DD
><P
>Prints the help information (usage) 
		for <B
CLASS="COMMAND"
>nmbd</B
>.</P
></DD
><DT
>-H &#60;filename&#62;</DT
><DD
><P
>NetBIOS lmhosts file.  The lmhosts 
		file is a list of NetBIOS names to IP addresses that 
		is loaded by the nmbd server and used via the name 
		resolution mechanism <A
HREF="smb.conf.5.html#nameresolveorder"
TARGET="_top"
>		name resolve order</A
> described in <A
HREF="smb.conf.5.html"
TARGET="_top"
> <TT
CLASS="FILENAME"
>smb.conf(5)</TT
></A
>
		to resolve any NetBIOS name queries needed by the server. Note 
		that the contents of this file are <I
CLASS="EMPHASIS"
>NOT</I
> 
		used by <B
CLASS="COMMAND"
>nmbd</B
> to answer any name queries. 
		Adding a line to this file affects name NetBIOS resolution 
		from this host <I
CLASS="EMPHASIS"
>ONLY</I
>.</P
><P
>The default path to this file is compiled into 
		Samba as part of the build process. Common defaults 
		are <TT
CLASS="FILENAME"
>/usr/local/samba/lib/lmhosts</TT
>,
		<TT
CLASS="FILENAME"
>/usr/samba/lib/lmhosts</TT
> or
		<TT
CLASS="FILENAME"
>/etc/lmhosts</TT
>. See the
		<A
HREF="lmhosts.5.html"
TARGET="_top"
><TT
CLASS="FILENAME"
>lmhosts(5)</TT
></A
>
		man page for details on the contents of this file.</P
></DD
><DT
>-V</DT
><DD
><P
>Prints the version number for 
		<B
CLASS="COMMAND"
>nmbd</B
>.</P
></DD
><DT
>-d &#60;debug level&#62;</DT
><DD
><P
>debuglevel is an integer 
		from 0 to 10.  The default value if this parameter is 
		not specified is zero.</P
><P
>The higher this value, the more detail will 
		be logged to the log files about the activities of the 
		server. At level 0, only critical errors and serious 
		warnings will be logged. Level 1 is a reasonable level for
		day to day running - it generates a small amount of 
		information about operations carried out.</P
><P
>Levels above 1 will generate considerable amounts 
		of log data, and should only be used when investigating 
 		a problem. Levels above 3 are designed for use only by developers 
		and generate HUGE amounts of log data, most of which is extremely 
		cryptic.</P
><P
>Note that specifying this parameter here will override 
		the <A
HREF="smb.conf.5.html#loglevel"
TARGET="_top"
>log level</A
> 
		parameter in the <A
HREF="smb.conf.5.html"
TARGET="_top"
><TT
CLASS="FILENAME"
>		smb.conf(5)</TT
></A
> file.</P
></DD
><DT
>-l &#60;log directory&#62;</DT
><DD
><P
>The -l parameter specifies a directory 
		into which the "log.nmbd" log file will be created
		for operational data from the running <B
CLASS="COMMAND"
>nmbd</B
>
		server. The default log directory is compiled into Samba
		as part of the build process. Common defaults are <TT
CLASS="FILENAME"
>		/usr/local/samba/var/log.nmb</TT
>, <TT
CLASS="FILENAME"
>		/usr/samba/var/log.nmb</TT
> or
		<TT
CLASS="FILENAME"
>/var/log/log.nmb</TT
>.  <I
CLASS="EMPHASIS"
>Beware:</I
>
                If the directory specified does not exist, <B
CLASS="COMMAND"
>nmbd</B
>
                will log to the default debug log location defined at compile time.
		</P
></DD
><DT
>-n &#60;primary NetBIOS name&#62;</DT
><DD
><P
>This option allows you to override
		the NetBIOS name that Samba uses for itself. This is identical 
		to setting the <A
HREF="smb.conf.5.html#netbiosname"
TARGET="_top"
>		NetBIOS name</A
> parameter in the <A
HREF="smb.conf.5.html"
TARGET="_top"
>	
		<TT
CLASS="FILENAME"
>smb.conf</TT
></A
> file.  However, a command
		line setting will take precedence over settings in 
		<TT
CLASS="FILENAME"
>smb.conf</TT
>.</P
></DD
><DT
>-p &#60;UDP port number&#62;</DT
><DD
><P
>UDP port number is a positive integer value.
		This option changes the default UDP port number (normally 137)
		that <B
CLASS="COMMAND"
>nmbd</B
> responds to name queries on. Don't
		use this option unless you are an expert, in which case you
		won't need help!</P
></DD
><DT
>-s &#60;configuration file&#62;</DT
><DD
><P
>The default configuration file name
		is set at build time, typically as <TT
CLASS="FILENAME"
>		/usr/local/samba/lib/smb.conf</TT
>, but
		this may be changed when Samba is autoconfigured.</P
><P
>The file specified contains the configuration details
		required by the server. See <A
HREF="smb.conf.5.html"
TARGET="_top"
>		<TT
CLASS="FILENAME"
>smb.conf(5)</TT
></A
> for more information.
		</P
></DD
></DL
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN148"
></A
><H2
>FILES</H2
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
><TT
CLASS="FILENAME"
>/etc/inetd.conf</TT
></DT
><DD
><P
>If the server is to be run by the
		<B
CLASS="COMMAND"
>inetd</B
> meta-daemon, this file
		must contain suitable startup information for the
		meta-daemon. See the <A
HREF="UNIX_INSTALL.html"
TARGET="_top"
>UNIX_INSTALL.html</A
> document
		for details.
		</P
></DD
><DT
><TT
CLASS="FILENAME"
>/etc/rc</TT
></DT
><DD
><P
>or whatever initialization script your
		system uses).</P
><P
>If running the server as a daemon at startup,
		this file will need to contain an appropriate startup
		sequence for the server. See the <A
HREF="UNIX_INSTALL.html"
TARGET="_top"
>UNIX_INSTALL.html</A
> document
		for details.</P
></DD
><DT
><TT
CLASS="FILENAME"
>/etc/services</TT
></DT
><DD
><P
>If running the server via the
		meta-daemon <B
CLASS="COMMAND"
>inetd</B
>, this file
		must contain a mapping of service name (e.g., netbios-ssn)
		to service port (e.g., 139) and protocol type (e.g., tcp).
		See the <A
HREF="UNIX_INSTALL.html"
TARGET="_top"
>UNIX_INSTALL.html</A
>
		document for details.</P
></DD
><DT
><TT
CLASS="FILENAME"
>/usr/local/samba/lib/smb.conf</TT
></DT
><DD
><P
>This is the default location of the
		<A
HREF="smb.conf.5.html"
TARGET="_top"
><TT
CLASS="FILENAME"
>smb.conf</TT
></A
>
		server configuration file. Other common places that systems
		install this file are <TT
CLASS="FILENAME"
>/usr/samba/lib/smb.conf</TT
>
		and <TT
CLASS="FILENAME"
>/etc/smb.conf</TT
>.</P
><P
>When run as a WINS server (see the
		<A
HREF="smb.conf.5.html#WINSSUPPORT"
TARGET="_top"
>wins support</A
>
		parameter in the <TT
CLASS="FILENAME"
>smb.conf(5)</TT
> man page),
		<B
CLASS="COMMAND"
>nmbd</B
>
		will store the WINS database in the file <TT
CLASS="FILENAME"
>wins.dat</TT
>
		in the <TT
CLASS="FILENAME"
>var/locks</TT
> directory configured under
		wherever Samba was configured to install itself.</P
><P
>If <B
CLASS="COMMAND"
>nmbd</B
> is acting as a <I
CLASS="EMPHASIS"
>		browse master</I
> (see the <A
HREF="smb.conf.5.html#LOCALMASTER"
TARGET="_top"
>local master</A
>
		parameter in the <TT
CLASS="FILENAME"
>smb.conf(5)</TT
> man page,
		<B
CLASS="COMMAND"
>nmbd</B
>
		will store the browsing database in the file <TT
CLASS="FILENAME"
>browse.dat
		</TT
> in the <TT
CLASS="FILENAME"
>var/locks</TT
> directory
		configured under wherever Samba was configured to install itself.
		</P
></DD
></DL
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN195"
></A
><H2
>SIGNALS</H2
><P
>To shut down an <B
CLASS="COMMAND"
>nmbd</B
> process it is recommended
	that SIGKILL (-9) <I
CLASS="EMPHASIS"
>NOT</I
> be used, except as a last
	resort, as this may leave the name database in an inconsistent state.
	The correct way to terminate <B
CLASS="COMMAND"
>nmbd</B
> is to send it
	a SIGTERM (-15) signal and wait for it to die on its own.</P
><P
><B
CLASS="COMMAND"
>nmbd</B
> will accept SIGHUP, which will cause
	it to dump out its namelists into the file <TT
CLASS="FILENAME"
>namelist.debug
	</TT
> in the <TT
CLASS="FILENAME"
>/usr/local/samba/var/locks</TT
>
	directory (or the <TT
CLASS="FILENAME"
>var/locks</TT
> directory configured
	under wherever Samba was configured to install itself). This will also
	cause <B
CLASS="COMMAND"
>nmbd</B
> to dump out its server database in
	the <TT
CLASS="FILENAME"
>log.nmb</TT
> file.</P
><P
>The debug log level of nmbd may be raised or lowered using
	<A
HREF="smbcontrol.1.html"
TARGET="_top"
><B
CLASS="COMMAND"
>smbcontrol(1)</B
>
	</A
> (SIGUSR[1|2] signals are no longer used in Samba 2.2). This is
	to allow transient problems to be diagnosed, whilst still running
	at a normally low log level.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN211"
></A
><H2
>VERSION</H2
><P
>This man page is correct for version 3.0 of 
	the Samba suite.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN214"
></A
><H2
>SEE ALSO</H2
><P
><B
CLASS="COMMAND"
>inetd(8)</B
>, <A
HREF="smbd.8.html"
TARGET="_top"
><B
CLASS="COMMAND"
>smbd(8)</B
></A
>, 
	<A
HREF="smb.conf.5.html"
TARGET="_top"
><TT
CLASS="FILENAME"
>smb.conf(5)</TT
>
	</A
>, <A
HREF="smbclient.1.html"
TARGET="_top"
><B
CLASS="COMMAND"
>smbclient(1)
	</B
></A
>, <A
HREF="testparm.1.html"
TARGET="_top"
><B
CLASS="COMMAND"
>	testparm(1)</B
></A
>, <A
HREF="testprns.1.html"
TARGET="_top"
>	<B
CLASS="COMMAND"
>testprns(1)</B
></A
>, and the Internet RFC's
	<TT
CLASS="FILENAME"
>rfc1001.txt</TT
>, <TT
CLASS="FILENAME"
>rfc1002.txt</TT
>. 
	In addition the CIFS (formerly SMB) specification is available 
	as a link from the Web page <A
HREF="http://samba.org/cifs/"
TARGET="_top"
> 
	http://samba.org/cifs/</A
>.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN231"
></A
><H2
>AUTHOR</H2
><P
>The original Samba software and related utilities 
	were created by Andrew Tridgell. Samba is now developed
	by the Samba Team as an Open Source project similar 
	to the way the Linux kernel is developed.</P
><P
>The original Samba man pages were written by Karl Auer. 
	The man page sources were converted to YODL format (another 
	excellent piece of Open Source software, available at
	<A
HREF="ftp://ftp.icce.rug.nl/pub/unix/"
TARGET="_top"
>	ftp://ftp.icce.rug.nl/pub/unix/</A
>) and updated for the Samba 2.0 
	release by Jeremy Allison.  The conversion to DocBook for 
	Samba 2.2 was done by Gerald Carter</P
></DIV
></BODY
></HTML
>