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
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<HTML
><HEAD
><TITLE
>Analysing and solving samba problems</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK
REL="HOME"
TITLE="SAMBA Project Documentation"
HREF="samba-howto-collection.html"><LINK
REL="UP"
TITLE="Appendixes"
HREF="appendixes.html"><LINK
REL="PREVIOUS"
TITLE="The samba checklist"
HREF="diagnosis.html"><LINK
REL="NEXT"
TITLE="Reporting Bugs"
HREF="bugreport.html"></HEAD
><BODY
CLASS="CHAPTER"
BGCOLOR="#FFFFFF"
TEXT="#000000"
LINK="#0000FF"
VLINK="#840084"
ALINK="#0000FF"
><DIV
CLASS="NAVHEADER"
><TABLE
SUMMARY="Header navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="3"
ALIGN="center"
>SAMBA Project Documentation</TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="bottom"
><A
HREF="diagnosis.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="80%"
ALIGN="center"
VALIGN="bottom"
></TD
><TD
WIDTH="10%"
ALIGN="right"
VALIGN="bottom"
><A
HREF="bugreport.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="CHAPTER"
><H1
><A
NAME="PROBLEMS"
></A
>Chapter 34. Analysing and solving samba problems</H1
><DIV
CLASS="TOC"
><DL
><DT
><B
>Table of Contents</B
></DT
><DT
>34.1. <A
HREF="problems.html#AEN5004"
>Diagnostics tools</A
></DT
><DT
>34.2. <A
HREF="problems.html#AEN5019"
>Installing 'Network Monitor' on an NT Workstation or a Windows 9x box</A
></DT
><DT
>34.3. <A
HREF="problems.html#AEN5048"
>Useful URL's</A
></DT
><DT
>34.4. <A
HREF="problems.html#AEN5072"
>Getting help from the mailing lists</A
></DT
><DT
>34.5. <A
HREF="problems.html#AEN5102"
>How to get off the mailinglists</A
></DT
></DL
></DIV
><P
>There are many sources of information available in the form
of mailing lists, RFC's and documentation. The docs that come
with the samba distribution contain very good explanations of
general SMB topics such as browsing.</P
><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="AEN5004"
>34.1. Diagnostics tools</A
></H1
><P
>One of the best diagnostic tools for debugging problems is Samba itself.
You can use the -d option for both smbd and nmbd to specify what
'debug level' at which to run. See the man pages on smbd, nmbd and
smb.conf for more information on debugging options. The debug
level can range from 1 (the default) to 10 (100 for debugging passwords).</P
><P
>Another helpful method of debugging is to compile samba using the
<B
CLASS="COMMAND"
>gcc -g </B
> flag. This will include debug
information in the binaries and allow you to attach gdb to the
running smbd / nmbd process. In order to attach gdb to an smbd
process for an NT workstation, first get the workstation to make the
connection. Pressing ctrl-alt-delete and going down to the domain box
is sufficient (at least, on the first time you join the domain) to
generate a 'LsaEnumTrustedDomains'. Thereafter, the workstation
maintains an open connection, and therefore there will be an smbd
process running (assuming that you haven't set a really short smbd
idle timeout) So, in between pressing ctrl alt delete, and actually
typing in your password, you can gdb attach and continue.</P
><P
>Some useful samba commands worth investigating:</P
><P
></P
><UL
><LI
><P
>testparam | more</P
></LI
><LI
><P
>smbclient -L //{netbios name of server}</P
></LI
></UL
><P
>An SMB enabled version of tcpdump is available from
<A
HREF="http://www.tcpdump.org/"
TARGET="_top"
>http://www.tcpdup.org/</A
>.
Ethereal, another good packet sniffer for Unix and Win32
hosts, can be downloaded from <A
HREF="http://www.ethereal.com/"
TARGET="_top"
>http://www.ethereal.com</A
>.</P
><P
>For tracing things on the Microsoft Windows NT, Network Monitor
(aka. netmon) is available on the Microsoft Developer Network CD's,
the Windows NT Server install CD and the SMS CD's. The version of
netmon that ships with SMS allows for dumping packets between any two
computers (i.e. placing the network interface in promiscuous mode).
The version on the NT Server install CD will only allow monitoring
of network traffic directed to the local NT box and broadcasts on the
local subnet. Be aware that Ethereal can read and write netmon
formatted files.</P
></DIV
><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="AEN5019"
>34.2. Installing 'Network Monitor' on an NT Workstation or a Windows 9x box</A
></H1
><P
>Installing netmon on an NT workstation requires a couple
of steps. The following are for installing Netmon V4.00.349, which comes
with Microsoft Windows NT Server 4.0, on Microsoft Windows NT
Workstation 4.0. The process should be similar for other version of
Windows NT / Netmon. You will need both the Microsoft Windows
NT Server 4.0 Install CD and the Workstation 4.0 Install CD.</P
><P
>Initially you will need to install 'Network Monitor Tools and Agent'
on the NT Server. To do this </P
><P
></P
><UL
><LI
><P
>Goto Start - Settings - Control Panel -
Network - Services - Add </P
></LI
><LI
><P
>Select the 'Network Monitor Tools and Agent' and
click on 'OK'.</P
></LI
><LI
><P
>Click 'OK' on the Network Control Panel.
</P
></LI
><LI
><P
>Insert the Windows NT Server 4.0 install CD
when prompted.</P
></LI
></UL
><P
>At this point the Netmon files should exist in
<TT
CLASS="FILENAME"
>%SYSTEMROOT%\System32\netmon\*.*</TT
>.
Two subdirectories exist as well, <TT
CLASS="FILENAME"
>parsers\</TT
>
which contains the necessary DLL's for parsing the netmon packet
dump, and <TT
CLASS="FILENAME"
>captures\</TT
>.</P
><P
>In order to install the Netmon tools on an NT Workstation, you will
first need to install the 'Network Monitor Agent' from the Workstation
install CD.</P
><P
></P
><UL
><LI
><P
>Goto Start - Settings - Control Panel -
Network - Services - Add</P
></LI
><LI
><P
>Select the 'Network Monitor Agent' and click
on 'OK'.</P
></LI
><LI
><P
>Click 'OK' on the Network Control Panel.
</P
></LI
><LI
><P
>Insert the Windows NT Workstation 4.0 install
CD when prompted.</P
></LI
></UL
><P
>Now copy the files from the NT Server in %SYSTEMROOT%\System32\netmon\*.*
to %SYSTEMROOT%\System32\netmon\*.* on the Workstation and set
permissions as you deem appropriate for your site. You will need
administrative rights on the NT box to run netmon.</P
><P
>To install Netmon on a Windows 9x box install the network monitor agent
from the Windows 9x CD (\admin\nettools\netmon). There is a readme
file located with the netmon driver files on the CD if you need
information on how to do this. Copy the files from a working
Netmon installation.</P
></DIV
><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="AEN5048"
>34.3. Useful URL's</A
></H1
><P
></P
><UL
><LI
><P
>Home of Samba site <A
HREF="http://samba.org"
TARGET="_top"
> http://samba.org</A
>. We have a mirror near you !</P
></LI
><LI
><P
> The <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Development</I
></SPAN
> document
on the Samba mirrors might mention your problem. If so,
it might mean that the developers are working on it.</P
></LI
><LI
><P
>See how Scott Merrill simulates a BDC behavior at
<A
HREF="http://www.skippy.net/linux/smb-howto.html"
TARGET="_top"
> http://www.skippy.net/linux/smb-howto.html</A
>. </P
></LI
><LI
><P
>Although 2.0.7 has almost had its day as a PDC, David Bannon will
keep the 2.0.7 PDC pages at <A
HREF="http://bioserve.latrobe.edu.au/samba"
TARGET="_top"
> http://bioserve.latrobe.edu.au/samba</A
> going for a while yet.</P
></LI
><LI
><P
>Misc links to CIFS information
<A
HREF="http://samba.org/cifs/"
TARGET="_top"
>http://samba.org/cifs/</A
></P
></LI
><LI
><P
>NT Domains for Unix <A
HREF="http://mailhost.cb1.com/~lkcl/ntdom/"
TARGET="_top"
> http://mailhost.cb1.com/~lkcl/ntdom/</A
></P
></LI
><LI
><P
>FTP site for older SMB specs:
<A
HREF="ftp://ftp.microsoft.com/developr/drg/CIFS/"
TARGET="_top"
> ftp://ftp.microsoft.com/developr/drg/CIFS/</A
></P
></LI
></UL
></DIV
><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="AEN5072"
>34.4. Getting help from the mailing lists</A
></H1
><P
>There are a number of Samba related mailing lists. Go to <A
HREF="http://samba.org"
TARGET="_top"
>http://samba.org</A
>, click on your nearest mirror
and then click on <B
CLASS="COMMAND"
>Support</B
> and then click on <B
CLASS="COMMAND"
>Samba related mailing lists</B
>.</P
><P
>For questions relating to Samba TNG go to
<A
HREF="http://www.samba-tng.org/"
TARGET="_top"
>http://www.samba-tng.org/</A
>
It has been requested that you don't post questions about Samba-TNG to the
main stream Samba lists.</P
><P
>If you post a message to one of the lists please observe the following guide lines :</P
><P
></P
><UL
><LI
><P
> Always remember that the developers are volunteers, they are
not paid and they never guarantee to produce a particular feature at
a particular time. Any time lines are 'best guess' and nothing more.</P
></LI
><LI
><P
> Always mention what version of samba you are using and what
operating system its running under. You should probably list the
relevant sections of your <TT
CLASS="FILENAME"
>smb.conf</TT
> file, at least the options
in [global] that affect PDC support.</P
></LI
><LI
><P
>In addition to the version, if you obtained Samba via
CVS mention the date when you last checked it out.</P
></LI
><LI
><P
> Try and make your question clear and brief, lots of long,
convoluted questions get deleted before they are completely read !
Don't post html encoded messages (if you can select colour or font
size its html).</P
></LI
><LI
><P
> If you run one of those nifty 'I'm on holidays' things when
you are away, make sure its configured to not answer mailing lists.</P
></LI
><LI
><P
> Don't cross post. Work out which is the best list to post to
and see what happens, i.e. don't post to both samba-ntdom and samba-technical.
Many people active on the lists subscribe to more
than one list and get annoyed to see the same message two or more times.
Often someone will see a message and thinking it would be better dealt
with on another, will forward it on for you.</P
></LI
><LI
><P
>You might include <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>partial</I
></SPAN
>
log files written at a debug level set to as much as 20.
Please don't send the entire log but enough to give the context of the
error messages.</P
></LI
><LI
><P
>(Possibly) If you have a complete netmon trace ( from the opening of
the pipe to the error ) you can send the *.CAP file as well.</P
></LI
><LI
><P
>Please think carefully before attaching a document to an email.
Consider pasting the relevant parts into the body of the message. The samba
mailing lists go to a huge number of people, do they all need a copy of your
smb.conf in their attach directory?</P
></LI
></UL
></DIV
><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="AEN5102"
>34.5. How to get off the mailinglists</A
></H1
><P
>To have your name removed from a samba mailing list, go to the
same place you went to to get on it. Go to <A
HREF="http://lists.samba.org/"
TARGET="_top"
>http://lists.samba.org</A
>,
click on your nearest mirror and then click on <B
CLASS="COMMAND"
>Support</B
> and
then click on <B
CLASS="COMMAND"
> Samba related mailing lists</B
>. Or perhaps see
<A
HREF="http://lists.samba.org/mailman/roster/samba-ntdom"
TARGET="_top"
>here</A
></P
><P
>Please don't post messages to the list asking to be removed, you will just
be referred to the above address (unless that process failed in some way...)</P
></DIV
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
SUMMARY="Footer navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="diagnosis.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="samba-howto-collection.html"
ACCESSKEY="H"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="bugreport.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>The samba checklist</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="appendixes.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>Reporting Bugs</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>
|
