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6 .TH "NMBLOOKUP" "1" "28 January 2003" "" ""
9 nmblookup \- NetBIOS over TCP/IP client used to lookup NetBIOS names
12 \fBnmblookup\fR [ \fB-M\fR ] [ \fB-R\fR ] [ \fB-S\fR ] [ \fB-r\fR ] [ \fB-A\fR ] [ \fB-h\fR ] [ \fB-B <broadcast address>\fR ] [ \fB-U <unicast address>\fR ] [ \fB-d <debug level>\fR ] [ \fB-s <smb config file>\fR ] [ \fB-i <NetBIOS scope>\fR ] [ \fB-T\fR ] [ \fB-f\fR ] \fBname\fR
16 This tool is part of the \fBSamba\fR(7) suite.
18 \fBnmblookup\fR is used to query NetBIOS names
19 and map them to IP addresses in a network using NetBIOS over TCP/IP
20 queries. The options allow the name queries to be directed at a
21 particular IP broadcast area or to a particular machine. All queries
26 Searches for a master browser by looking
27 up the NetBIOS name \fIname\fR with a
28 type of 0x1d. If \fI name\fR is "-" then it does a lookup on the special name
32 Set the recursion desired bit in the packet
33 to do a recursive lookup. This is used when sending a name
34 query to a machine running a WINS server and the user wishes
35 to query the names in the WINS server. If this bit is unset
36 the normal (broadcast responding) NetBIOS processing code
37 on a machine is used instead. See RFC1001, RFC1002 for details.
40 Once the name query has returned an IP
41 address then do a node status query as well. A node status
42 query returns the NetBIOS names registered by a host.
45 Try and bind to UDP port 137 to send and receive UDP
46 datagrams. The reason for this option is a bug in Windows 95
47 where it ignores the source port of the requesting packet
48 and only replies to UDP port 137. Unfortunately, on most UNIX
49 systems root privilege is needed to bind to this port, and
50 in addition, if the \fBnmbd\fR(8) daemon is running on this machine it also binds to this port.
53 Interpret \fIname\fR as
54 an IP Address and do a node status query on this address.
57 Print a help (usage) message.
59 \fB-B <broadcast address>\fR
60 Send the query to the given broadcast address. Without
61 this option the default behavior of nmblookup is to send the
62 query to the broadcast address of the network interfaces as
63 either auto-detected or defined in the \fIinterfaces\fR
64 parameter of the \fBsmb.conf\fR(5) file.
66 \fB-U <unicast address>\fR
67 Do a unicast query to the specified address or
68 host \fIunicast address\fR. This option
69 (along with the \fI-R\fR option) is needed to
73 debuglevel is an integer from 0 to 10.
75 The default value if this parameter is not specified
78 The higher this value, the more detail will be logged
79 about the activities of \fBnmblookup\fR. At level
80 0, only critical errors and serious warnings will be logged.
82 Levels above 1 will generate considerable amounts of
83 log data, and should only be used when investigating a problem.
84 Levels above 3 are designed for use only by developers and
85 generate HUGE amounts of data, most of which is extremely cryptic.
87 Note that specifying this parameter here will override
88 the \fI log level\fR parameter in the \fI smb.conf(5)\fR file.
91 This parameter specifies the pathname to
92 the Samba configuration file, smb.conf(5) This file controls all aspects of
93 the Samba setup on the machine.
96 This specifies a NetBIOS scope that
97 \fBnmblookup\fR will use to communicate with when
98 generating NetBIOS names. For details on the use of NetBIOS
99 scopes, see rfc1001.txt and rfc1002.txt. NetBIOS scopes are
100 \fBvery\fR rarely used, only set this parameter
101 if you are the system administrator in charge of all the
102 NetBIOS systems you communicate with.
105 This causes any IP addresses found in the
106 lookup to be looked up via a reverse DNS lookup into a
107 DNS name, and printed out before each
109 \fBIP address .... NetBIOS name\fR
111 pair that is the normal output.
114 Show which flags apply to the name that has been looked up. Possible
115 answers are zero or more of: Response, Authoritative,
116 Truncated, Recursion_Desired, Recursion_Available, Broadcast.
119 This is the NetBIOS name being queried. Depending
120 upon the previous options this may be a NetBIOS name or IP address.
121 If a NetBIOS name then the different name types may be specified
122 by appending '#<type>' to the name. This name may also be
123 \&'*', which will return all registered names within a broadcast
127 \fBnmblookup\fR can be used to query
128 a WINS server (in the same way \fBnslookup\fR is
129 used to query DNS servers). To query a WINS server, \fBnmblookup\fR
130 must be called like this:
132 \fBnmblookup -U server -R 'name'\fR
134 For example, running :
136 \fBnmblookup -U samba.org -R 'IRIX#1B'\fR
138 would query the WINS server samba.org for the domain
139 master browser (1B name type) for the IRIX workgroup.
142 This man page is correct for version 3.0 of
146 \fBnmbd\fR(8), \fBsamba\fR(7), and \fBsmb.conf\fR(5).
149 The original Samba software and related utilities
150 were created by Andrew Tridgell. Samba is now developed
151 by the Samba Team as an Open Source project similar
152 to the way the Linux kernel is developed.
154 The original Samba man pages were written by Karl Auer.
155 The man page sources were converted to YODL format (another
156 excellent piece of Open Source software, available at ftp://ftp.icce.rug.nl/pub/unix/ <URL:ftp://ftp.icce.rug.nl/pub/unix/>) and updated for the Samba 2.0
157 release by Jeremy Allison. The conversion to DocBook for
158 Samba 2.2 was done by Gerald Carter. The conversion to DocBook
159 XML 4.2 for Samba 3.0 was done by Alexander Bokovoy.