1 <?xml version="1.0" encoding="iso-8859-1"?>
2 <!DOCTYPE refentry PUBLIC "-//Samba-Team//DTD DocBook V4.2-Based Variant V1.0//EN" "http://www.samba.org/samba/DTD/samba-doc">
3 <refentry id="nmblookup">
6 <refentrytitle>nmblookup</refentrytitle>
7 <manvolnum>1</manvolnum>
12 <refname>nmblookup</refname>
13 <refpurpose>NetBIOS over TCP/IP client used to lookup NetBIOS
19 <command>nmblookup</command>
20 <arg choice="opt">-M</arg>
21 <arg choice="opt">-R</arg>
22 <arg choice="opt">-S</arg>
23 <arg choice="opt">-r</arg>
24 <arg choice="opt">-A</arg>
25 <arg choice="opt">-h</arg>
26 <arg choice="opt">-B <broadcast address></arg>
27 <arg choice="opt">-U <unicast address></arg>
28 <arg choice="opt">-d <debug level></arg>
29 <arg choice="opt">-s <smb config file></arg>
30 <arg choice="opt">-i <NetBIOS scope></arg>
31 <arg choice="opt">-T</arg>
32 <arg choice="opt">-f</arg>
33 <arg choice="req">name</arg>
38 <title>DESCRIPTION</title>
40 <para>This tool is part of the <citerefentry><refentrytitle>samba</refentrytitle>
41 <manvolnum>7</manvolnum></citerefentry> suite.</para>
43 <para><command>nmblookup</command> is used to query NetBIOS names
44 and map them to IP addresses in a network using NetBIOS over TCP/IP
45 queries. The options allow the name queries to be directed at a
46 particular IP broadcast area or to a particular machine. All queries
47 are done over UDP.</para>
51 <title>OPTIONS</title>
56 <listitem><para>Searches for a master browser by looking
57 up the NetBIOS name <replaceable>name</replaceable> with a
58 type of <constant>0x1d</constant>. If <replaceable>
59 name</replaceable> is "-" then it does a lookup on the special name
60 <constant>__MSBROWSE__</constant>. Please note that in order to
61 use the name "-", you need to make sure "-" isn't parsed as an
63 <userinput>nmblookup -M -- -</userinput>.</para></listitem>
68 <listitem><para>Set the recursion desired bit in the packet
69 to do a recursive lookup. This is used when sending a name
70 query to a machine running a WINS server and the user wishes
71 to query the names in the WINS server. If this bit is unset
72 the normal (broadcast responding) NetBIOS processing code
73 on a machine is used instead. See RFC1001, RFC1002 for details.
79 <listitem><para>Once the name query has returned an IP
80 address then do a node status query as well. A node status
81 query returns the NetBIOS names registered by a host.
88 <listitem><para>Try and bind to UDP port 137 to send and receive UDP
89 datagrams. The reason for this option is a bug in Windows 95
90 where it ignores the source port of the requesting packet
91 and only replies to UDP port 137. Unfortunately, on most UNIX
92 systems root privilege is needed to bind to this port, and
93 in addition, if the <citerefentry><refentrytitle>nmbd</refentrytitle>
94 <manvolnum>8</manvolnum></citerefentry> daemon is running on this machine it also binds to this port.
101 <listitem><para>Interpret <replaceable>name</replaceable> as
102 an IP Address and do a node status query on this address.</para>
108 &popt.common.connection;
112 <term>-B <broadcast address></term>
113 <listitem><para>Send the query to the given broadcast address. Without
114 this option the default behavior of nmblookup is to send the
115 query to the broadcast address of the network interfaces as
116 either auto-detected or defined in the <ulink
117 url="smb.conf.5.html#INTERFACES"><parameter>interfaces</parameter>
118 </ulink> parameter of the <citerefentry><refentrytitle>smb.conf</refentrytitle>
119 <manvolnum>5</manvolnum></citerefentry> file.
126 <term>-U <unicast address></term>
127 <listitem><para>Do a unicast query to the specified address or
128 host <replaceable>unicast address</replaceable>. This option
129 (along with the <parameter>-R</parameter> option) is needed to
130 query a WINS server.</para></listitem>
133 &stdarg.server.debug;
138 <listitem><para>This causes any IP addresses found in the
139 lookup to be looked up via a reverse DNS lookup into a
140 DNS name, and printed out before each</para>
142 <para><emphasis>IP address .... NetBIOS name</emphasis></para>
144 <para> pair that is the normal output.</para></listitem>
150 Show which flags apply to the name that has been looked up. Possible
151 answers are zero or more of: Response, Authoritative,
152 Truncated, Recursion_Desired, Recursion_Available, Broadcast.
159 <listitem><para>This is the NetBIOS name being queried. Depending
160 upon the previous options this may be a NetBIOS name or IP address.
161 If a NetBIOS name then the different name types may be specified
162 by appending '#<type>' to the name. This name may also be
163 '*', which will return all registered names within a broadcast
164 area.</para></listitem>
171 <title>EXAMPLES</title>
173 <para><command>nmblookup</command> can be used to query
174 a WINS server (in the same way <command>nslookup</command> is
175 used to query DNS servers). To query a WINS server, <command>nmblookup</command>
176 must be called like this:</para>
178 <para><command>nmblookup -U server -R 'name'</command></para>
180 <para>For example, running :</para>
182 <para><command>nmblookup -U samba.org -R 'IRIX#1B'</command></para>
184 <para>would query the WINS server samba.org for the domain
185 master browser (1B name type) for the IRIX workgroup.</para>
189 <title>VERSION</title>
191 <para>This man page is correct for version 3.0 of
192 the Samba suite.</para>
196 <title>SEE ALSO</title>
197 <para><citerefentry><refentrytitle>nmbd</refentrytitle>
198 <manvolnum>8</manvolnum></citerefentry>, <citerefentry><refentrytitle>samba</refentrytitle>
199 <manvolnum>7</manvolnum></citerefentry>, and <citerefentry><refentrytitle>smb.conf</refentrytitle>
200 <manvolnum>5</manvolnum></citerefentry>.</para>
204 <title>AUTHOR</title>
206 <para>The original Samba software and related utilities
207 were created by Andrew Tridgell. Samba is now developed
208 by the Samba Team as an Open Source project similar
209 to the way the Linux kernel is developed.</para>
211 <para>The original Samba man pages were written by Karl Auer.
212 The man page sources were converted to YODL format (another
213 excellent piece of Open Source software, available at <ulink url="ftp://ftp.icce.rug.nl/pub/unix/">
214 ftp://ftp.icce.rug.nl/pub/unix/</ulink>) and updated for the Samba 2.0
215 release by Jeremy Allison. The conversion to DocBook for
216 Samba 2.2 was done by Gerald Carter. The conversion to DocBook
217 XML 4.2 for Samba 3.0 was done by Alexander Bokovoy.</para>