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>
8 <refmiscinfo class="source">Samba</refmiscinfo>
9 <refmiscinfo class="manual">User Commands</refmiscinfo>
10 <refmiscinfo class="version">4.7</refmiscinfo>
15 <refname>nmblookup</refname>
16 <refpurpose>NetBIOS over TCP/IP client used to lookup NetBIOS
22 <command>nmblookup</command>
23 <arg choice="opt">-M|--master-browser</arg>
24 <arg choice="opt">-R|--recursion</arg>
25 <arg choice="opt">-S|--status</arg>
26 <arg choice="opt">-r|--root-port</arg>
27 <arg choice="opt">-A|--lookup-by-ip</arg>
28 <arg choice="opt">-B|--broadcast <broadcast address></arg>
29 <arg choice="opt">-U|--unicast <unicast address></arg>
30 <arg choice="opt">-d <debug level></arg>
31 <arg choice="opt">-s <smb config file></arg>
32 <arg choice="opt">-i <NetBIOS scope></arg>
33 <arg choice="opt">-T|--translate</arg>
34 <arg choice="opt">-f|--flags</arg>
35 <arg choice="req">name</arg>
40 <title>DESCRIPTION</title>
42 <para>This tool is part of the <citerefentry><refentrytitle>samba</refentrytitle>
43 <manvolnum>7</manvolnum></citerefentry> suite.</para>
45 <para><command>nmblookup</command> is used to query NetBIOS names
46 and map them to IP addresses in a network using NetBIOS over TCP/IP
47 queries. The options allow the name queries to be directed at a
48 particular IP broadcast area or to a particular machine. All queries
49 are done over UDP.</para>
53 <title>OPTIONS</title>
57 <term>-M|--master-browser</term>
58 <listitem><para>Searches for a master browser by looking
59 up the NetBIOS <replaceable>name</replaceable> with a
60 type of <constant>0x1d</constant>. If <replaceable>
61 name</replaceable> is "-" then it does a lookup on the special name
62 <constant>__MSBROWSE__</constant>. Please note that in order to
63 use the name "-", you need to make sure "-" isn't parsed as an
65 <userinput>nmblookup -M -- -</userinput>.</para></listitem>
69 <term>-R|--recursion</term>
70 <listitem><para>Set the recursion desired bit in the packet
71 to do a recursive lookup. This is used when sending a name
72 query to a machine running a WINS server and the user wishes
73 to query the names in the WINS server. If this bit is unset
74 the normal (broadcast responding) NetBIOS processing code
75 on a machine is used instead. See RFC1001, RFC1002 for details.
80 <term>-S|--status</term>
81 <listitem><para>Once the name query has returned an IP
82 address then do a node status query as well. A node status
83 query returns the NetBIOS names registered by a host.
89 <term>-r|--root-port</term>
90 <listitem><para>Try and bind to UDP port 137 to send and receive UDP
91 datagrams. The reason for this option is a bug in Windows 95
92 where it ignores the source port of the requesting packet
93 and only replies to UDP port 137. Unfortunately, on most UNIX
94 systems root privilege is needed to bind to this port, and
95 in addition, if the <citerefentry><refentrytitle>nmbd</refentrytitle>
96 <manvolnum>8</manvolnum></citerefentry> daemon is running on this machine it also binds to this port.
102 <term>-A|--lookup-by-ip</term>
103 <listitem><para>Interpret <replaceable>name</replaceable> as
104 an IP Address and do a node status query on this address.</para>
110 &popt.common.connection;
114 <term>-B|--broadcast <broadcast address></term>
115 <listitem><para>Send the query to the given broadcast address. Without
116 this option the default behavior of nmblookup is to send the
117 query to the broadcast address of the network interfaces as
118 either auto-detected or defined in the <ulink
119 url="smb.conf.5.html#INTERFACES"><parameter>interfaces</parameter>
120 </ulink> parameter of the <citerefentry><refentrytitle>smb.conf</refentrytitle>
121 <manvolnum>5</manvolnum></citerefentry> file.
128 <term>-U|--unicast <unicast address></term>
129 <listitem><para>Do a unicast query to the specified address or
130 host <replaceable>unicast address</replaceable>. This option
131 (along with the <parameter>-R</parameter> option) is needed to
132 query a WINS server.</para></listitem>
135 &stdarg.server.debug;
139 <term>-T|--translate</term>
140 <listitem><para>This causes any IP addresses found in the
141 lookup to be looked up via a reverse DNS lookup into a
142 DNS name, and printed out before each</para>
144 <para><emphasis>IP address .... NetBIOS name</emphasis></para>
146 <para> pair that is the normal output.</para></listitem>
150 <term>-f|--flags</term>
152 Show which flags apply to the name that has been looked up. Possible
153 answers are zero or more of: Response, Authoritative,
154 Truncated, Recursion_Desired, Recursion_Available, Broadcast.
161 <listitem><para>This is the NetBIOS name being queried. Depending
162 upon the previous options this may be a NetBIOS name or IP address.
163 If a NetBIOS name then the different name types may be specified
164 by appending '#<type>' to the name. This name may also be
165 '*', which will return all registered names within a broadcast
166 area.</para></listitem>
173 <title>EXAMPLES</title>
175 <para><command>nmblookup</command> can be used to query
176 a WINS server (in the same way <command>nslookup</command> is
177 used to query DNS servers). To query a WINS server, <command>nmblookup</command>
178 must be called like this:</para>
180 <para><command>nmblookup -U server -R 'name'</command></para>
182 <para>For example, running :</para>
184 <para><command>nmblookup -U samba.org -R 'IRIX#1B'</command></para>
186 <para>would query the WINS server samba.org for the domain
187 master browser (1B name type) for the IRIX workgroup.</para>
191 <title>VERSION</title>
193 <para>This man page is correct for version 3 of
194 the Samba suite.</para>
198 <title>SEE ALSO</title>
199 <para><citerefentry><refentrytitle>nmbd</refentrytitle>
200 <manvolnum>8</manvolnum></citerefentry>, <citerefentry><refentrytitle>samba</refentrytitle>
201 <manvolnum>7</manvolnum></citerefentry>, and <citerefentry><refentrytitle>smb.conf</refentrytitle>
202 <manvolnum>5</manvolnum></citerefentry>.</para>
206 <title>AUTHOR</title>
208 <para>The original Samba software and related utilities
209 were created by Andrew Tridgell. Samba is now developed
210 by the Samba Team as an Open Source project similar
211 to the way the Linux kernel is developed.</para>
213 <para>The original Samba man pages were written by Karl Auer.
214 The man page sources were converted to YODL format (another
215 excellent piece of Open Source software, available at <ulink url="ftp://ftp.icce.rug.nl/pub/unix/">
216 ftp://ftp.icce.rug.nl/pub/unix/</ulink>) and updated for the Samba 2.0
217 release by Jeremy Allison. The conversion to DocBook for
218 Samba 2.2 was done by Gerald Carter. The conversion to DocBook
219 XML 4.2 for Samba 3.0 was done by Alexander Bokovoy.</para>