docs/htmldocs/nmblookup.1.html

   1 <html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>nmblookup</title><link rel="stylesheet" href="samba.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.60.1"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" lang="en"><a name="nmblookup"></a><div class="titlepage"><div></div><div></div></div><div class="refnamediv"><h2>Name</h2><p>nmblookup &#8212; NetBIOS over TCP/IP client used to lookup NetBIOS
   2         names</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="cmdsynopsis"><p><tt class="command">nmblookup</tt>  [-M] [-R] [-S] [-r] [-A] [-h] [-B &lt;broadcast address&gt;] [-U &lt;unicast address&gt;] [-d &lt;debug level&gt;] [-s &lt;smb config file&gt;] [-i &lt;NetBIOS scope&gt;] [-T] [-f] {name}</p></div></div><div class="refsect1" lang="en"><h2>DESCRIPTION</h2><p>This tool is part of the <a href="Samba.7.html"><span class="citerefentry"><span class="refentrytitle">Samba</span>(7)</span></a> suite.</p><p><b class="command">nmblookup</b> is used to query NetBIOS names
   3         and map them to IP addresses in a network using NetBIOS over TCP/IP
   4         queries. The options allow the name queries to be directed at a
   5         particular IP broadcast area or to a particular machine. All queries
   6         are done over UDP.</p></div><div class="refsect1" lang="en"><h2>OPTIONS</h2><div class="variablelist"><dl><dt><span class="term">-M</span></dt><dd><p>Searches for a master browser by looking
   7                 up the  NetBIOS name <i class="replaceable"><tt>name</tt></i> with a
   8                 type of <tt class="constant">0x1d</tt>. If <i class="replaceable"><tt>
   9                 name</tt></i> is &quot;-&quot; then it does a lookup on the special name
  10                 <tt class="constant">__MSBROWSE__</tt>. Please note that in order to
  11                 use the name &quot;-&quot;, you need to make sure &quot;-&quot; isn't parsed as an
  12                 argument, e.g. use :
  13                 <b class="userinput"><tt>nmblookup -M -- -</tt></b>.</p></dd><dt><span class="term">-R</span></dt><dd><p>Set the recursion desired bit in the packet
  14                 to do a recursive lookup. This is used when sending a name
  15                 query to a machine running a WINS server and the user wishes
  16                 to query the names in the WINS server.  If this bit is unset
  17                 the normal (broadcast responding) NetBIOS processing code
  18                 on a machine is used instead. See RFC1001, RFC1002 for details.
  19                 </p></dd><dt><span class="term">-S</span></dt><dd><p>Once the name query has returned an IP
  20                 address then do a node status query as well. A node status
  21                 query returns the NetBIOS names registered by a host.
  22                 </p></dd><dt><span class="term">-r</span></dt><dd><p>Try and bind to UDP port 137 to send and receive UDP
  23                 datagrams. The reason for this option is a bug in Windows 95
  24                 where it ignores the source port of the requesting packet
  25                 and only replies to UDP port 137. Unfortunately, on most UNIX
  26                 systems root privilege is needed to bind to this port, and
  27                 in addition, if the <a href="nmbd.8.html"><span class="citerefentry"><span class="refentrytitle">nmbd</span>(8)</span></a> daemon is running on this machine it also binds to this port.
  28                 </p></dd><dt><span class="term">-A</span></dt><dd><p>Interpret <i class="replaceable"><tt>name</tt></i> as
  29                 an IP Address and do a node status query on this address.</p></dd><dt><span class="term">-n &lt;primary NetBIOS name&gt;</span></dt><dd><p>This option allows you to override
  30 the NetBIOS name that Samba uses for itself. This is identical
  31 to setting the <a class="indexterm" name="id2796756"></a><i class="parameter"><tt>netbios name</tt></i> parameter in the <tt class="filename">smb.conf</tt> file.
  32 However, a command
  33 line setting will take precedence over settings in
  34 <tt class="filename">smb.conf</tt>.</p></dd><dt><span class="term">-i &lt;scope&gt;</span></dt><dd><p>This specifies a NetBIOS scope that
  35 <b class="command">nmblookup</b> will use to communicate with when
  36 generating NetBIOS names. For details on the use of NetBIOS
  37 scopes, see rfc1001.txt and rfc1002.txt. NetBIOS scopes are
  38 <span class="emphasis"><em>very</em></span> rarely used, only set this parameter
  39 if you are the system administrator in charge of all the
  40 NetBIOS systems you communicate with.</p></dd><dt><span class="term">-W|--workgroup=domain</span></dt><dd><p>Set the SMB domain of the username.   This
  41 overrides the default domain which is the domain defined in
  42 smb.conf.  If the domain specified is the same as the servers
  43 NetBIOS name, it causes the client to log on using the servers local
  44 SAM (as opposed to the Domain SAM). </p></dd><dt><span class="term">-O socket options</span></dt><dd><p>TCP socket options to set on the client
  45 socket. See the socket options parameter in
  46 the <tt class="filename">smb.conf</tt> manual page for the list of valid
  47 options. </p></dd><dt><span class="term">-h|--help</span></dt><dd><p>Print a summary of command line options.
  48 </p></dd><dt><span class="term">-B &lt;broadcast address&gt;</span></dt><dd><p>Send the query to the given broadcast address. Without
  49                 this option the default behavior of nmblookup is to send the
  50                 query to the broadcast address of the network interfaces as
  51                 either auto-detected or defined in the <a href="smb.conf.5.html#INTERFACES" target="_top"><i class="parameter"><tt>interfaces</tt></i>
  52                 </a> parameter of the <a href="smb.conf.5.html"><span class="citerefentry"><span class="refentrytitle">smb.conf</span>(5)</span></a> file.
  53                 </p></dd><dt><span class="term">-U &lt;unicast address&gt;</span></dt><dd><p>Do a unicast query to the specified address or
  54                 host <i class="replaceable"><tt>unicast address</tt></i>. This option
  55                 (along with the <i class="parameter"><tt>-R</tt></i> option) is needed to
  56                 query a WINS server.</p></dd><dt><span class="term">-V</span></dt><dd><p>Prints the version number for
  57 <b class="command">smbd</b>.</p></dd><dt><span class="term">-s &lt;configuration file&gt;</span></dt><dd><p>The file specified contains the
  58 configuration details required by the server.  The
  59 information in this file includes server-specific
  60 information such as what printcap file to use, as well
  61 as descriptions of all the services that the server is
  62 to provide. See <tt class="filename">smb.conf</tt> for more information.
  63 The default configuration file name is determined at
  64 compile time.</p></dd><dt><span class="term">-d|--debug=debuglevel</span></dt><dd><p><i class="replaceable"><tt>debuglevel</tt></i> is an integer
  65 from 0 to 10.  The default value if this parameter is
  66 not specified is zero.</p><p>The higher this value, the more detail will be
  67 logged to the log files about the activities of the
  68 server. At level 0, only critical errors and serious
  69 warnings will be logged. Level 1 is a reasonable level for
  70 day to day running - it generates a small amount of
  71 information about operations carried out.</p><p>Levels above 1 will generate considerable
  72 amounts of log data, and should only be used when
  73 investigating a problem. Levels above 3 are designed for
  74 use only by developers and generate HUGE amounts of log
  75 data, most of which is extremely cryptic.</p><p>Note that specifying this parameter here will
  76 override the <a class="indexterm" name="id2797037"></a><i class="parameter"><tt>log level</tt></i> parameter
  77 in the <tt class="filename">smb.conf</tt> file.</p></dd><dt><span class="term">-l|--logfile=logbasename</span></dt><dd><p>File name for log/debug files. The extension
  78 <tt class="constant">&quot;.client&quot;</tt> will be appended. The log file is
  79 never removed by the client.
  80 </p></dd><dt><span class="term">-T</span></dt><dd><p>This causes any IP addresses found in the
  81                 lookup to be looked up via a reverse DNS lookup into a
  82                 DNS name, and printed out before each</p><p><span class="emphasis"><em>IP address .... NetBIOS name</em></span></p><p> pair that is the normal output.</p></dd><dt><span class="term">-f</span></dt><dd><p>
  83                 Show which flags apply to the name that has been looked up. Possible
  84                 answers are zero or more of: Response, Authoritative,
  85                 Truncated, Recursion_Desired, Recursion_Available, Broadcast.
  86                 </p></dd><dt><span class="term">name</span></dt><dd><p>This is the NetBIOS name being queried. Depending
  87                 upon the previous options this may be a NetBIOS name or IP address.
  88                 If a NetBIOS name then the different name types may be specified
  89                 by appending '#&lt;type&gt;' to the name. This name may also be
  90                 '*', which will return all registered names within a broadcast
  91                 area.</p></dd></dl></div></div><div class="refsect1" lang="en"><h2>EXAMPLES</h2><p><b class="command">nmblookup</b> can be used to query
  92                 a WINS server (in the same way <b class="command">nslookup</b> is
  93                 used to query DNS servers). To query a WINS server, <b class="command">nmblookup</b>
  94                 must be called like this:</p><p><b class="command">nmblookup -U server -R 'name'</b></p><p>For example, running :</p><p><b class="command">nmblookup -U samba.org -R 'IRIX#1B'</b></p><p>would query the WINS server samba.org for the domain
  95                 master browser (1B name type) for the IRIX workgroup.</p></div><div class="refsect1" lang="en"><h2>VERSION</h2><p>This man page is correct for version 3.0 of
  96         the Samba suite.</p></div><div class="refsect1" lang="en"><h2>SEE ALSO</h2><p><a href="nmbd.8.html"><span class="citerefentry"><span class="refentrytitle">nmbd</span>(8)</span></a>, <a href="samba.7.html"><span class="citerefentry"><span class="refentrytitle">samba</span>(7)</span></a>, and <a href="smb.conf.5.html"><span class="citerefentry"><span class="refentrytitle">smb.conf</span>(5)</span></a>.</p></div><div class="refsect1" lang="en"><h2>AUTHOR</h2><p>The original Samba software and related utilities
  97         were created by Andrew Tridgell. Samba is now developed
  98         by the Samba Team as an Open Source project similar
  99         to the way the Linux kernel is developed.</p><p>The original Samba man pages were written by Karl Auer.
 100         The man page sources were converted to YODL format (another
 101         excellent piece of Open Source software, available at <a href="ftp://ftp.icce.rug.nl/pub/unix/" target="_top">
 102         ftp://ftp.icce.rug.nl/pub/unix/</a>) and updated for the Samba 2.0
 103         release by Jeremy Allison.  The conversion to DocBook for
 104         Samba 2.2 was done by Gerald Carter. The conversion to DocBook
 105         XML 4.2 for Samba 3.0 was done by Alexander Bokovoy.</p></div></div></body></html>