1 2 3 4 5 6 7<html><head><title>nmblookup (1)</title> 8 9<link rev="made" href="mailto:samba@samba.org"> 10</head> 11<body> 12 13<hr> 14 15<h1>nmblookup (1)</h1> 16<h2>Samba</h2> 17<h2>23 Oct 1998</h2> 18 19 20 21<p><a name="NAME"></a> 22<h2>NAME</h2> 23 nmblookup - NetBIOS over TCP/IP client used to lookup NetBIOS names 24<p><a name="SYNOPSIS"></a> 25<h2>SYNOPSIS</h2> 26 27<p><strong>nmblookup</strong> [<a href="nmblookup.1.html#minusM">-M</a>] [<a href="nmblookup.1.html#minusR">-R</a>] [<a href="nmblookup.1.html#minusS">-S</a>] [<a href="nmblookup.1.html#minusr">-r</a>] [<a href="nmblookup.1.html#minusA">-A</a>] [<a href="nmblookup.1.html#minush">-h</a>] [<a href="nmblookup.1.html#minusB">-B broadcast address</a>] [<a href="nmblookup.1.html#minusU">-U unicast address</a>] [<a href="nmblookup.1.html#minusd">-d debuglevel</a>] [<a href="nmblookup.1.html#minuss">-s smb config file</a>] [<a href="nmblookup.1.html#minusi">-i NetBIOS scope</a>] [<a href="nmblookup.1.html#minusT">-T</a>] <a href="nmblookup.1.html#name">name</a> 28<p><a name="DESCRIPTION"></a> 29<h2>DESCRIPTION</h2> 30 31<p>This program is part of the <strong>Samba</strong> suite. 32<p><strong>nmblookup</strong> is used to query NetBIOS names and map them to IP 33addresses in a network using NetBIOS over TCP/IP queries. The options 34allow the name queries to be directed at a particular IP broadcast area 35or to a particular machine. All queries are done over UDP. 36<p><a name="OPTIONS"></a> 37<h2>OPTIONS</h2> 38 39<p><dl> 40<p><a name="minusM"></a> 41<p></p><dt><strong><strong>-M</strong></strong><dd> Searches for a master browser by looking up the 42NetBIOS name <a href="nmblookup.1.html#name"><strong>name</strong></a> with a type of 0x1d. If <a href="nmblookup.1.html#name"><strong>name</strong></a> 43is <code>"-"</code> then it does a lookup on the special name <code>__MSBROWSE__</code>. 44<p><a name="minusR"></a> 45<p></p><dt><strong><strong>-R</strong></strong><dd> Set the recursion desired bit in the packet to do a 46recursive lookup. This is used when sending a name query to a machine 47running a WINS server and the user wishes to query the names in the 48WINS server. If this bit is unset the normal (broadcast responding) 49NetBIOS processing code on a machine is used instead. See rfc1001, 50rfc1002 for details. 51<p><a name="minusS"></a> 52<p></p><dt><strong><strong>-S</strong></strong><dd> Once the name query has returned an IP address then do a 53node status query as well. A node status query returns the NetBIOS names 54registered by a host. 55<p><a name="minusr"></a> 56<p></p><dt><strong><strong>-r</strong></strong><dd> Try and bind to UDP port 137 to send and receive UDP 57datagrams. The reason for this option is a bug in Windows 95 where it 58ignores the source port of the requesting packet and only replies to 59UDP port 137. Unfortunately, on most UNIX systems root privilage is 60needed to bind to this port, and in addition, if the 61<a href="nmbd.8.html"><strong>nmbd</strong></a> daemon is running on this machine it also 62binds to this port. 63<p><a name="minusA"></a> 64<p></p><dt><strong><strong>-A</strong></strong><dd> Interpret <name> as an IP Address and do a node status 65query on this address. 66<p><a name="minush"></a> 67<p></p><dt><strong><strong>-h</strong></strong><dd> Print a help (usage) message. 68<p><a name="minusB"></a> 69<p></p><dt><strong><strong>-B broadcast address</strong></strong><dd> Send the query to the given broadcast 70address. Without this option the default behavior of nmblookup is to 71send the query to the broadcast address of the network 72interfaces as either auto-detected or defined in the 73<a href="smb.conf.5.html#interfaces"><strong>interfaces</strong></a> parameter of the 74<a href="smb.conf.5.html"><strong>smb.conf (5)</strong></a> file. 75<p><a name="minusU"></a> 76<p></p><dt><strong><strong>-U unicast address</strong></strong><dd> Do a unicast query to the specified 77address or host <code>"unicast address"</code>. This option (along with the 78<a href="nmblookup.1.html#minusR"><strong>-R</strong></a> option) is needed to query a WINS server. 79<p><a name="minusd"></a> 80<p></p><dt><strong><strong>-d debuglevel</strong></strong><dd> debuglevel is an integer from 0 to 10. 81<p>The default value if this parameter is not specified is zero. 82<p>The higher this value, the more detail will be logged about the 83activities of <strong>nmblookup</strong>. At level 0, only critical errors and 84serious warnings will be logged. 85<p>Levels above 1 will generate considerable amounts of log data, and 86should only be used when investigating a problem. Levels above 3 are 87designed for use only by developers and generate HUGE amounts of 88data, most of which is extremely cryptic. 89<p>Note that specifying this parameter here will override the <a href="smb.conf.5.html#loglevel"><strong>log 90level</strong></a> parameter in the <a href="smb.conf.5.html"><strong>smb.conf 91(5)</strong></a> file. 92<p><a name="minuss"></a> 93<p></p><dt><strong><strong>-s smb.conf</strong></strong><dd> This parameter specifies the pathname to the 94Samba configuration file, <a href="smb.conf.5.html"><strong>smb.conf</strong></a>. 95This file controls all aspects of 96the Samba setup on the machine. 97<p><a name="minusi"></a> 98<p></p><dt><strong><strong>-i scope</strong></strong><dd> This specifies a NetBIOS scope that <strong>nmblookup</strong> will use 99to communicate with when generating NetBIOS names. For details on the 100use of NetBIOS scopes, see rfc1001.txt and rfc1002.txt. NetBIOS scopes 101are <em>very</em> rarely used, only set this parameter if you are the 102system administrator in charge of all the NetBIOS systems you 103communicate with. 104<p><a name="minusT"></a> 105<p></p><dt><strong><strong>-T</strong></strong><dd> This causes any IP addresses found in the lookup to be 106looked up via a reverse DNS lookup into a DNS name, and printed out 107before each <code>"IP address NetBIOS name"</code> pair that is the normal 108output. 109<p><a name="name"></a> 110<p></p><dt><strong><strong>name</strong></strong><dd> This is the NetBIOS name being queried. Depending upon 111the previous options this may be a NetBIOS name or IP address. If a 112NetBIOS name then the different name types may be specified by 113appending <code>#<type></code> to the name. This name may also be <code>"*"</code>, 114which will return all registered names within a broadcast area. 115<p></dl> 116<p><a name="EXAMPLES"></a> 117<h2>EXAMPLES</h2> 118 119<p><strong>nmblookup</strong> can be used to query a WINS server (in the same way 120<strong>nslookup</strong> is used to query DNS servers). To query a WINS server, 121<strong>nmblookup</strong> must be called like this: 122<p><code>nmblookup -U server -R 'name'</code> 123<p>For example, running : 124<p><code>nmblookup -U samba.org -R IRIX#1B'</code> 125<p>would query the WINS server samba.org for the domain master 126browser (1B name type) for the IRIX workgroup. 127<p><a name="VERSION"></a> 128<h2>VERSION</h2> 129 130<p>This man page is correct for version 2.0 of the Samba suite. 131<p><a name="SEEALSO"></a> 132<h2>SEE ALSO</h2> 133 134<p><a href="samba.7.html"><strong>samba (7)</strong></a>, <a href="nmbd.8.html"><strong>nmbd (8)</strong></a>, 135<a href="smb.conf.5.html"><strong>smb.conf (5)</strong></a> 136<p><a name="AUTHOR"></a> 137<h2>AUTHOR</h2> 138 139<p>The original Samba software and related utilities were created by 140Andrew Tridgell <a href="mailto:samba@samba.org"><em>samba@samba.org</em></a>. Samba is now developed 141by the Samba Team as an Open Source project similar to the way the 142Linux kernel is developed. 143<p>The original Samba man pages were written by Karl Auer. The man page 144sources were converted to YODL format (another excellent piece of Open 145Source software, available at 146<a href="ftp://ftp.icce.rug.nl/pub/unix/"><strong>ftp://ftp.icce.rug.nl/pub/unix/</strong></a>) 147and updated for the Samba2.0 release by Jeremy Allison. 148<a href="mailto:samba@samba.org"><em>samba@samba.org</em></a>. 149<p>See <a href="samba.7.html"><strong>samba (7)</strong></a> to find out how to get a full 150list of contributors and details on how to submit bug reports, 151comments etc. 152<p></body> 153</html> 154