1mailto(samba@samba.org) 2 3manpage(nmblookup htmlcommand((1)))(1)(23 Oct 1998)(Samba)(SAMBA) 4 5label(NAME) 6manpagename(nmblookup)(NetBIOS over TCP/IP client used to lookup NetBIOS names) 7 8label(SYNOPSIS) 9manpagesynopsis() 10 11bf(nmblookup) [link(-M)(minusM)] [link(-R)(minusR)] [link(-S)(minusS)] [link(-r)(minusr)] [link(-A)(minusA)] [link(-h)(minush)] [link(-B broadcast address)(minusB)] [link(-U unicast address)(minusU)] [link(-d debuglevel)(minusd)] [link(-s smb config file)(minuss)] [link(-i NetBIOS scope)(minusi)] [link(-T)(minusT)] link(name)(name) 12 13label(DESCRIPTION) 14manpagedescription() 15 16This program is part of the bf(Samba) suite. 17 18bf(nmblookup) is used to query NetBIOS names and map them to IP 19addresses in a network using NetBIOS over TCP/IP queries. The options 20allow the name queries to be directed at a particular IP broadcast area 21or to a particular machine. All queries are done over UDP. 22 23label(OPTIONS) 24manpageoptions() 25 26startdit() 27 28label(minusM) 29dit(bf(-M)) Searches for a master browser by looking up the 30NetBIOS name link(bf(name))(name) with a type of 0x1d. If link(bf(name))(name) 31is tt("-") then it does a lookup on the special name tt(__MSBROWSE__). 32 33label(minusR) 34dit(bf(-R)) Set the recursion desired bit in the packet to do a 35recursive lookup. This is used when sending a name query to a machine 36running a WINS server and the user wishes to query the names in the 37WINS server. If this bit is unset the normal (broadcast responding) 38NetBIOS processing code on a machine is used instead. See rfc1001, 39rfc1002 for details. 40 41label(minusS) 42dit(bf(-S)) Once the name query has returned an IP address then do a 43node status query as well. A node status query returns the NetBIOS names 44registered by a host. 45 46label(minusr) 47dit(bf(-r)) Try and bind to UDP port 137 to send and receive UDP 48datagrams. The reason for this option is a bug in Windows 95 where it 49ignores the source port of the requesting packet and only replies to 50UDP port 137. Unfortunately, on most UNIX systems root privilage is 51needed to bind to this port, and in addition, if the 52url(bf(nmbd))(nmbd.8.html) daemon is running on this machine it also 53binds to this port. 54 55label(minusA) 56dit(bf(-A)) Interpret <name> as an IP Address and do a node status 57query on this address. 58 59label(minush) 60dit(bf(-h)) Print a help (usage) message. 61 62label(minusB) 63dit(bf(-B broadcast address)) Send the query to the given broadcast 64address. Without this option the default behavior of nmblookup is to 65send the query to the broadcast address of the network 66interfaces as either auto-detected or defined in the 67url(bf(interfaces))(smb.conf.5.html#interfaces) parameter of the 68url(bf(smb.conf (5)))(smb.conf.5.html) file. 69 70label(minusU) 71dit(bf(-U unicast address)) Do a unicast query to the specified 72address or host tt("unicast address"). This option (along with the 73link(bf(-R))(minusR) option) is needed to query a WINS server. 74 75label(minusd) 76dit(bf(-d debuglevel)) debuglevel is an integer from 0 to 10. 77 78The default value if this parameter is not specified is zero. 79 80The higher this value, the more detail will be logged about the 81activities of bf(nmblookup). At level 0, only critical errors and 82serious warnings will be logged. 83 84Levels above 1 will generate considerable amounts of log data, and 85should only be used when investigating a problem. Levels above 3 are 86designed for use only by developers and generate HUGE amounts of 87data, most of which is extremely cryptic. 88 89Note that specifying this parameter here will override the url(bf(log 90level))(smb.conf.5.html#loglevel) parameter in the url(bf(smb.conf 91(5)))(smb.conf.5.html) file. 92 93label(minuss) 94dit(bf(-s smb.conf)) This parameter specifies the pathname to the 95Samba configuration file, url(bf(smb.conf))(smb.conf.5.html). 96This file controls all aspects of 97the Samba setup on the machine. 98 99label(minusi) 100dit(bf(-i scope)) This specifies a NetBIOS scope that bf(nmblookup) will use 101to communicate with when generating NetBIOS names. For details on the 102use of NetBIOS scopes, see rfc1001.txt and rfc1002.txt. NetBIOS scopes 103are em(very) rarely used, only set this parameter if you are the 104system administrator in charge of all the NetBIOS systems you 105communicate with. 106 107label(minusT) 108dit(bf(-T)) This causes any IP addresses found in the lookup to be 109looked up via a reverse DNS lookup into a DNS name, and printed out 110before each tt("IP address NetBIOS name") pair that is the normal 111output. 112 113label(name) 114dit(bf(name)) This is the NetBIOS name being queried. Depending upon 115the previous options this may be a NetBIOS name or IP address. If a 116NetBIOS name then the different name types may be specified by 117appending tt(#<type>) to the name. This name may also be tt("*"), 118which will return all registered names within a broadcast area. 119 120enddit() 121 122label(EXAMPLES) 123manpagesection(EXAMPLES) 124 125bf(nmblookup) can be used to query a WINS server (in the same way 126bf(nslookup) is used to query DNS servers). To query a WINS server, 127bf(nmblookup) must be called like this: 128 129tt(nmblookup -U server -R 'name') 130 131For example, running : 132 133tt(nmblookup -U samba.org -R IRIX#1B') 134 135would query the WINS server samba.org for the domain master 136browser (1B name type) for the IRIX workgroup. 137 138label(VERSION) 139manpagesection(VERSION) 140 141This man page is correct for version 2.0 of the Samba suite. 142 143label(SEEALSO) 144manpageseealso() 145 146url(bf(samba (7)))(samba.7.html), url(bf(nmbd (8)))(nmbd.8.html), 147url(bf(smb.conf (5)))(smb.conf.5.html) 148 149label(AUTHOR) 150manpageauthor() 151 152The original Samba software and related utilities were created by 153Andrew Tridgell email(samba@samba.org). Samba is now developed 154by the Samba Team as an Open Source project similar to the way the 155Linux kernel is developed. 156 157The original Samba man pages were written by Karl Auer. The man page 158sources were converted to YODL format (another excellent piece of Open 159Source software, available at 160url(bf(ftp://ftp.icce.rug.nl/pub/unix/))(ftp://ftp.icce.rug.nl/pub/unix/)) 161and updated for the Samba2.0 release by Jeremy Allison. 162email(samba@samba.org). 163 164See url(bf(samba (7)))(samba.7.html) to find out how to get a full 165list of contributors and details on how to submit bug reports, 166comments etc. 167 168