| 1 | '\" t
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| 2 | .\" Title: nmblookup
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| 3 | .\" Author: [see the "AUTHOR" section]
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| 4 | .\" Generator: DocBook XSL Stylesheets v1.75.2 <http://docbook.sf.net/>
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| 5 | .\" Date: 11/01/2012
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| 6 | .\" Manual: User Commands
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| 7 | .\" Source: Samba 3.5
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| 8 | .\" Language: English
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| 9 | .\"
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| 10 | .TH "NMBLOOKUP" "1" "11/01/2012" "Samba 3\&.5" "User Commands"
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| 11 | .\" -----------------------------------------------------------------
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| 12 | .\" * set default formatting
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| 13 | .\" -----------------------------------------------------------------
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| 14 | .\" disable hyphenation
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| 15 | .nh
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| 16 | .\" disable justification (adjust text to left margin only)
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| 17 | .ad l
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| 18 | .\" -----------------------------------------------------------------
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| 19 | .\" * MAIN CONTENT STARTS HERE *
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| 20 | .\" -----------------------------------------------------------------
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| 21 | .SH "NAME"
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| 22 | nmblookup \- NetBIOS over TCP/IP client used to lookup NetBIOS names
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| 23 | .SH "SYNOPSIS"
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| 24 | .HP \w'\ 'u
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| 25 | nmblookup [\-M] [\-R] [\-S] [\-r] [\-A] [\-h] [\-B\ <broadcast\ address>] [\-U\ <unicast\ address>] [\-d\ <debug\ level>] [\-s\ <smb\ config\ file>] [\-i\ <NetBIOS\ scope>] [\-T] [\-f] {name}
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| 26 | .SH "DESCRIPTION"
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| 27 | .PP
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| 28 | This tool is part of the
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| 29 | \fBsamba\fR(7)
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| 30 | suite\&.
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| 31 | .PP
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| 32 | nmblookup
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| 33 | is used to query NetBIOS names and map them to IP addresses in a network using NetBIOS over TCP/IP queries\&. The options allow the name queries to be directed at a particular IP broadcast area or to a particular machine\&. All queries are done over UDP\&.
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| 34 | .SH "OPTIONS"
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| 35 | .PP
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| 36 | \-M
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| 37 | .RS 4
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| 38 | Searches for a master browser by looking up the NetBIOS name
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| 39 | \fIname\fR
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| 40 | with a type of
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| 41 | \fB0x1d\fR\&. If
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| 42 | \fI name\fR
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| 43 | is "\-" then it does a lookup on the special name
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| 44 | \fB__MSBROWSE__\fR\&. Please note that in order to use the name "\-", you need to make sure "\-" isn\'t parsed as an argument, e\&.g\&. use :
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| 45 | \fBnmblookup \-M \-\- \-\fR\&.
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| 46 | .RE
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| 47 | .PP
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| 48 | \-R
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| 49 | .RS 4
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| 50 | Set the recursion desired bit in the packet to do a recursive lookup\&. This is used when sending a name query to a machine running a WINS server and the user wishes to query the names in the WINS server\&. If this bit is unset the normal (broadcast responding) NetBIOS processing code on a machine is used instead\&. See RFC1001, RFC1002 for details\&.
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| 51 | .RE
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| 52 | .PP
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| 53 | \-S
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| 54 | .RS 4
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| 55 | Once the name query has returned an IP address then do a node status query as well\&. A node status query returns the NetBIOS names registered by a host\&.
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| 56 | .RE
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| 57 | .PP
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| 58 | \-r
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| 59 | .RS 4
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| 60 | Try and bind to UDP port 137 to send and receive UDP datagrams\&. The reason for this option is a bug in Windows 95 where it ignores the source port of the requesting packet and only replies to UDP port 137\&. Unfortunately, on most UNIX systems root privilege is needed to bind to this port, and in addition, if the
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| 61 | \fBnmbd\fR(8)
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| 62 | daemon is running on this machine it also binds to this port\&.
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| 63 | .RE
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| 64 | .PP
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| 65 | \-A
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| 66 | .RS 4
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| 67 | Interpret
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| 68 | \fIname\fR
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| 69 | as an IP Address and do a node status query on this address\&.
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| 70 | .RE
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| 71 | .PP
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| 72 | \-n|\-\-netbiosname <primary NetBIOS name>
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| 73 | .RS 4
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| 74 | This option allows you to override the NetBIOS name that Samba uses for itself\&. This is identical to setting the
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| 75 | \m[blue]\fB\%smb.conf.5.html#\fR\m[]
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| 76 | parameter in the
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| 77 | smb\&.conf
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| 78 | file\&. However, a command line setting will take precedence over settings in
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| 79 | smb\&.conf\&.
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| 80 | .RE
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| 81 | .PP
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| 82 | \-i|\-\-scope <scope>
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| 83 | .RS 4
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| 84 | This specifies a NetBIOS scope that
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| 85 | nmblookup
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| 86 | will use to communicate with when generating NetBIOS names\&. For details on the use of NetBIOS scopes, see rfc1001\&.txt and rfc1002\&.txt\&. NetBIOS scopes are
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| 87 | \fIvery\fR
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| 88 | rarely used, only set this parameter if you are the system administrator in charge of all the NetBIOS systems you communicate with\&.
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| 89 | .RE
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| 90 | .PP
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| 91 | \-W|\-\-workgroup=domain
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| 92 | .RS 4
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| 93 | Set the SMB domain of the username\&. This overrides the default domain which is the domain defined in smb\&.conf\&. If the domain specified is the same as the servers NetBIOS name, it causes the client to log on using the servers local SAM (as opposed to the Domain SAM)\&.
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| 94 | .RE
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| 95 | .PP
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| 96 | \-O|\-\-socket\-options socket options
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| 97 | .RS 4
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| 98 | TCP socket options to set on the client socket\&. See the socket options parameter in the
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| 99 | smb\&.conf
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| 100 | manual page for the list of valid options\&.
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| 101 | .RE
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| 102 | .PP
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| 103 | \-h|\-\-help
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| 104 | .RS 4
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| 105 | Print a summary of command line options\&.
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| 106 | .RE
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| 107 | .PP
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| 108 | \-B <broadcast address>
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| 109 | .RS 4
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| 110 | Send the query to the given broadcast address\&. Without this option the default behavior of nmblookup is to send the query to the broadcast address of the network interfaces as either auto\-detected or defined in the
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| 111 | \fIinterfaces\fR
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| 112 | parameter of the
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| 113 | \fBsmb.conf\fR(5)
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| 114 | file\&.
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| 115 | .RE
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| 116 | .PP
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| 117 | \-U <unicast address>
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| 118 | .RS 4
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| 119 | Do a unicast query to the specified address or host
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| 120 | \fIunicast address\fR\&. This option (along with the
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| 121 | \fI\-R\fR
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| 122 | option) is needed to query a WINS server\&.
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| 123 | .RE
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| 124 | .PP
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| 125 | \-d|\-\-debuglevel=level
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| 126 | .RS 4
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| 127 | \fIlevel\fR
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| 128 | is an integer from 0 to 10\&. The default value if this parameter is not specified is 0\&.
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| 129 | .sp
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| 130 | The higher this value, the more detail will be logged to the log files about the activities of the server\&. At level 0, only critical errors and serious warnings will be logged\&. Level 1 is a reasonable level for day\-to\-day running \- it generates a small amount of information about operations carried out\&.
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| 131 | .sp
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| 132 | Levels above 1 will generate considerable amounts of log data, and should only be used when investigating a problem\&. Levels above 3 are designed for use only by developers and generate HUGE amounts of log data, most of which is extremely cryptic\&.
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| 133 | .sp
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| 134 | Note that specifying this parameter here will override the
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| 135 | \m[blue]\fB\%smb.conf.5.html#\fR\m[]
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| 136 | parameter in the
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| 137 | smb\&.conf
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| 138 | file\&.
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| 139 | .RE
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| 140 | .PP
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| 141 | \-V|\-\-version
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| 142 | .RS 4
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| 143 | Prints the program version number\&.
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| 144 | .RE
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| 145 | .PP
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| 146 | \-s|\-\-configfile <configuration file>
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| 147 | .RS 4
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| 148 | The file specified contains the configuration details required by the server\&. The information in this file includes server\-specific information such as what printcap file to use, as well as descriptions of all the services that the server is to provide\&. See
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| 149 | smb\&.conf
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| 150 | for more information\&. The default configuration file name is determined at compile time\&.
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| 151 | .RE
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| 152 | .PP
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| 153 | \-l|\-\-log\-basename=logdirectory
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| 154 | .RS 4
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| 155 | Base directory name for log/debug files\&. The extension
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| 156 | \fB"\&.progname"\fR
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| 157 | will be appended (e\&.g\&. log\&.smbclient, log\&.smbd, etc\&.\&.\&.)\&. The log file is never removed by the client\&.
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| 158 | .RE
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| 159 | .PP
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| 160 | \-T
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| 161 | .RS 4
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| 162 | This causes any IP addresses found in the lookup to be looked up via a reverse DNS lookup into a DNS name, and printed out before each
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| 163 | .sp
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| 164 | \fIIP address \&.\&.\&.\&. NetBIOS name\fR
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| 165 | .sp
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| 166 | pair that is the normal output\&.
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| 167 | .RE
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| 168 | .PP
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| 169 | \-f
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| 170 | .RS 4
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| 171 | Show which flags apply to the name that has been looked up\&. Possible answers are zero or more of: Response, Authoritative, Truncated, Recursion_Desired, Recursion_Available, Broadcast\&.
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| 172 | .RE
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| 173 | .PP
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| 174 | name
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| 175 | .RS 4
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| 176 | This is the NetBIOS name being queried\&. Depending upon the previous options this may be a NetBIOS name or IP address\&. If a NetBIOS name then the different name types may be specified by appending \'#<type>\' to the name\&. This name may also be \'*\', which will return all registered names within a broadcast area\&.
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| 177 | .RE
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| 178 | .SH "EXAMPLES"
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| 179 | .PP
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| 180 | nmblookup
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| 181 | can be used to query a WINS server (in the same way
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| 182 | nslookup
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| 183 | is used to query DNS servers)\&. To query a WINS server,
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| 184 | nmblookup
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| 185 | must be called like this:
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| 186 | .PP
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| 187 | nmblookup \-U server \-R \'name\'
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| 188 | .PP
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| 189 | For example, running :
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| 190 | .PP
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| 191 | nmblookup \-U samba\&.org \-R \'IRIX#1B\'
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| 192 | .PP
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| 193 | would query the WINS server samba\&.org for the domain master browser (1B name type) for the IRIX workgroup\&.
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| 194 | .SH "VERSION"
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| 195 | .PP
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| 196 | This man page is correct for version 3 of the Samba suite\&.
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| 197 | .SH "SEE ALSO"
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| 198 | .PP
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| 199 | \fBnmbd\fR(8),
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| 200 | \fBsamba\fR(7), and
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| 201 | \fBsmb.conf\fR(5)\&.
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| 202 | .SH "AUTHOR"
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| 203 | .PP
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| 204 | The original Samba software and related utilities were created by Andrew Tridgell\&. Samba is now developed by the Samba Team as an Open Source project similar to the way the Linux kernel is developed\&.
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| 205 | .PP
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| 206 | The original Samba man pages were written by Karl Auer\&. The man page sources were converted to YODL format (another excellent piece of Open Source software, available at
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| 207 | ftp://ftp\&.icce\&.rug\&.nl/pub/unix/) and updated for the Samba 2\&.0 release by Jeremy Allison\&. The conversion to DocBook for Samba 2\&.2 was done by Gerald Carter\&. The conversion to DocBook XML 4\&.2 for Samba 3\&.0 was done by Alexander Bokovoy\&.
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