'\" t
.\" Title: nmblookup4
.\" Author: [see the "AUTHOR" section]
.\" Generator: DocBook XSL Stylesheets v1.76.1
.\" Date: 03/24/2017
.\" Manual: User Commands
.\" Source: Samba 3.2
.\" Language: English
.\"
.TH "NMBLOOKUP4" "1" "03/24/2017" "Samba 3\&.2" "User Commands"
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.SH "NAME"
nmblookup4 \- NetBIOS over TCP/IP client used to lookup NetBIOS names
.SH "SYNOPSIS"
.HP \w'\fBnmblookup4\fR\ 'u
\fBnmblookup4\fR [\-M] [\-R] [\-S] [\-r] [\-A] [\-h] [\-B\ ] [\-U\ ] [\-d\ ] [\-s\ ] [\-i\ ] [\-T] [\-f] {name}
.SH "DESCRIPTION"
.PP
This tool is part of the
\fBsamba\fR(7)
suite\&.
.PP
\fBnmblookup4\fR
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\&.
.SH "OPTIONS"
.PP
\-M
.RS 4
Searches for a master browser by looking up the NetBIOS
\fIname\fR
with a type of
\fB0x1d\fR\&. If
\fI name\fR
is "\-" then it does a lookup on the special name
\fB__MSBROWSE__\fR\&. Please note that in order to use the name "\-", you need to make sure "\-" isn\*(Aqt parsed as an argument, e\&.g\&. use :
\fBnmblookup4 \-M \-\- \-\fR\&.
.RE
.PP
\-R
.RS 4
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\&.
.RE
.PP
\-S
.RS 4
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\&.
.RE
.PP
\-r
.RS 4
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
\fBnmbd\fR(8)
daemon is running on this machine it also binds to this port\&.
.RE
.PP
\-A
.RS 4
Interpret
\fIname\fR
as an IP Address and do a node status query on this address\&.
.RE
.PP
\-B
.RS 4
Send the query to the given broadcast address\&. Without this option the default behavior of nmblookup4 is to send the query to the broadcast address of the network interfaces as either auto\-detected or defined in the
\m[blue]\fB\fIinterfaces\fR\fR\m[]\&\s-2\u[1]\d\s+2
parameter of the
\fBsmb.conf\fR(5)
file\&.
.RE
.PP
\-U
.RS 4
Do a unicast query to the specified address or host
\fIunicast address\fR\&. This option (along with the
\fI\-R\fR
option) is needed to query a WINS server\&.
.RE
.PP
\-T
.RS 4
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
.sp
\fIIP address \&.\&.\&.\&. NetBIOS name\fR
.sp
pair that is the normal output\&.
.RE
.PP
\-f
.RS 4
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\&.
.RE
.PP
name
.RS 4
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 \*(Aq#\*(Aq to the name\&. This name may also be \*(Aq*\*(Aq, which will return all registered names within a broadcast area\&.
.RE
.SH "EXAMPLES"
.PP
\fBnmblookup4\fR
can be used to query a WINS server (in the same way
\fBnslookup\fR
is used to query DNS servers)\&. To query a WINS server,
\fBnmblookup4\fR
must be called like this:
.PP
\fBnmblookup4 \-U server \-R \*(Aqname\*(Aq\fR
.PP
For example, running :
.PP
\fBnmblookup4 \-U samba\&.org \-R \*(AqIRIX#1B\*(Aq\fR
.PP
would query the WINS server samba\&.org for the domain master browser (1B name type) for the IRIX workgroup\&.
.SH "VERSION"
.PP
This man page is correct for version 3 of the Samba suite\&.
.SH "SEE ALSO"
.PP
\fBnmbd\fR(8),
\fBsamba\fR(7), and
\fBsmb.conf\fR(5)\&.
.SH "AUTHOR"
.PP
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\&.
.PP
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
\m[blue]\fBftp://ftp\&.icce\&.rug\&.nl/pub/unix/\fR\m[]\&\s-2\u[2]\d\s+2) 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\&.
.SH "NOTES"
.IP " 1." 4
\fIinterfaces\fR
.RS 4
\%[set $man.base.url.for.relative.links]/smb.conf.5.html#INTERFACES
.RE
.IP " 2." 4
ftp://ftp.icce.rug.nl/pub/unix/
.RS 4
\%ftp://ftp.icce.rug.nl/pub/unix/
.RE