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NMBLOOKUP(1)			 User Commands			  NMBLOOKUP(1)

NAME
       nmblookup - NetBIOS over	TCP/IP client used to lookup NetBIOS names

SYNOPSIS
       nmblookup [-M|--master-browser] [-R|--recursion]	[-S|--status]
	[-r|--root-port] [-A|--lookup-by-ip]
	[-B|--broadcast	<broadcast address>] [-U|--unicast <unicast address>]
	[-d <debug level>] [-s <smb config file>] [-i <NetBIOS scope>]
	[-T|--translate] [-f|--flags] {name}

DESCRIPTION
       This tool is part of the	samba(7) suite.

       nmblookup 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.

OPTIONS
       -M|--master-browser
	   Searches for	a master browser by looking up the NetBIOS name	with a
	   type	of 0x1d. If
	    name is "-"	then it	does a lookup on the special name
	   __MSBROWSE__. Please	note that in order to use the name "-",	you
	   need	to make	sure "-" isn't parsed as an argument, e.g. use :
	   nmblookup -M	-- -.

       -R|--recursion
	   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.

       -S|--status
	   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.

       -r|--root-port
	   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 nmbd(8) daemon	is
	   running on this machine it also binds to this port.

       -A|--lookup-by-ip
	   Interpret name as an	IP Address and do a node status	query on this
	   address.

       -B|--broadcast <broadcast address>
	   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 interfaces	parameter of the smb.conf(5) file.

       -U|--unicast <unicast address>
	   Do a	unicast	query to the specified address or host unicast
	   address. This option	(along with the	-R option) is needed to	query
	   a WINS server.

       -T|--translate
	   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

	   IP address .... NetBIOS name

	   pair	that is	the normal output.

       -f|--flags
	   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.

       name
	   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.

EXAMPLES
       nmblookup can be	used to	query a	WINS server (in	the same way nslookup
       is used to query	DNS servers). To query a WINS server, nmblookup	must
       be called like this:

       nmblookup -U server -R 'name'

       For example, running :

       nmblookup -U samba.org -R 'IRIX#1B'

       would query the WINS server samba.org for the domain master browser (1B
       name type) for the IRIX workgroup.

VERSION
       This man	page is	correct	for version 3 of the Samba suite.

SEE ALSO
       nmbd(8),	samba(7), and smb.conf(5).

AUTHOR
       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.

       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 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.

Samba 4.6			  05/23/2017			  NMBLOOKUP(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | VERSION | SEE ALSO | AUTHOR

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