x SuSE Linux 13.1-RELEASE x
x SuSE Linux 13.1-RELEASEx
NMBLOOKUP(1) User Commands NMBLOOKUP(1)
NAME
nmblookup - NetBIOS over TCP/IP client used to lookup NetBIOS names
SYNOPSIS
nmblookup [-M|--master-browser] [--recursion] [-S|--status]
[-r|--root-port] [-A|--lookup-by-ip]
[-B|--broadcast=BROADCAST-ADDRESS] [-U|--unicast=UNICAST-ADDRESS]
[-T|--translate] [-f|--flags] [-?|--help] [--usage]
[-d|--debuglevel=DEBUGLEVEL] [--debug-stdout]
[--configfile=CONFIGFILE] [--option=name=value]
[-l|--log-basename=LOGFILEBASE] [--leak-report] [--leak-report-full]
[-R|--name-resolve=NAME-RESOLVE-ORDER]
[-O|--socket-options=SOCKETOPTIONS] [-m|--max-protocol=MAXPROTOCOL]
[-n|--netbiosname=NETBIOSNAME] [--netbios-scope=SCOPE]
[-W|--workgroup=WORKGROUP] [--realm=REALM] {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 -- -.
--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.
-d|--debuglevel=DEBUGLEVEL
level is an integer from 0 to 10. The default value if this
parameter is not specified is 1 for client applications.
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.
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.
Note that specifying this parameter here will override the log
level parameter in the /etc/samba/smb.conf file.
--debug-stdout
This will redirect debug output to STDOUT. By default all clients
are logging to STDERR.
--configfile=<configuration file>
The file specified contains the configuration details required by
the client. The information in this file can be general for client
and server or only provide client specific like options such as
client smb encrypt. See /etc/samba/smb.conf for more information.
The default configuration file name is determined at compile time.
--option=<name>=<value>
Set the smb.conf(5) option "<name>" to value "<value>" from the
command line. This overrides compiled-in defaults and options read
from the configuration file. If a name or a value includes a space,
wrap whole --option=name=value into quotes.
-l|--log-basename=logdirectory
Base directory name for log/debug files. The extension ".progname"
will be appended (e.g. log.smbclient, log.smbd, etc...). The log
file is never removed by the client.
--leak-report
Enable talloc leak reporting on exit.
--leak-report-full
Enable full talloc leak reporting on exit.
-V|--version
Prints the program version number.
-R|--name-resolve=NAME-RESOLVE-ORDER
This option is used to determine what naming services and in what
order to resolve host names to IP addresses. The option takes a
space-separated string of different name resolution options. The
best is to wrap the whole --name-resolve=NAME-RESOLVE-ORDER into
quotes.
The options are: "lmhosts", "host", "wins" and "bcast". They cause
names to be resolved as follows:
o lmhosts: Lookup an IP address in the Samba lmhosts file.
If the line in lmhosts has no name type attached to the
NetBIOS name (see the lmhosts(5) for details) then any
name type matches for lookup.
o host: Do a standard host name to IP address resolution,
using the system /etc/hosts, NIS, or DNS lookups. This
method of name resolution is operating system dependent,
for instance on IRIX or Solaris this may be controlled
by the /etc/nsswitch.conf file). Note that this method
is only used if the NetBIOS name type being queried is
the 0x20 (server) name type, otherwise it is ignored.
o wins: Query a name with the IP address listed in the
wins server parameter. If no WINS server has been
specified this method will be ignored.
o bcast: Do a broadcast on each of the known local
interfaces listed in the interfaces parameter. This is
the least reliable of the name resolution methods as it
depends on the target host being on a locally connected
subnet.
If this parameter is not set then the name resolve order defined in
the /etc/samba/smb.conf file parameter (name resolve order) will be
used.
The default order is lmhosts, host, wins, bcast. Without this
parameter or any entry in the name resolve order parameter of the
/etc/samba/smb.conf file, the name resolution methods will be
attempted in this order.
-O|--socket-options=SOCKETOPTIONS
TCP socket options to set on the client socket. See the socket
options parameter in the /etc/samba/smb.conf manual page for the
list of valid options.
-m|--max-protocol=MAXPROTOCOL
The value of the parameter (a string) is the highest protocol level
that will be supported by the client.
Note that specifying this parameter here will override the client
max protocol parameter in the /etc/samba/smb.conf file.
-n|--netbiosname=NETBIOSNAME
This option allows you to override the NetBIOS name that Samba uses
for itself. This is identical to setting the netbios name parameter
in the /etc/samba/smb.conf file. However, a command line setting
will take precedence over settings in /etc/samba/smb.conf.
--netbios-scope=SCOPE
This specifies a NetBIOS scope that nmblookup 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 very rarely used, only set this parameter if you are the
system administrator in charge of all the NetBIOS systems you
communicate with.
-W|--workgroup=WORKGROUP
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).
Note that specifying this parameter here will override the
workgroup parameter in the /etc/samba/smb.conf file.
-r|--realm=REALM
Set the realm for the domain.
Note that specifying this parameter here will override the realm
parameter in the /etc/samba/smb.conf file.
-?|--help
Print a summary of command line options.
--usage
Display brief usage message.
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 part of version 4.21.3-4.21.31.0SUSE-oS13.2-x86_64 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.
Samba 4.21.3-4.21.31.0SUSE-o 01/18/2025 NMBLOOKUP(1)
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