~zulcss/samba/server-dailies-3.4

\FCnmblookup\F[] [\-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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.fam

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.SH "DESCRIPTION"

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.PP

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This tool is part of the

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\fBsamba\fR(7)

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suite\&.

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.PP

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\FCnmblookup\F[]

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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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.SH "OPTIONS"

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.PP

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\-M

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.RS 4

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Searches for a master browser by looking up the NetBIOS name

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\fIname\fR

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with a type of

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\fB0x1d\fR\&. If

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\fI name\fR

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is "\-" then it does a lookup on the special name

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\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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\fBnmblookup \-M \-\- \-\fR\&.

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.RE

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.PP

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\-R

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.RS 4

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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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.RE

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.PP

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\-S

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.RS 4

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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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.RE

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.PP

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\-r

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.RS 4

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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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\fBnmbd\fR(8)

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daemon is running on this machine it also binds to this port\&.

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.RE

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.PP

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\-A

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.RS 4

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Interpret

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\fIname\fR

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as an IP Address and do a node status query on this address\&.

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.RE

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.PP

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\-n|\-\-netbiosname <primary NetBIOS name>

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.RS 4

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This option allows you to override the NetBIOS name that Samba uses for itself\&. This is identical to setting the

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\m[blue]\fB\%smb.conf.5.html#\fR\m[]

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parameter in the

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\FCsmb\&.conf\F[]

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file\&. However, a command line setting will take precedence over settings in

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\FCsmb\&.conf\F[]\&.

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.RE

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.PP

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\-i|\-\-scope <scope>

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.RS 4

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This specifies a NetBIOS scope that

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\FCnmblookup\F[]

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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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\fIvery\fR

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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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.RE

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.PP

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\-W|\-\-workgroup=domain

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.RS 4

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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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.RE

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.PP

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\-O|\-\-socket\-options socket options

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.RS 4

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TCP socket options to set on the client socket\&. See the socket options parameter in the

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\FCsmb\&.conf\F[]

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manual page for the list of valid options\&.

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.RE

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.PP

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\-h|\-\-help

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.RS 4

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Print a summary of command line options\&.

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.RE

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.PP

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\-B <broadcast address>

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.RS 4

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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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\fIinterfaces\fR

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parameter of the

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\fBsmb.conf\fR(5)

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file\&.

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.RE

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.PP

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\-U <unicast address>

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.RS 4

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Do a unicast query to the specified address or host

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\fIunicast address\fR\&. This option (along with the

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\fI\-R\fR

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option) is needed to query a WINS server\&.

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.RE

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.PP

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\-d|\-\-debuglevel=level

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.RS 4

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\fIlevel\fR

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is an integer from 0 to 10\&. The default value if this parameter is not specified is 0\&.

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.sp

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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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.sp

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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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.sp

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Note that specifying this parameter here will override the

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\m[blue]\fB\%smb.conf.5.html#\fR\m[]

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parameter in the

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\FCsmb\&.conf\F[]

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file\&.

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.RE

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.PP

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\-V|\-\-version

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.RS 4

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Prints the program version number\&.

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.RE

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.PP

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\-s|\-\-configfile <configuration file>

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.RS 4

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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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\FCsmb\&.conf\F[]

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for more information\&. The default configuration file name is determined at compile time\&.

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.RE

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.PP

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\-l|\-\-log\-basename=logdirectory

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.RS 4

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Base directory name for log/debug files\&. The extension

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\fB"\&.progname"\fR

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will be appended (e\&.g\&. log\&.smbclient, log\&.smbd, etc\&.\&.\&.)\&. The log file is never removed by the client\&.

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.RE

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.PP

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\-T

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.RS 4

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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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.sp

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\fIIP address \&.\&.\&.\&. NetBIOS name\fR

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.sp

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pair that is the normal output\&.

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.RE

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.PP

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\-f

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.RS 4

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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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.RE

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.PP

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name

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.RS 4

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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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.RE

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.SH "EXAMPLES"

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.PP

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\FCnmblookup\F[]

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can be used to query a WINS server (in the same way

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\FCnslookup\F[]

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is used to query DNS servers)\&. To query a WINS server,

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\FCnmblookup\F[]

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must be called like this:

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.PP

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\FCnmblookup \-U server \-R \'name\'\F[]

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.PP

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For example, running :

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.PP

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\FCnmblookup \-U samba\&.org \-R \'IRIX#1B\'\F[]

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.PP

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

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.SH "VERSION"

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.PP

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

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.SH "SEE ALSO"

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.PP

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\fBnmbd\fR(8),

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\fBsamba\fR(7), and

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\fBsmb.conf\fR(5)\&.

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.SH "AUTHOR"

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.PP

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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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.PP

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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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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\&.