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-<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>nmbd</title><link rel="stylesheet" href="samba.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.60.1"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" lang="en"><a name="nmbd.8"></a><div class="titlepage"><div></div><div></div></div><div class="refnamediv"><h2>Name</h2><p>nmbd &#8212; NetBIOS name server to provide NetBIOS
- over IP naming services to clients</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="cmdsynopsis"><p><tt class="command">nmbd</tt> [-D] [-F] [-S] [-a] [-i] [-o] [-h] [-V] [-d &lt;debug level&gt;] [-H &lt;lmhosts file&gt;] [-l &lt;log directory&gt;] [-n &lt;primary netbios name&gt;] [-p &lt;port number&gt;] [-s &lt;configuration file&gt;]</p></div></div><div class="refsect1" lang="en"><h2>DESCRIPTION</h2><p>This program is part of the <a href="Samba.7.html"><span class="citerefentry"><span class="refentrytitle">Samba</span>(7)</span></a> suite.</p><p><b class="command">nmbd</b> is a server that understands
- and can reply to NetBIOS over IP name service requests, like
- those produced by SMB/CIFS clients such as Windows 95/98/ME,
- Windows NT, Windows 2000, Windows XP and LanManager clients. It also
- participates in the browsing protocols which make up the
- Windows "Network Neighborhood" view.</p><p>SMB/CIFS clients, when they start up, may wish to
- locate an SMB/CIFS server. That is, they wish to know what
- IP number a specified host is using.</p><p>Amongst other services, <b class="command">nmbd</b> will
- listen for such requests, and if its own NetBIOS name is
- specified it will respond with the IP number of the host it
- is running on. Its "own NetBIOS name" is by
- default the primary DNS name of the host it is running on,
- but this can be overridden with the <span class="emphasis"><em>-n</em></span>
- option (see OPTIONS below). Thus <b class="command">nmbd</b> will
- reply to broadcast queries for its own name(s). Additional
- names for <b class="command">nmbd</b> to respond on can be set
- via parameters in the <a href="smb.conf.5.html"><span class="citerefentry"><span class="refentrytitle">smb.conf</span>(5)</span></a> configuration file.</p><p><b class="command">nmbd</b> can also be used as a WINS
- (Windows Internet Name Server) server. What this basically means
- is that it will act as a WINS database server, creating a
- database from name registration requests that it receives and
- replying to queries from clients for these names.</p><p>In addition, <b class="command">nmbd</b> can act as a WINS
- proxy, relaying broadcast queries from clients that do
- not understand how to talk the WINS protocol to a WINS
- server.</p></div><div class="refsect1" lang="en"><h2>OPTIONS</h2><div class="variablelist"><dl><dt><span class="term">-D</span></dt><dd><p>If specified, this parameter causes
- <b class="command">nmbd</b> to operate as a daemon. That is,
- it detaches itself and runs in the background, fielding
- requests on the appropriate port. By default, <b class="command">nmbd</b>
- will operate as a daemon if launched from a command shell.
- nmbd can also be operated from the <b class="command">inetd</b>
- meta-daemon, although this is not recommended.
- </p></dd><dt><span class="term">-F</span></dt><dd><p>If specified, this parameter causes
- the main <b class="command">nmbd</b> process to not daemonize,
- i.e. double-fork and disassociate with the terminal.
- Child processes are still created as normal to service
- each connection request, but the main process does not
- exit. This operation mode is suitable for running
- <b class="command">nmbd</b> under process supervisors such
- as <b class="command">supervise</b> and <b class="command">svscan</b>
- from Daniel J. Bernstein's <b class="command">daemontools</b>
- package, or the AIX process monitor.
- </p></dd><dt><span class="term">-S</span></dt><dd><p>If specified, this parameter causes
- <b class="command">nmbd</b> to log to standard output rather
- than a file.</p></dd><dt><span class="term">-i</span></dt><dd><p>If this parameter is specified it causes the
- server to run "interactively", not as a daemon, even if the
- server is executed on the command line of a shell. Setting this
- parameter negates the implicit daemon mode when run from the
- command line. <b class="command">nmbd</b> also logs to standard
- output, as if the <tt class="constant">-S</tt> parameter had been
- given. </p></dd><dt><span class="term">-h|--help</span></dt><dd><p>Print a summary of command line options.
-</p></dd><dt><span class="term">-H &lt;filename&gt;</span></dt><dd><p>NetBIOS lmhosts file. The lmhosts
- file is a list of NetBIOS names to IP addresses that
- is loaded by the nmbd server and used via the name
- resolution mechanism <a class="indexterm" name="id2796624"></a><i class="parameter"><tt>name resolve order</tt></i> described in <a href="smb.conf.5.html"><span class="citerefentry"><span class="refentrytitle">smb.conf</span>(5)</span></a> to resolve any
- NetBIOS name queries needed by the server. Note
- that the contents of this file are <span class="emphasis"><em>NOT</em></span>
- used by <b class="command">nmbd</b> to answer any name queries.
- Adding a line to this file affects name NetBIOS resolution
- from this host <span class="emphasis"><em>ONLY</em></span>.</p><p>The default path to this file is compiled into
- Samba as part of the build process. Common defaults
- are <tt class="filename">/usr/local/samba/lib/lmhosts</tt>,
- <tt class="filename">/usr/samba/lib/lmhosts</tt> or
- <tt class="filename">/etc/samba/lmhosts</tt>. See the <a href="lmhosts.5.html"><span class="citerefentry"><span class="refentrytitle">lmhosts</span>(5)</span></a> man page for details on the contents of this file.</p></dd><dt><span class="term">-V</span></dt><dd><p>Prints the program version number.
-</p></dd><dt><span class="term">-s &lt;configuration file&gt;</span></dt><dd><p>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 <tt class="filename">smb.conf</tt> for more information.
-The default configuration file name is determined at
-compile time.</p></dd><dt><span class="term">-d|--debug=debuglevel</span></dt><dd><p><i class="replaceable"><tt>debuglevel</tt></i> is an integer
-from 0 to 10. The default value if this parameter is
-not specified is zero.</p><p>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.</p><p>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.</p><p>Note that specifying this parameter here will
-override the <a class="indexterm" name="id2799060"></a><i class="parameter"><tt>log level</tt></i> parameter
-in the <tt class="filename">smb.conf</tt> file.</p></dd><dt><span class="term">-l|--logfile=logbasename</span></dt><dd><p>File name for log/debug files. The extension
-<tt class="constant">".client"</tt> will be appended. The log file is
-never removed by the client.
-</p></dd><dt><span class="term">-p &lt;UDP port number&gt;</span></dt><dd><p>UDP port number is a positive integer value.
- This option changes the default UDP port number (normally 137)
- that <b class="command">nmbd</b> responds to name queries on. Don't
- use this option unless you are an expert, in which case you
- won't need help!</p></dd></dl></div></div><div class="refsect1" lang="en"><h2>FILES</h2><div class="variablelist"><dl><dt><span class="term"><tt class="filename">/etc/inetd.conf</tt></span></dt><dd><p>If the server is to be run by the
- <b class="command">inetd</b> meta-daemon, this file
- must contain suitable startup information for the
- meta-daemon.
- </p></dd><dt><span class="term"><tt class="filename">/etc/rc</tt></span></dt><dd><p>or whatever initialization script your
- system uses).</p><p>If running the server as a daemon at startup,
- this file will need to contain an appropriate startup
- sequence for the server.</p></dd><dt><span class="term"><tt class="filename">/etc/services</tt></span></dt><dd><p>If running the server via the
- meta-daemon <b class="command">inetd</b>, this file
- must contain a mapping of service name (e.g., netbios-ssn)
- to service port (e.g., 139) and protocol type (e.g., tcp).
- </p></dd><dt><span class="term"><tt class="filename">/usr/local/samba/lib/smb.conf</tt></span></dt><dd><p>This is the default location of
- the <a href="smb.conf.5.html"><span class="citerefentry"><span class="refentrytitle">smb.conf</span>(5)</span></a> server
- configuration file. Other common places that systems
- install this file are <tt class="filename">/usr/samba/lib/smb.conf</tt>
- and <tt class="filename">/etc/samba/smb.conf</tt>.</p><p>When run as a WINS server (see the
- <a class="indexterm" name="id2799269"></a><i class="parameter"><tt>wins support</tt></i>
- parameter in the <a href="smb.conf.5.html"><span class="citerefentry"><span class="refentrytitle">smb.conf</span>(5)</span></a> man page),
- <b class="command">nmbd</b>
- will store the WINS database in the file <tt class="filename">wins.dat</tt>
- in the <tt class="filename">var/locks</tt> directory configured under
- wherever Samba was configured to install itself.</p><p>If <b class="command">nmbd</b> is acting as a <span class="emphasis"><em>
- browse master</em></span> (see the <a class="indexterm" name="id2799331"></a><i class="parameter"><tt>local master</tt></i>
- parameter in the <a href="smb.conf.5.html"><span class="citerefentry"><span class="refentrytitle">smb.conf</span>(5)</span></a> man page, <b class="command">nmbd</b>
- will store the browsing database in the file <tt class="filename">browse.dat
- </tt> in the <tt class="filename">var/locks</tt> directory
- configured under wherever Samba was configured to install itself.
- </p></dd></dl></div></div><div class="refsect1" lang="en"><h2>SIGNALS</h2><p>To shut down an <b class="command">nmbd</b> process it is recommended
- that SIGKILL (-9) <span class="emphasis"><em>NOT</em></span> be used, except as a last
- resort, as this may leave the name database in an inconsistent state.
- The correct way to terminate <b class="command">nmbd</b> is to send it
- a SIGTERM (-15) signal and wait for it to die on its own.</p><p><b class="command">nmbd</b> will accept SIGHUP, which will cause
- it to dump out its namelists into the file <tt class="filename">namelist.debug
- </tt> in the <tt class="filename">/usr/local/samba/var/locks</tt>
- directory (or the <tt class="filename">var/locks</tt> directory configured
- under wherever Samba was configured to install itself). This will also
- cause <b class="command">nmbd</b> to dump out its server database in
- the <tt class="filename">log.nmb</tt> file.</p><p>The debug log level of nmbd may be raised or lowered
- using <a href="smbcontrol.1.html"><span class="citerefentry"><span class="refentrytitle">smbcontrol</span>(1)</span></a> (SIGUSR[1|2] signals
- are no longer used since Samba 2.2). This is to allow
- transient problems to be diagnosed, whilst still running
- at a normally low log level.</p></div><div class="refsect1" lang="en"><h2>VERSION</h2><p>This man page is correct for version 3.0 of
- the Samba suite.</p></div><div class="refsect1" lang="en"><h2>SEE ALSO</h2><p>
- <a href="inetd.8.html"><span class="citerefentry"><span class="refentrytitle">inetd</span>(8)</span></a>, <a href="smbd.8.html"><span class="citerefentry"><span class="refentrytitle">smbd</span>(8)</span></a>, <a href="smb.conf.5.html"><span class="citerefentry"><span class="refentrytitle">smb.conf</span>(5)</span></a>, <a href="smbclient.1.html"><span class="citerefentry"><span class="refentrytitle">smbclient</span>(1)</span></a>, <a href="testparm.1.html"><span class="citerefentry"><span class="refentrytitle">testparm</span>(1)</span></a>, <a href="testprns.1.html"><span class="citerefentry"><span class="refentrytitle">testprns</span>(1)</span></a>, and the Internet
- RFC's <tt class="filename">rfc1001.txt</tt>, <tt class="filename">rfc1002.txt</tt>.
- In addition the CIFS (formerly SMB) specification is available
- as a link from the Web page <ulink url="http://samba.org/cifs/">
- http://samba.org/cifs/</ulink>.</p></div><div class="refsect1" lang="en"><h2>AUTHOR</h2><p>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.</p><p>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 <ulink url="ftp://ftp.icce.rug.nl/pub/unix/">
- ftp://ftp.icce.rug.nl/pub/unix/</ulink>) 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.</p></div></div></body></html>