| 1 | '\" t
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| 2 | .\" Title: nmbd
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| 3 | .\" Author: [see the "AUTHOR" section]
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| 4 | .\" Generator: DocBook XSL Stylesheets v1.76.1 <http://docbook.sf.net/>
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| 5 | .\" Date: 09/18/2013
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| 6 | .\" Manual: System Administration tools
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| 7 | .\" Source: Samba 3.6
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| 8 | .\" Language: English
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| 9 | .\"
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| 10 | .TH "NMBD" "8" "09/18/2013" "Samba 3\&.6" "System Administration tools"
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| 11 | .\" -----------------------------------------------------------------
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| 12 | .\" * Define some portability stuff
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| 13 | .\" -----------------------------------------------------------------
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| 14 | .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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| 15 | .\" http://bugs.debian.org/507673
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| 16 | .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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| 17 | .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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| 18 | .ie \n(.g .ds Aq \(aq
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| 19 | .el .ds Aq '
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| 20 | .\" -----------------------------------------------------------------
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| 21 | .\" * set default formatting
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| 22 | .\" -----------------------------------------------------------------
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| 23 | .\" disable hyphenation
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| 24 | .nh
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| 25 | .\" disable justification (adjust text to left margin only)
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| 26 | .ad l
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| 27 | .\" -----------------------------------------------------------------
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| 28 | .\" * MAIN CONTENT STARTS HERE *
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| 29 | .\" -----------------------------------------------------------------
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| 30 | .SH "NAME"
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| 31 | nmbd \- NetBIOS name server to provide NetBIOS over IP naming services to clients
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| 32 | .SH "SYNOPSIS"
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| 33 | .HP \w'\ 'u
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| 34 | nmbd [\-D] [\-F] [\-S] [\-a] [\-i] [\-o] [\-h] [\-V] [\-d\ <debug\ level>] [\-H\ <lmhosts\ file>] [\-l\ <log\ directory>] [\-p\ <port\ number>] [\-s\ <configuration\ file>]
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| 35 | .SH "DESCRIPTION"
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| 36 | .PP
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| 37 | This program is part of the
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| 38 | \fBsamba\fR(7)
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| 39 | suite\&.
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| 40 | .PP
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| 41 | nmbd
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| 42 | 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\&.
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| 43 | .PP
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| 44 | 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\&.
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| 45 | .PP
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| 46 | Amongst other services,
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| 47 | nmbd
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| 48 | 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 by the
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| 49 | \m[blue]\fBnetbios name\fR\m[]
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| 50 | in
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| 51 | smb\&.conf\&. Thus
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| 52 | nmbd
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| 53 | will reply to broadcast queries for its own name(s)\&. Additional names for
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| 54 | nmbd
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| 55 | to respond on can be set via parameters in the
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| 56 | \fBsmb.conf\fR(5)
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| 57 | configuration file\&.
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| 58 | .PP
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| 59 | nmbd
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| 60 | 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\&.
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| 61 | .PP
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| 62 | In addition,
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| 63 | nmbd
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| 64 | 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\&.
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| 65 | .SH "OPTIONS"
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| 66 | .PP
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| 67 | \-D
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| 68 | .RS 4
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| 69 | If specified, this parameter causes
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| 70 | nmbd
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| 71 | to operate as a daemon\&. That is, it detaches itself and runs in the background, fielding requests on the appropriate port\&. By default,
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| 72 | nmbd
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| 73 | will operate as a daemon if launched from a command shell\&. nmbd can also be operated from the
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| 74 | inetd
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| 75 | meta\-daemon, although this is not recommended\&.
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| 76 | .RE
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| 77 | .PP
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| 78 | \-F
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| 79 | .RS 4
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| 80 | If specified, this parameter causes the main
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| 81 | nmbd
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| 82 | 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
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| 83 | nmbd
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| 84 | under process supervisors such as
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| 85 | supervise
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| 86 | and
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| 87 | svscan
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| 88 | from Daniel J\&. Bernstein\*(Aqs
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| 89 | daemontools
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| 90 | package, or the AIX process monitor\&.
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| 91 | .RE
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| 92 | .PP
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| 93 | \-S
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| 94 | .RS 4
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| 95 | If specified, this parameter causes
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| 96 | nmbd
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| 97 | to log to standard output rather than a file\&.
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| 98 | .RE
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| 99 | .PP
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| 100 | \-i
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| 101 | .RS 4
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| 102 | 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\&.
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| 103 | nmbd
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| 104 | also logs to standard output, as if the
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| 105 | \fB\-S\fR
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| 106 | parameter had been given\&.
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| 107 | .RE
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| 108 | .PP
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| 109 | \-h|\-\-help
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| 110 | .RS 4
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| 111 | Print a summary of command line options\&.
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| 112 | .RE
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| 113 | .PP
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| 114 | \-H <filename>
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| 115 | .RS 4
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| 116 | 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
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| 117 | \m[blue]\fBname resolve order\fR\m[]
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| 118 | described in
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| 119 | \fBsmb.conf\fR(5)
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| 120 | to resolve any NetBIOS name queries needed by the server\&. Note that the contents of this file are
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| 121 | \fINOT\fR
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| 122 | used by
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| 123 | nmbd
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| 124 | to answer any name queries\&. Adding a line to this file affects name NetBIOS resolution from this host
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| 125 | \fIONLY\fR\&.
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| 126 | .sp
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| 127 | The default path to this file is compiled into Samba as part of the build process\&. Common defaults are
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| 128 | /usr/local/samba/lib/lmhosts,
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| 129 | /usr/samba/lib/lmhosts
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| 130 | or
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| 131 | /etc/samba/lmhosts\&. See the
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| 132 | \fBlmhosts\fR(5)
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| 133 | man page for details on the contents of this file\&.
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| 134 | .RE
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| 135 | .PP
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| 136 | \-d|\-\-debuglevel=level
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| 137 | .RS 4
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| 138 | \fIlevel\fR
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| 139 | is an integer from 0 to 10\&. The default value if this parameter is not specified is 0\&.
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| 140 | .sp
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| 141 | 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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| 142 | .sp
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| 143 | 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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| 144 | .sp
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| 145 | Note that specifying this parameter here will override the
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| 146 | \m[blue]\fBlog level\fR\m[]
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| 147 | parameter in the
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| 148 | smb\&.conf
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| 149 | file\&.
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| 150 | .RE
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| 151 | .PP
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| 152 | \-V|\-\-version
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| 153 | .RS 4
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| 154 | Prints the program version number\&.
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| 155 | .RE
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| 156 | .PP
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| 157 | \-s|\-\-configfile <configuration file>
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| 158 | .RS 4
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| 159 | 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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| 160 | smb\&.conf
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| 161 | for more information\&. The default configuration file name is determined at compile time\&.
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| 162 | .RE
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| 163 | .PP
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| 164 | \-l|\-\-log\-basename=logdirectory
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| 165 | .RS 4
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| 166 | Base directory name for log/debug files\&. The extension
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| 167 | \fB"\&.progname"\fR
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| 168 | will be appended (e\&.g\&. log\&.smbclient, log\&.smbd, etc\&.\&.\&.)\&. The log file is never removed by the client\&.
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| 169 | .RE
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| 170 | .PP
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| 171 | \-p <UDP port number>
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| 172 | .RS 4
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| 173 | UDP port number is a positive integer value\&. This option changes the default UDP port number (normally 137) that
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| 174 | nmbd
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| 175 | responds to name queries on\&. Don\*(Aqt use this option unless you are an expert, in which case you won\*(Aqt need help!
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| 176 | .RE
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| 177 | .SH "FILES"
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| 178 | .PP
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| 179 | /etc/inetd\&.conf
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| 180 | .RS 4
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| 181 | If the server is to be run by the
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| 182 | inetd
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| 183 | meta\-daemon, this file must contain suitable startup information for the meta\-daemon\&.
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| 184 | .RE
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| 185 | .PP
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| 186 | /etc/rc
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| 187 | .RS 4
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| 188 | or whatever initialization script your system uses)\&.
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| 189 | .sp
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| 190 | If running the server as a daemon at startup, this file will need to contain an appropriate startup sequence for the server\&.
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| 191 | .RE
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| 192 | .PP
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| 193 | /etc/services
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| 194 | .RS 4
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| 195 | If running the server via the meta\-daemon
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| 196 | inetd, 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)\&.
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| 197 | .RE
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| 198 | .PP
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| 199 | /usr/local/samba/lib/smb\&.conf
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| 200 | .RS 4
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| 201 | This is the default location of the
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| 202 | \fBsmb.conf\fR(5)
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| 203 | server configuration file\&. Other common places that systems install this file are
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| 204 | /usr/samba/lib/smb\&.conf
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| 205 | and
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| 206 | /etc/samba/smb\&.conf\&.
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| 207 | .sp
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| 208 | When run as a WINS server (see the
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| 209 | \m[blue]\fBwins support\fR\m[]
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| 210 | parameter in the
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| 211 | \fBsmb.conf\fR(5)
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| 212 | man page),
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| 213 | nmbd
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| 214 | will store the WINS database in the file
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| 215 | wins\&.dat
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| 216 | in the
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| 217 | var/locks
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| 218 | directory configured under wherever Samba was configured to install itself\&.
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| 219 | .sp
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| 220 | If
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| 221 | nmbd
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| 222 | is acting as a
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| 223 | \fI browse master\fR
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| 224 | (see the
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| 225 | \m[blue]\fBlocal master\fR\m[]
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| 226 | parameter in the
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| 227 | \fBsmb.conf\fR(5)
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| 228 | man page,
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| 229 | nmbd
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| 230 | will store the browsing database in the file
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| 231 | browse\&.dat
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| 232 | in the
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| 233 | var/locks
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| 234 | directory configured under wherever Samba was configured to install itself\&.
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| 235 | .RE
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| 236 | .SH "SIGNALS"
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| 237 | .PP
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| 238 | To shut down an
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| 239 | nmbd
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| 240 | process it is recommended that SIGKILL (\-9)
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| 241 | \fINOT\fR
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| 242 | be used, except as a last resort, as this may leave the name database in an inconsistent state\&. The correct way to terminate
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| 243 | nmbd
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| 244 | is to send it a SIGTERM (\-15) signal and wait for it to die on its own\&.
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| 245 | .PP
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| 246 | nmbd
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| 247 | will accept SIGHUP, which will cause it to dump out its namelists into the file
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| 248 | namelist\&.debug
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| 249 | in the
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| 250 | /usr/local/samba/var/locks
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| 251 | directory (or the
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| 252 | var/locks
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| 253 | directory configured under wherever Samba was configured to install itself)\&. This will also cause
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| 254 | nmbd
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| 255 | to dump out its server database in the
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| 256 | log\&.nmb
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| 257 | file\&.
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| 258 | .PP
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| 259 | The debug log level of nmbd may be raised or lowered using
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| 260 | \fBsmbcontrol\fR(1)
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| 261 | (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\&.
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| 262 | .SH "VERSION"
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| 263 | .PP
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| 264 | This man page is correct for version 3 of the Samba suite\&.
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| 265 | .SH "SEE ALSO"
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| 266 | .PP
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| 267 |
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| 268 | \fBinetd\fR(8),
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| 269 | \fBsmbd\fR(8),
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| 270 | \fBsmb.conf\fR(5),
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| 271 | \fBsmbclient\fR(1),
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| 272 | \fBtestparm\fR(1),
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| 273 | \fBtestprns\fR(1), and the Internet RFC\*(Aqs
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| 274 | rfc1001\&.txt,
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| 275 | rfc1002\&.txt\&. In addition the CIFS (formerly SMB) specification is available as a link from the Web page
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| 276 | http://samba\&.org/cifs/\&.
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| 277 | .SH "AUTHOR"
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| 278 | .PP
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| 279 | 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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| 280 | .PP
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| 281 | 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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| 282 | 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\&.
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