mirror of https://gitee.com/openkylin/samba.git
295 lines
10 KiB
Groff
295 lines
10 KiB
Groff
'\" t
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.\" Title: nmbd
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.\" Author: [see the "AUTHOR" section]
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.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
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.\" Date: 01/28/2020
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.\" Manual: System Administration tools
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.\" Source: Samba 4.11.6
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.\" Language: English
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.\"
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.TH "NMBD" "8" "01/28/2020" "Samba 4\&.11\&.6" "System Administration tools"
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.\" * Define some portability stuff
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" http://bugs.debian.org/507673
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.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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.\" * MAIN CONTENT STARTS HERE *
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.\" -----------------------------------------------------------------
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.SH "NAME"
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nmbd \- NetBIOS name server to provide NetBIOS over IP naming services to clients
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.SH "SYNOPSIS"
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.HP \w'\ 'u
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nmbd [\-D|\-\-daemon] [\-F|\-\-foreground] [\-S|\-\-log\-stdout] [\-i|\-\-interactive] [\-V] [\-d\ <debug\ level>] [\-H|\-\-hosts\ <lmhosts\ file>] [\-l\ <log\ directory>] [\-p|\-\-port\ <port\ number>] [\-s\ <configuration\ file>] [\-\-no\-process\-group]
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.SH "DESCRIPTION"
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.PP
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This program 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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nmbd
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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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.PP
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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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.PP
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Amongst other services,
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nmbd
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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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\m[blue]\fBnetbios name\fR\m[]
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in
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smb\&.conf\&. Thus
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nmbd
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will reply to broadcast queries for its own name(s)\&. Additional names for
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nmbd
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to respond on can be set via parameters in the
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\fBsmb.conf\fR(5)
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configuration file\&.
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.PP
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nmbd
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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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.PP
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In addition,
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nmbd
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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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.SH "OPTIONS"
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.PP
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\-D|\-\-daemon
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.RS 4
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If specified, this parameter causes
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nmbd
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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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nmbd
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will operate as a daemon if launched from a command shell\&. nmbd can also be operated from the
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inetd
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meta\-daemon, although this is not recommended\&.
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.RE
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.PP
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\-F|\-\-foreground
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.RS 4
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If specified, this parameter causes the main
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nmbd
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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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nmbd
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under process supervisors such as
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supervise
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and
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svscan
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from Daniel J\&. Bernstein\*(Aqs
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daemontools
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package, or the AIX process monitor\&.
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.RE
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.PP
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\-S|\-\-log\-stdout
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.RS 4
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If specified, this parameter causes
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nmbd
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to log to standard output rather than a file\&.
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.RE
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.PP
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\-i|\-\-interactive
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.RS 4
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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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nmbd
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also logs to standard output, as if the
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\fB\-S\fR
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parameter had been given\&.
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.RE
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.PP
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\-?|\-\-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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\-\-usage
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.RS 4
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Display brief usage message\&.
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.RE
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.PP
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\-H|\-\-hosts <filename>
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.RS 4
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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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\m[blue]\fBname resolve order\fR\m[]
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described in
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\fBsmb.conf\fR(5)
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to resolve any NetBIOS name queries needed by the server\&. Note that the contents of this file are
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\fINOT\fR
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used by
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nmbd
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to answer any name queries\&. Adding a line to this file affects name NetBIOS resolution from this host
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\fIONLY\fR\&.
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.sp
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The default path to this file is compiled into Samba as part of the build process\&. Common defaults are
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/usr/local/samba/lib/lmhosts,
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/usr/samba/lib/lmhosts
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or
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/etc/samba/lmhosts\&. See the
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\fBlmhosts\fR(5)
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man page for details on the contents of this file\&.
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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]\fBlog level\fR\m[]
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parameter in the
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smb\&.conf
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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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smb\&.conf
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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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\-\-option=<name>=<value>
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.RS 4
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Set the
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\fBsmb.conf\fR(5)
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option "<name>" to value "<value>" from the command line\&. This overrides compiled\-in defaults and options read from the configuration file\&.
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.RE
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.PP
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\-p|\-\-port <UDP port number>
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.RS 4
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UDP port number is a positive integer value\&. This option changes the default UDP port number (normally 137) that
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nmbd
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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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.RE
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.PP
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\-\-no\-process\-group
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.RS 4
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Do not create a new process group for nmbd\&.
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.RE
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.SH "FILES"
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.PP
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/etc/inetd\&.conf
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.RS 4
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If the server is to be run by the
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inetd
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meta\-daemon, this file must contain suitable startup information for the meta\-daemon\&.
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.RE
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.PP
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/etc/rc
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.RS 4
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or whatever initialization script your system uses)\&.
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.sp
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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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.RE
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.PP
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/etc/services
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.RS 4
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If running the server via the meta\-daemon
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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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.RE
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.PP
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/usr/local/samba/lib/smb\&.conf
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.RS 4
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This is the default location of the
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\fBsmb.conf\fR(5)
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server configuration file\&. Other common places that systems install this file are
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/usr/samba/lib/smb\&.conf
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and
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/etc/samba/smb\&.conf\&.
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.sp
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When run as a WINS server (see the
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\m[blue]\fBwins support\fR\m[]
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parameter in the
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\fBsmb.conf\fR(5)
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man page),
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nmbd
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will store the WINS database in the file
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wins\&.dat
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in the
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var/locks
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directory configured under wherever Samba was configured to install itself\&.
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.sp
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If
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nmbd
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is acting as a
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\fI browse master\fR
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(see the
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\m[blue]\fBlocal master\fR\m[]
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parameter in the
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\fBsmb.conf\fR(5)
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man page,
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nmbd
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will store the browsing database in the file
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browse\&.dat
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in the
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var/locks
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directory configured under wherever Samba was configured to install itself\&.
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.RE
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.SH "SIGNALS"
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.PP
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To shut down an
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nmbd
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process it is recommended that SIGKILL (\-9)
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\fINOT\fR
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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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nmbd
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is to send it a SIGTERM (\-15) signal and wait for it to die on its own\&.
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.PP
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nmbd
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will accept SIGHUP, which will cause it to dump out its namelists into the file
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namelist\&.debug
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in the
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/usr/local/samba/var/locks
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directory (or the
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var/locks
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directory configured under wherever Samba was configured to install itself)\&. This will also cause
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nmbd
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to dump out its server database in the
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log\&.nmb
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file\&.
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.PP
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The debug log level of nmbd may be raised or lowered using
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\fBsmbcontrol\fR(1)
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(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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.SH "VERSION"
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.PP
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This man page is part of version 4\&.11\&.6 of the Samba suite\&.
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.SH "SEE ALSO"
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.PP
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\fBinetd\fR(8),
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\fBsmbd\fR(8),
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\fBsmb.conf\fR(5),
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\fBsmbclient\fR(1),
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\fBtestparm\fR(1), and the Internet RFC\*(Aqs
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rfc1001\&.txt,
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rfc1002\&.txt\&. In addition the CIFS (formerly SMB) specification is available as a link from the Web page
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https://www\&.samba\&.org/cifs/\&.
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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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