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RPC.LOCKD(8)		FreeBSD	System Manager's Manual		  RPC.LOCKD(8)

NAME
     rpc.lockd -- NFS file locking daemon

SYNOPSIS
     rpc.lockd [-d debug_level]	[-F] [-g grace period] [-h bindip] [-p port]

DESCRIPTION
     The rpc.lockd utility provides monitored and unmonitored file and record
     locking services in an NFS	environment.  To monitor the status of hosts
     requesting	locks, the locking daemon typically operates in	conjunction
     with rpc.statd(8).

     Options and operands available for	rpc.lockd:

     -d	     The -d option causes debugging information	to be written to sys-
	     log, recording all	RPC transactions to the	daemon.	 These mes-
	     sages are logged with level LOG_DEBUG and facility	LOG_DAEMON.
	     Specifying	a debug_level of 1 results in the generation of	one
	     log line per protocol operation.  Higher debug levels can be
	     specified,	causing	display	of operation arguments and internal
	     operations	of the daemon.

     -F	     Run rpc.lockd in the foreground, rather than going	into daemon
	     mode.  This is useful if some other process uses fork(2) and
	     exec(3) to	run rpc.lockd, and wants to monitor when and how it
	     exits.

     -g	     The -g option allow to specify the	grace period, in seconds.
	     During the	grace period rpc.lockd only accepts requests from
	     hosts which are reinitialising locks which	existed	before the
	     server restart.  Default is 30 seconds.

     -h	bindip
	     Specify specific IP addresses to bind to.	This option may	be
	     specified multiple	times.	If no -h option	is specified,
	     rpc.lockd will bind to INADDR_ANY.	 Note that when	specifying IP
	     addresses with -h,	rpc.lockd will automatically add 127.0.0.1 and
	     if	IPv6 is	enabled, ::1 to	the list.

     -p	     The -p option allow to force the daemon to	bind to	the specified
	     port, for both AF_INET and	AF_INET6 address families.

     Error conditions are logged to syslog, irrespective of the	debug level,
     using log level LOG_ERR and facility LOG_DAEMON.

     The rpc.lockd utility must	NOT be invoked by inetd(8) because the proto-
     col assumes that the daemon will run from system start time.  Instead, it
     should be configured in rc.conf(5)	to run at system startup.

FILES
     /usr/include/rpcsvc/nlm_prot.x  RPC protocol specification	for the	net-
				     work lock manager protocol.

SEE ALSO
     syslog(3),	rc.conf(5), rpc.statd(8)

STANDARDS
     The implementation	is based on the	specification in "Protocols for	X/Open
     PC	Interworking: XNFS, Issue 4", X/Open CAE Specification C218, ISBN 1
     872630 66 9.

HISTORY
     A version of rpc.lockd appeared in	SunOS 4.

BUGS
     The current implementation	serialises locks requests that could be
     shared.

FreeBSD	13.0		       November	21, 2019		  FreeBSD 13.0
NAME | SYNOPSIS | DESCRIPTION | FILES | SEE ALSO | STANDARDS | HISTORY | BUGS

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