90e43b446d
foreground. This allows a separate process to monitor when and how those programs exit. That process can then restart them if needed. Submitted by: Alex Burlyga Reviewed by: bcr, imp MFC after: 1 week Sponsored by: Panasas Differential Revision: https://reviews.freebsd.org/D22474
159 lines
4.3 KiB
Groff
159 lines
4.3 KiB
Groff
.\" $NetBSD: rpc.lockd.8,v 1.5 2000/06/09 18:51:47 cgd Exp $
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.\"
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.\" Copyright (c) 1995 A.R.Gordon, andrew.gordon@net-tel.co.uk
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd November 21, 2019
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.Dt RPC.LOCKD 8
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.Os
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.Sh NAME
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.Nm rpc.lockd
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.Nd NFS file locking daemon
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.Sh SYNOPSIS
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.Nm
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.Op Fl d Ar debug_level
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.Op Fl F
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.Op Fl g Ar grace period
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.Op Fl h Ar bindip
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.Op Fl p Ar port
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.Sh DESCRIPTION
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The
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.Nm
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utility provides monitored and unmonitored file and record locking services
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in an NFS environment.
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To monitor the status of hosts requesting locks,
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the locking daemon typically operates in conjunction
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with
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.Xr rpc.statd 8 .
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.Pp
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Options and operands available for
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.Nm :
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.Bl -tag -width indent
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.It Fl d
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The
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.Fl d
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option causes debugging information to be written to syslog, recording
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all RPC transactions to the daemon.
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These messages are logged with level
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.Dv LOG_DEBUG
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and facility
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.Dv LOG_DAEMON .
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Specifying a
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.Ar debug_level
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of 1 results
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in the generation of one log line per protocol operation.
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Higher
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debug levels can be specified, causing display of operation arguments
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and internal operations of the daemon.
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.It Fl F
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Run
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.Nm
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in the foreground, rather than going into daemon mode.
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This is useful if some other process uses
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.Xr fork 2
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and
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.Xr exec 3
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to run
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.Nm ,
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and wants to monitor when and how it exits.
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.It Fl g
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The
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.Fl g
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option allow to specify the
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.Ar grace period ,
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in seconds.
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During the grace period
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.Nm
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only accepts requests from hosts which are reinitialising locks which
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existed before the server restart.
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Default is 30 seconds.
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.It Fl h Ar bindip
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Specify specific IP addresses to bind to.
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This option may be specified multiple times.
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If no
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.Fl h
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option is specified,
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.Nm
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will bind to
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.Dv INADDR_ANY .
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Note that when specifying IP addresses with
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.Fl h ,
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.Nm
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will automatically add
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.Li 127.0.0.1
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and if IPv6 is enabled,
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.Li ::1
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to the list.
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.It Fl p
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The
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.Fl p
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option allow to force the daemon to bind to the specified
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.Ar port ,
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for both AF_INET and AF_INET6 address families.
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.El
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.Pp
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Error conditions are logged to syslog, irrespective of the debug level,
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using log level
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.Dv LOG_ERR
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and facility
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.Dv LOG_DAEMON .
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.Pp
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The
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.Nm
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utility must NOT be invoked by
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.Xr inetd 8
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because the protocol assumes that the daemon will run from system start time.
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Instead, it should be configured in
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.Xr rc.conf 5
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to run at system startup.
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.Sh FILES
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.Bl -tag -width /usr/include/rpcsvc/nlm_prot.x -compact
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.It Pa /usr/include/rpcsvc/nlm_prot.x
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RPC protocol specification for the network lock manager protocol.
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.El
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.Sh SEE ALSO
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.Xr syslog 3 ,
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.Xr rc.conf 5 ,
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.Xr rpc.statd 8
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.Sh STANDARDS
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The implementation is based on the specification in
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.Rs
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.%B "X/Open CAE Specification C218"
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.%T "Protocols for X/Open PC Interworking: XNFS, Issue 4"
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.%O ISBN 1 872630 66 9
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.Re
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.Sh HISTORY
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A version of
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.Nm
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appeared in
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.Tn SunOS
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4.
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.Sh BUGS
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The current implementation serialises locks requests that could be shared.
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