114 lines
4.0 KiB
Groff
114 lines
4.0 KiB
Groff
.\" $NetBSD: rpc.lockd.8,v 1.6 2002/02/02 01:42:45 wiz 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. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. 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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.\"
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.Dd September 24, 1995
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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 g Ar grace period
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.Sh DESCRIPTION
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The
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.Nm
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daemon provides monitored and unmonitored file and record locking services
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in an NFS environment. 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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:
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.Bl -tag -width Ds
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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. These messages are logged with level
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LOG_DEBUG and facility LOG_DAEMON. Specifying a debug_level of 1 results
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in the generation of one log line per protocol operation. 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 g
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The
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.Fl g
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option allow to specify the grace period, in seconds. 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. Default is 30 seconds.
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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 LOG_ERR and facility LOG_DAEMON.
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.Pp
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The
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.Nm
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daemon 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 X/Open CAE Specification
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C218, "Protocols for X/Open PC Interworking: XNFS, Issue 4", ISBN 1 872630 66 9
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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 4 .
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.Sh BUGS
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The current implementation provides only the server side of the protocol
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(i.e. clients running other OS types can establish locks on a
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.Nx
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fileserver,
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but there is currently no means for a
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.Nx
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client to establish locks).
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.Pp
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The current implementation serialises locks requests that could be shared.
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