.\" $NetBSD: rpc.lockd.8,v 1.5 2000/06/09 18:51:47 cgd Exp $ .\" $FreeBSD: src/usr.sbin/rpc.lockd/rpc.lockd.8,v 1.14 2002/07/14 14:45:36 charnier Exp $ .\" .\" Copyright (c) 1995 A.R.Gordon, email@example.com .\" All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" 3. All advertising materials mentioning features or use of this software .\" must display the following acknowledgement: .\" This product includes software developed by the University of .\" California, Berkeley and its contributors. .\" 4. Neither the name of the University nor the names of its contributors .\" may be used to endorse or promote products derived from this software .\" without specific prior written permission. .\" .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" .\" .Dd September 24, 1995 .Dt RPC.LOCKD 8 .Os .Sh NAME .Nm rpc.lockd .Nd NFS file locking daemon .Sh SYNOPSIS .Nm .Op Fl d Ar debug_level .Op Fl g Ar grace period .Op Fl x Ar statd cache period .Sh DESCRIPTION The .Nm 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 .Xr rpc.statd 8 . .Pp Options and operands available for .Nm : .Bl -tag -width indent .It Fl d The .Fl d option causes debugging information to be written to syslog, recording all RPC transactions to the daemon. These messages are logged with level .Dv LOG_DEBUG and facility .Dv LOG_DAEMON . Specifying a .Ar 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. .It Fl g The .Fl g option allow to specify the .Ar grace period , in seconds. During the grace period .Nm only accepts requests from hosts which are reinitialising locks which existed before the server restart. Default is 30 seconds. .It Fl w The .Fl w option tells .Nm to wait until the first client locking request is made before starting the locking daemon(s). This may be used on NFS clients to defer starting the NFS locking daemons until it is known that they will be needed. (Note: .Xr rpc.statd 8 will also be started if it isn't already running) .It Fl x The .Fl x option tells rpc.lockd how long to cache state records for contacting client .Xr rpc.statd 8 implementations. Setting it to zero will disable the cache which will make lock and unlock requests from a single client more expensive because of additional interaction with the client's statd. The default cache time is 60 seconds. .El .Pp Error conditions are logged to syslog, irrespective of the debug level, using log level .Dv LOG_ERR and facility .Dv LOG_DAEMON . .Pp The .Nm utility must NOT be invoked by .Xr inetd 8 because the protocol assumes that the daemon will run from system start time. Instead, it should be configured in .Xr rc.conf 5 to run at system startup. .Sh FILES .Bl -tag -width /usr/include/rpcsvc/nlm_prot.x -compact .It Pa /usr/include/rpcsvc/nlm_prot.x RPC protocol specification for the network lock manager protocol. .El .Sh SEE ALSO .Xr syslog 3 , .Xr rc.conf 5 , .Xr rpc.statd 8 .Sh BUGS The current implementation serialises locks requests that could be shared. .Sh STANDARDS The implementation is based on the specification in .Rs .%B "X/Open CAE Specification C218" .%T "Protocols for X/Open PC Interworking: XNFS, Issue 4" .%O ISBN 1 872630 66 9 .Re .Sh HISTORY A version of .Nm appeared in .Tn SunOS 4.