1 .\" $NetBSD: rpc.lockd.8,v 1.5 2000/06/09 18:51:47 cgd Exp $
3 .\" Copyright (c) 1995 A.R.Gordon, andrew.gordon@net-tel.co.uk
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30 .\" $FreeBSD: src/usr.sbin/rpc.lockd/rpc.lockd.8,v 1.18 2007/11/02 14:51:53 matteo Exp $
31 .\" $DragonFly: src/usr.sbin/rpc.lockd/rpc.lockd.8,v 1.4 2006/02/17 19:40:23 swildner Exp $
38 .Nd NFS file locking daemon
41 .Op Fl d Ar debug_level
42 .Op Fl g Ar grace period
48 utility provides monitored and unmonitored file and record locking services
49 in an NFS environment.
50 To monitor the status of hosts requesting locks,
51 the locking daemon typically operates in conjunction
55 Options and operands available for
57 .Bl -tag -width indent
61 option causes debugging information to be written to syslog, recording
62 all RPC transactions to the daemon.
63 These messages are logged with level
70 in the generation of one log line per protocol operation.
72 debug levels can be specified, causing display of operation arguments
73 and internal operations of the daemon.
77 option allow to specify the
80 During the grace period
82 only accepts requests from hosts which are reinitialising locks which
83 existed before the server restart.
84 Default is 30 seconds.
86 Specify specific IP addresses to bind to.
87 This option may be specified multiple times.
94 Note that when specifying IP addresses with
97 will automatically add
99 and if IPv6 is enabled,
105 option allow to force the daemon to bind to the specified
107 for both AF_INET and AF_INET6 address families.
110 Error conditions are logged to syslog, irrespective of the debug level,
118 utility must NOT be invoked by
120 because the protocol assumes that the daemon will run from system start time.
121 Instead, it should be configured in
123 to run at system startup.
125 .Bl -tag -width /usr/include/rpcsvc/nlm_prot.x -compact
126 .It Pa /usr/include/rpcsvc/nlm_prot.x
127 RPC protocol specification for the network lock manager protocol.
134 The implementation is based on the specification in
136 .%B "X/Open CAE Specification C218"
137 .%T "Protocols for X/Open PC Interworking: XNFS, Issue 4"
138 .%O ISBN 1 872630 66 9
147 The current implementation provides only the server side of the protocol
148 (i.e., clients running other OS types can establish locks on a
151 but there is currently no means for a
153 client to establish locks).
155 The current implementation serialises locks requests that could be shared.