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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34 .\" $FreeBSD: src/usr.sbin/rpc.lockd/rpc.lockd.8,v 1.18 2007/11/02 14:51:53 matteo Exp $
35 .\" $DragonFly: src/usr.sbin/rpc.lockd/rpc.lockd.8,v 1.4 2006/02/17 19:40:23 swildner Exp $
42 .Nd NFS file locking daemon
45 .Op Fl d Ar debug_level
46 .Op Fl g Ar grace period
52 utility provides monitored and unmonitored file and record locking services
53 in an NFS environment.
54 To monitor the status of hosts requesting locks,
55 the locking daemon typically operates in conjunction
59 Options and operands available for
61 .Bl -tag -width indent
65 option causes debugging information to be written to syslog, recording
66 all RPC transactions to the daemon.
67 These messages are logged with level
74 in the generation of one log line per protocol operation.
76 debug levels can be specified, causing display of operation arguments
77 and internal operations of the daemon.
81 option allow to specify the
84 During the grace period
86 only accepts requests from hosts which are reinitialising locks which
87 existed before the server restart.
88 Default is 30 seconds.
90 Specify specific IP addresses to bind to.
91 This option may be specified multiple times.
98 Note that when specifying IP addresses with
101 will automatically add
103 and if IPv6 is enabled,
109 option allow to force the daemon to bind to the specified
111 for both AF_INET and AF_INET6 address families.
114 Error conditions are logged to syslog, irrespective of the debug level,
122 utility must NOT be invoked by
124 because the protocol assumes that the daemon will run from system start time.
125 Instead, it should be configured in
127 to run at system startup.
129 .Bl -tag -width /usr/include/rpcsvc/nlm_prot.x -compact
130 .It Pa /usr/include/rpcsvc/nlm_prot.x
131 RPC protocol specification for the network lock manager protocol.
138 The implementation is based on the specification in
140 .%B "X/Open CAE Specification C218"
141 .%T "Protocols for X/Open PC Interworking: XNFS, Issue 4"
142 .%O ISBN 1 872630 66 9
151 The current implementation provides only the server side of the protocol
152 (i.e., clients running other OS types can establish locks on a
155 but there is currently no means for a
157 client to establish locks).
159 The current implementation serialises locks requests that could be shared.