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36 .Dd September 24, 1995
41 .Nd NFS file locking daemon
44 .Op Fl d Ar debug_level
45 .Op Fl g Ar grace period
49 utility provides monitored and unmonitored file and record locking services
50 in an NFS environment.
51 To monitor the status of hosts requesting locks,
52 the locking daemon typically operates in conjunction
56 Options and operands available for
58 .Bl -tag -width indent
62 option causes debugging information to be written to syslog, recording
63 all RPC transactions to the daemon.
64 These messages are logged with level
71 in the generation of one log line per protocol operation.
73 debug levels can be specified, causing display of operation arguments
74 and internal operations of the daemon.
78 option allow to specify the
81 During the grace period
83 only accepts requests from hosts which are reinitialising locks which
84 existed before the server restart.
85 Default is 30 seconds.
88 Error conditions are logged to syslog, irrespective of the debug level,
96 utility must NOT be invoked by
98 because the protocol assumes that the daemon will run from system start time.
99 Instead, it should be configured in
101 to run at system startup.
103 .Bl -tag -width /usr/include/rpcsvc/nlm_prot.x -compact
104 .It Pa /usr/include/rpcsvc/nlm_prot.x
105 RPC protocol specification for the network lock manager protocol.
112 The implementation is based on the specification in
114 .%B "X/Open CAE Specification C218"
115 .%T "Protocols for X/Open PC Interworking: XNFS, Issue 4"
116 .%O ISBN 1 872630 66 9
125 The current implementation serialises locks requests that could be shared.