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rpc.lockd man page

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RPC.LOCKD(8)            FreeBSD System Manager's Manual           RPC.LOCKD(8)


NAME

     rpc.lockd -- NFS file locking daemon


SYNOPSIS

     rpc.lockd [-d debug_level] [-g grace period]


DESCRIPTION

     The rpc.lockd 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 rpc.statd(8).

     Options and operands available for rpc.lockd:

     -d      The -d option causes debugging information to be written to sys-
             log, recording all RPC transactions to the daemon.  These mes-
             sages are logged with level LOG_DEBUG and facility LOG_DAEMON.
             Specifying a 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.

     -g      The -g option allow to specify the grace period, in seconds.
             During the grace period rpc.lockd only accepts requests from
             hosts which are reinitialising locks which existed before the
             server restart.  Default is 30 seconds.

     Error conditions are logged to syslog, irrespective of the debug level,
     using log level LOG_ERR and facility LOG_DAEMON.

     The rpc.lockd utility must NOT be invoked by inetd(8) because the proto-
     col assumes that the daemon will run from system start time.  Instead, it
     should be configured in rc.conf(5) to run at system startup.


FILES

     /usr/include/rpcsvc/nlm_prot.x  RPC protocol specification for the net-
                                     work lock manager protocol.


SEE ALSO

     syslog(3), rc.conf(5), rpc.statd(8)


STANDARDS

     The implementation is based on the specification in "Protocols for X/Open
     PC Interworking: XNFS, Issue 4", X/Open CAE Specification C218, ISBN 1
     872630 66 9.


HISTORY

     A version of rpc.lockd appeared in SunOS 4.


BUGS

     The current implementation serialises locks requests that could be
     shared.

FreeBSD 6.2                   September 24, 1995                   FreeBSD 6.2


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