NAME    [Toc]    [Back]

     rpc.lockd -- NFS file locking daemon

SYNOPSIS    [Toc]    [Back]

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

DESCRIPTION    [Toc]    [Back]

     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 syslog,
 recording all RPC transactions to the daemon.  These messages
 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 protocol
 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    [Toc]    [Back]

     /usr/include/rpcsvc/nlm_prot.x  RPC protocol specification for the network
 lock manager protocol.

SEE ALSO    [Toc]    [Back]

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

BUGS    [Toc]    [Back]

     The current implementation serialises locks requests that could be
     shared.

STANDARDS    [Toc]    [Back]

     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    [Toc]    [Back]

     A version of rpc.lockd appeared in SunOS 4.


FreeBSD 5.2.1		      September 24, 1995		 FreeBSD 5.2.1