redhat man page for statd

rpc.statd(8)						      System Manager's Manual						      rpc.statd(8)

NAME
       rpc.statd - NSM status monitor

SYNOPSIS
       /sbin/rpc.statd [-F] [-d] [-?] [-n  name ] [-o  port ] [-p  port ] [-V]

DESCRIPTION
       The  rpc.statd  server implements the NSM (Network Status Monitor) RPC protocol.  This service is somewhat misnomed, since it doesn't actu-
       ally provide active monitoring as one might suspect; instead, NSM implements a reboot notification service. It is  used	by  the  NFS  file
       locking service, rpc.lockd, to implement lock recovery when the NFS server machine crashes and reboots.

   Operation
       For  each  NFS  client  or  server  machine to be monitored, rpc.statd creates a file in /var/lib/nfs/statd/sm.	When starting, it iterates
       through these files and notifies the peer rpc.statd on those machines.

OPTIONS
       -F     By default, rpc.statd forks and puts itself in the background when started. The -F argument tells it to remain  in  the  foreground.
	      This option is mainly for debugging purposes.

       -d     By default, rpc.statd sends logging messages via syslog(3) to system log.  The -d argument forces it to log verbose output to stderr
	      instead. This option is mainly for debugging purposes, and may only be used in conjunction with the -F parameter.

       -n, --name name
	      specify a name for rpc.statd to use as the local hostname. By default, rpc.statd will call gethostname(2) to get the local hostname.
	      Specifying a local hostname may be useful for machines with more than one interfaces.

       -o, --outgoing-port port
	      specify  a  port for rpc.statd to send outgoing status requests from.  By default, rpc.statd will ask portmap(8) to assign it a port
	      number.  As of this writing, there is not a standard port number that portmap always or usually assigns.	Specifying a port  may	be
	      useful when implementing a firewall.

       -p, --port port
	      specify  a port for rpc.statd to listen on.  By default, rpc.statd will ask portmap(8) to assign it a port number.  As of this writ-
	      ing, there is not a standard port number that portmap always or usually assigns.	Specifying a port may be useful when  implementing
	      a firewall.

       -?     Causes rpc.statd to print out command-line help and exit.

       -V     Causes rpc.statd to print out version information and exit.

TCP_WRAPPERS SUPPORT
       This  rpc.statd version is protected by the tcp_wrapper library. You have to give the clients access to rpc.statd if they should be allowed
       to use it. To allow connects from clients of the .bar.com domain you could use the following line in /etc/hosts.allow:

       statd: .bar.com

       You have to use the daemon name statd for the daemon name (even if the binary has a different name).

       For further information please have a look at the tcpd(8) and hosts_access(5) manual pages.

FILES
       /var/lib/nfs/statd/sm/state
       /var/lib/nfs/statd/sm/*
       /var/lib/nfs/statd/sm.bak/*

SEE ALSO
       rpc.nfsd(8), portmap(8)

AUTHORS
       Jeff Uphoff <juphoff@transmeta.com>
       Olaf Kirch <okir@monad.swb.de>
       H.J. Lu <hjl@gnu.org>
       Lon Hohberger <hohberger@missioncriticallinux.com>

								    08 Mar 2001 						      rpc.statd(8)