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RedHat 9 (Linux i386) - man page for rpc.mountd (redhat section 8)

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

NAME
       rpc.mountd - NFS mount daemon

SYNOPSIS
       /usr/sbin/rpc.mountd [options]

DESCRIPTION
       The  rpc.mountd	program implements the NFS mount protocol. When receiving a MOUNT request
       from an NFS client, it checks the request against the list of currently exported file sys-
       tems.  If the client is permitted to mount the file system, rpc.mountd obtains a file han-
       dle for requested directory and returns it to the client.

   Exporting NFS File Systems
       Making file systems available to NFS clients is called exporting.

       Usually, a file system and the hosts it should be made available  to  are  listed  in  the
       /etc/exports file, and invoking exportfs -a whenever the system is booted. The exportfs(8)
       command makes export information available to both the kernel NFS server  module  and  the
       rpc.mountd daemon.

       Alternatively,	you  can  export  individual  directories  temporarily	using  exportfs's
       host:/directory syntax.

   The rmtab File
       For every mount request received from an NFS client,  rpc.mountd  adds  an  entry  to  the
       /var/lib/nfs/rmtab  file.  When receiving an unmount request, that entry is removed.  user
       level part of the NFS service.

       However, this file is mostly ornamental. One, the client can continue to use the file han-
       dle  even after calling rpc.mountd 's UMOUNT procedure. And two, if a client reboots with-
       out notifying rpc.mountd , a stale entry will remain in rmtab.

OPTIONS
       -d kind	or  --debug kind
	      Turn on debugging for kind.

       -F  or  --foreground
	      Run in foreground (do not daemonize)

       -f  or  --exports-file
	      This option specifies the exports file, listing the clients  that  this  server  is
	      prepared	to serve and parameters to apply to each such mount (see exports(5)).  By
	      default, export information is read from /etc/exports.

       -h  or  --help
	      Display usage message.

       -o num  or  --descriptors num
	      Set the limit of the number of open file descriptors to num. The default is 256.

       -N  or  --no-nfs-version
	      This option can be used to request that rpc.mountd do not offer certain versions of
	      NFS. The current version of rpc.mountd can support both NFS version 2 and the newer
	      version 3. If the NFS  kernel  module  was  compiled  without  support  for  NFSv3,
	      rpc.mountd must be invoked with the option --no-nfs-version 3 .

       -n  or  --no-tcp
	      Don't advertise TCP for mount.

       -P     Ignored (compatibility with unfsd??).

       -p  or  --port num
	      Force  rpc.mountd  to  bind  to the specified port num, instead of using the random
	      port number assigned by the portmapper.

       -V  or  --nfs-version
	      This option can be used to request that rpc.mountd offer certain versions  of  NFS.
	      The current version of rpc.mountd can support both NFS version 2 and the newer ver-
	      sion 3.

       -v  or  --version
	      Print the version of rpc.mountd and exit.

TCP_WRAPPERS SUPPORT
       This rpc.mountd version is protected by the tcp_wrapper library.  You  have  to	give  the
       clients	access	to rpc.mountd 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:

       mountd: .bar.com

       You have to use the daemon name mountd for the daemon name (even if the binary has a  dif-
       ferent name).

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

SEE ALSO
       rpc.nfsd(8), exportfs(8), exports(5), rpc.rquotad(8).

FILES
       /etc/exports, /var/lib/nfs/xtab.

AUTHOR
       Olaf Kirch, H. J. Lu, G. Allan Morris III, and a host of others.

					   25 Aug 2000				    rpc.mountd(8)


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