EXPORTFS(1M)        RISC/os Reference Manual         EXPORTFS(1M)



NAME
     exportfs - export and unexport directories to NFS clients

SYNOPSIS
     /usr/etc/exportfs [ -avui ] [ -o options <dir> ] [ directory
     ]

DESCRIPTION
     exportfs makes a local directory (or file) available for
     mounting over the network by NFS clients.  It is normally
     invoked at boot time by the /etc/rc.local script, and uses
     information contained in the /etc/exports file to export a
     directory (which must be specified as a full pathname).  The
     super-user can run exportfs at any time to alter the list or
     characteristics of exported directories.  Directories that
     are currently exported  are listed in the file /etc/xtab.

     With no options or arguments, exportfs prints out the list
     of directories currently exported.

OPTIONS
     -a   All.  Export all directories listed in /etc/exports, or
          if -u is specified, unexport all of the currently
          exported directories.  When just the -a option is
          given, exportfs will unexport any directories in
          /etc/xtab but not in /etc/exports.

     -v   Verbose.  Print each directory as it is exported or
          unexported.

     -u   Unexport the indicated directories.

     -i   Ignore the options in /etc/exports.  Normally, exportfs
          will consult /etc/exports for the options associated
          with the exported directory.

     -o options
          Specify a comma-separated list of optional characteris-
          tics for the directory being exported.  This option
          subsumes the -i option.  options can be selected from
          among:

          ro   Export the directory read-only. If not specified,
               the directory is exported read-write.

          rw=hostname[:hostname]...
               Export the directory read-mostly. Read-mostly
               means exported read-only to most machines, but
               read-write to those specified. If not specified,
               the directory is exported read-write to all.

          anon=uid



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EXPORTFS(1M)        RISC/os Reference Manual         EXPORTFS(1M)



               If a request comes from an unknown user, use uid
               as the effective user ID. Note: root users (uid 0)
               are always considered "unknown" by the NFS server,
               unless they are included in the "root" option
               below. The default value for this option is -2.
               Setting the value of ``anon'' to -1 disables
               anonymous access. Note that by default secure NFS
               accepts insecure requests as anonymous, and those
               wishing for extra security can disable this
               feature by setting ``anon'' to -1.

          root=hostname[:hostname]...
               Give root access only to the root users from a
               specified hostname.  The default is for no hosts
               to be granted root access.

          access=client[:client]...
               Give mount access to each client listed.  A client
               can either be a hostname, or a netgroup (see net-
               group(4)).  Each client in the list is first
               checked for in the /etc/netgroup database, and
               then the /etc/hosts database.  The default value
               allows any machine to mount the given directory.

          secure
               Require clients to use a more secure protocol when
               accessing the directory.

FILES
     /etc/exports        static export information
     /etc/xtab           current state of exported directories
     /etc/netgroup

SEE ALSO
     exports(4), netgroup(4)

WARNINGS
     You cannot export a directory that is either a parent- or a
     sub-directory of one that is currently exported and within
     the same filesystem. It would be illegal, for example, to
     export both /usr and /usr/local if both directories resided
     in the same disk partition.

ORIGIN
     Sun Microsystems, NFS 4.0










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