export and unexport directories to NFS clients
[ -avui ] [ -o options ]
[ directory ]
exportfs makes a local directory (or filename)
available for mounting over the network by NFS clients.
It is normally invoked at boot time by the NFS startup
script and uses information contained in the
/etc/exports file to export directories (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
With no options or arguments, exportfs prints out
the list of directories currently exported.
all. This option exports all directories listed in
/etc/exports, or if -u is also
specified, unexports all of the currently exported
verbose. This option prints each directory
as it is exported or unexported.
unexport the indicated directories.
ignore the options in /etc/exports.
Normally, exportfs will consult
/etc/exports for the options associated with the
specify a comma-separated list of optional characteristics
for the directory being exported. options can be
selected from among:
export the directory read-only. If not
specified, the directory is exported read-write.
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.
If a request comes from an unknown user, use uid
as the effective user ID.
root users (UID 0) are always
considered ``unknown'' by the NFS server (unless
they are included in the root option). The
default value for anon is -2.
By default NFS accepts insecure requests as anonymous.
For extra security, you can disable this
feature by setting anon to -1.
map the following list of uids to the anonymous
map the following list of gids to the anonymous
give root access only to the root users from a specified
hostname. The default is for no hosts to be
granted root access.
give mount access to each client listed. A
client can either be a hostname, or a netgroup
Each client in the list is first checked for in
the netgroup database and then in the
hosts database. The default value allows any
machine to mount the given directory.
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.
static export information
current state of exported directories
list of network-wide groups
list of hosts on network
© 2003 Caldera International, Inc. All rights reserved.
SCO OpenServer Release 5.0.7 -- 11 February 2003