Manual page for EXPORTFS(8)
exportfs - export and unexport directories to NFS clients
SYNOPSIS
/usr/etc/exportfs
[
-aiuv
] [
-o
options
] [
pathname
]
DESCRIPTION
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
/etc/rc.local
script, and uses information contained in the
/etc/exports
file to export
pathname
(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 and filenames.
Directories and files that are currently exported are listed in the file
/etc/xtab.
With no options or arguments,
exportfs
prints out the list of directories and filenames currently exported.
OPTIONS
- -a
-
All. Export all pathnames listed in
/etc/exports,
or if
-u
is specified, unexport all of the currently exported pathnames.
- -i
-
Ignore the options in
/etc/exports.
Normally,
exportfs
will consult
/etc/exports
for the options associated with the exported pathname.
- -u
-
Unexport the indicated pathnames.
- -v
-
Verbose.
Print each directory or filename as it is exported or unexported.
- -o options
-
Specify a comma-separated list of optional characteristics for
the pathname being exported.
options
can be selected from among:
-
- ro
-
Export the pathname read-only. If not specified, the pathname
is exported read-write.
- rw=hostname[:hostname]...
-
Export the pathname read-mostly.
Read-mostly means exported read-only to most
machines, but read-write to those specified.
If not specified, the pathname is exported read-write to all.
- anon=uid
-
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 the
UID
of the user ``nobody''.
If the user ``nobody'' does not exist
then the value 65534 is used.
Setting the value of ``anon'' to 65535 disables anonymous access.
Note: by default secure
NFS
accepts insecure requests as anonymous,
and those wishing for extra security can disable this feature by setting
``anon'' to 65535.
- 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
netgroup.5
Each
client
in the list is first checked for in the
/etc/hosts
database, and then the
/etc/netgroup
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 pathnames
- /etc/netgroup
-
SEE ALSO
exports.5
netgroup.5
showmount.8
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.
Created by unroff & hp-tools.
© somebody (See intro for details). All Rights Reserved.
Last modified 11/5/97