unshare(1M) System Administration Commands unshare(1M)NAME
unshare - make local resource unavailable for mounting by remote systems
SYNOPSIS
unshare [-p] [-F FSType] [-o specific_options]
[pathname | resourcename]
DESCRIPTION
The unshare command makes a shared local resource unavailable as file system type FSType. If the option -FFSType is omitted, then the first
file system type listed in file /etc/dfs/fstypes will be used as the default. Specific_options, as well as the semantics of resourcename,
are specific to particular distributed file systems.
OPTIONS -F FSType
Specify the file system type.
-o specific_options
Specify options specific to the file system provided by the -F option.
-p
Remove resource from shared status in a way that persists across reboots.
FILES
/etc/dfs/fstypes
Lists distributed file system utilities packages installed on the system.
/etc/dfs/sharetab
Contains a table of local resources shared by the share command.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO share(1M), shareall(1M), attributes(5)NOTES
If pathname or resourcename is not found in the shared information, an error message will be sent to standard error.
When an unshare command completes successfully, a client mounting a file system specified in that unshare command no longer has access to
that file system.
SunOS 5.11 23 Jan 2007 unshare(1M)
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share(1M) System Administration Commands share(1M)NAME
share - make local resource available for mounting by remote systems
SYNOPSIS
share [-p] [-F FSType] [-o specific_options] [-d description]
[pathname]
DESCRIPTION
The share command exports, or makes a resource available for mounting, through a remote file system of type FSType. If the option -F FSType
is omitted, the first file system type listed in /etc/dfs/fstypes is used as default. For a description of NFS specific options, see
share_nfs(1M). pathname is the pathname of the directory to be shared. When invoked with no arguments, share displays all shared file sys-
tems.
OPTIONS -d description
The -d flag may be used to provide a description of the resource being shared.
-F FSType
Specify the filesystem type.
-o specific_options
The specific_options are used to control access of the shared resource. (See share_nfs(1M) for the NFS specific options.) They may be
any of the following:
rw
pathname is shared read/write to all clients. This is also the default behavior.
rw=client[:client]...
pathname is shared read/write only to the listed clients. No other systems can access pathname.
ro
pathname is shared read-only to all clients.
ro=client[:client]...
pathname is shared read-only only to the listed clients. No other systems can access pathname.
Separate multiple options with commas. Separate multiple operands for an option with colons. See EXAMPLES.
-p
Causes the share operation to persist across reboots.
EXAMPLES
Example 1 Sharing a Read-Only Filesystem
This line will share the /disk file system read-only at boot time.
share -F nfs -o ro /disk
Example 2 Invoking Multiple Options
The following command shares the filesystem /export/manuals, with members of the netgroup having read-only access and users on the speci-
fied host having read-write access.
share -F nfs -o ro=netgroup_name,rw=host1:host2:host3 /export/manuals
FILES
/etc/dfs/dfstab
List of share commands to be executed at boot time. Note that you can invoke share from a command line and use the -p option, described
above, as an alternative to editing this file.
/etc/dfs/fstypes
List of file system types; NFS is the default.
/etc/dfs/sharetab
System record of shared file systems.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO mountd(1M), nfsd(1M), share_nfs(1M), shareall(1M), unshare(1M), attributes(5)NOTES
Export (old terminology): file system sharing used to be called exporting on SunOS 4.x, so the share command used to be invoked as
exportfs(1B) or /usr/sbin/exportfs.
If share commands are invoked multiple times on the same filesystem, the last share invocation supersedes the previous--the options set by
the last share command replace the old options. For example, if read-write permission was given to usera on /somefs, then to give read-
write permission also to userb on /somefs:
example% share -F nfs -o rw=usera:userb /somefs
This behavior is not limited to sharing the root filesystem, but applies to all filesystems.
SunOS 5.11 23 Jan 2007 share(1M)