NFS Services Administrator's Guide (B.11.31.04) March 2009

In the direct map entry, HOST, is the environment variable.
2. Add the -D option to the AUTOMOUNTD_OPTIONS variable in the
/etc/rc.config.d/nfsconf file to assign a value to the variable, as follows:
AUTOMOUNTD_OPTIONS=”-D HOST='hostname'”
NOTE: You can also use the /etc/default/autofs file to modify the value
assigned to the variable.
You can use any environment variable that is set to a value in an AutoFS map. If you
do not set the variable either with the -D option in /etc/rc.config.d/nfsconf
file or by using the /etc/default/autofs file, AutoFS uses the current value of the
environment variable on the local host.
For information on some of the pre-defined environment variables, see automount(1M).
Using Wildcard Characters as Shortcuts in AutoFS Maps
Using wildcard characters makes it very easy to mount all the directories from a remote
server to an identically named directory on the local host.
Consider the following guidelines while using wildcard characters as shortcuts:
• Use an asterisk (*) as a wildcard character in an indirect map, to represent the local
subdirectory if you want the local subdirectory to be the same as the remote system
name, or the remote subdirectory.
You cannot use the asterisk (*) wildcard in a direct map.
• Use an ampersand (&) in a direct or an indirect map as the remote system name
or the remote subdirectory. The entry in the local directory name field replaces
the ampersand. If you have used an asterisk to represent the local subdirectory,
then the entry that replaces the asterisk (*) in the local subdirectory field also
replaces the ampersand (&) in the remote system name, or remote subdirectory
field.
Notes on Using Wildcard Characters as Shortcuts in Maps
The following example illustrates the automounting of the users’ home directories. The
home directories are physically located on the NFS server, basil, under the remote
directory /export/home. On the local NFS client, the home directories are mounted
under /home.
The following entry from the /etc/auto_master master map lists the indirect map,
/etc/auto_home:
# /etc/auto_master file
# local mount-point map name mount options
/home /etc/auto_home -nosuid
88 Configuring and Administering AutoFS