Red Hat ENTERPRISE LINUX 5 - DEPLOYMENT Deployment Manual page 271

automount: files nis
and the NIS auto.master map file contains the following:
/home auto.home
Also assume the NIS auto.home map contains the following:
beth fileserver.example.com:/export/home/beth
joe fileserver.example.com:/export/home/joe
* fileserver.example.com:/export/home/&
and the file map /etc/auto.home does not exist.
For the above example, lets assume that the client system needs to mount home directories from a
different server. In this case, the client will need to use the following /etc/auto.master map:
/home /etc/auto.home2
+auto.master
And the /etc/auto.home2 map contains the entry:
* labserver.example.com:/export/home/&
Because only the first occurrence of a mount point is processed, /home will contain the contents of /
etc/auto.home2 instead of the NIS auto.home map.
Alternatively, if you just want to augment the site-wide
auto.home
map with a few entries, create a /etc/auto.home file map, and in it put your new entries and at the
end, include the NIS auto.home map. Then the /etc/auto.home file map might look similar to:
mydir someserver:/export/mydir
+auto.home
Given the NIS auto.home map listed above, an ls of /home would now give:
$ ls /home
beth joe mydir
This last example works as expected because autofs knows not to include the contents of a file map
of the same name as the one it is reading and so moves on to the next map source in the nsswitch
configuration.
19.3.3.2. Using LDAP to Store Automounter Maps
LDAP client libraries must be installed on all systems which are to retrieve automounter maps from
LDAP. On RHEL 5, the openldap package should be installed automatically as a dependency of
the automounter. To configure LDAP access, modify /etc/openldap/ldap.conf. Ensure that
BASE and URI are set appropriately for your site. Please also ensure that the schema is set in the
configuration.
autofs Common Tasks
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