21.3.3.2. 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.
The most recently established schema for storing automount maps in LDAP is described by
rfc2307bis
. To use this schema it is necessary to set it in the autofs
configuration (/etc/sysconfig/autofs
) by removing the comment characters from the schema definition. For example:
DEFAULT_MAP_OBJECT_CLASS="automountMap" DEFAULT_ENTRY_OBJECT_CLASS="automount" DEFAULT_MAP_ATTRIBUTE="automountMapName" DEFAULT_ENTRY_ATTRIBUTE="automountKey" DEFAULT_VALUE_ATTRIBUTE="automountInformation"
DEFAULT_MAP_OBJECT_CLASS="automountMap"
DEFAULT_ENTRY_OBJECT_CLASS="automount"
DEFAULT_MAP_ATTRIBUTE="automountMapName"
DEFAULT_ENTRY_ATTRIBUTE="automountKey"
DEFAULT_VALUE_ATTRIBUTE="automountInformation"
Ensure that these are the only schema entries not commented in the configuration. Please also note that the
automountKey
replaces the cn
attribute in the rfc2307bis
schema. An LDIF
of a sample configuration is described below:
extended LDIF LDAPv3 base <> with scope subtree filter: (&(objectclass=automountMap)(automountMapName=auto.master)) requesting: ALL auto.master, example.com extended LDIF LDAPv3 base <automountMapName=auto.master,dc=example,dc=com> with scope subtree filter: (objectclass=automount) requesting: ALL /home, auto.master, example.com extended LDIF LDAPv3 base <> with scope subtree filter: (&(objectclass=automountMap)(automountMapName=auto.home)) requesting: ALL auto.home, example.com extended LDIF LDAPv3 base <automountMapName=auto.home,dc=example,dc=com> with scope subtree filter: (objectclass=automount) requesting: ALL foo, auto.home, example.com /, auto.home, example.com
# extended LDIF
#
# LDAPv3
# base <> with scope subtree
# filter: (&(objectclass=automountMap)(automountMapName=auto.master))
# requesting: ALL
#
# auto.master, example.com
dn: automountMapName=auto.master,dc=example,dc=com
objectClass: top
objectClass: automountMap
automountMapName: auto.master
# extended LDIF
#
# LDAPv3
# base <automountMapName=auto.master,dc=example,dc=com> with scope subtree
# filter: (objectclass=automount)
# requesting: ALL
#
# /home, auto.master, example.com
dn: automountMapName=auto.master,dc=example,dc=com
objectClass: automount
cn: /home
automountKey: /home
automountInformation: auto.home
# extended LDIF
#
# LDAPv3
# base <> with scope subtree
# filter: (&(objectclass=automountMap)(automountMapName=auto.home))
# requesting: ALL
#
# auto.home, example.com
dn: automountMapName=auto.home,dc=example,dc=com
objectClass: automountMap
automountMapName: auto.home
# extended LDIF
#
# LDAPv3
# base <automountMapName=auto.home,dc=example,dc=com> with scope subtree
# filter: (objectclass=automount)
# requesting: ALL
#
# foo, auto.home, example.com
dn: automountKey=foo,automountMapName=auto.home,dc=example,dc=com
objectClass: automount
automountKey: foo
automountInformation: filer.example.com:/export/foo
# /, auto.home, example.com
dn: automountKey=/,automountMapName=auto.home,dc=example,dc=com
objectClass: automount
automountKey: /
automountInformation: filer.example.com:/export/&