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SLAPO_LASTMOD(5) File Formats Manual SLAPO_LASTMOD(5) NAME slapo-lastmod - Last Modification overlay SYNOPSIS ETCDIR/slapd.conf DESCRIPTION The lastmod overlay creates a service entry rooted at the suffix of the database it's stacked onto, which holds the DN, the modification type, the modifiersName and the modifyTimestamp of the last write operation performed on that database. The lastmod overlay cannot be used when the "lastmod" feature is disabled, i.e. "lastmod off" is used. All operations targeted at the DN of the lastmod entry are rejected, except reads, i.e. searches with base scope. Regular operations are ignored, un- less they result in writing; then, in case of success, the lastmod entry is updated accordingly, if possible. CONFIGURATION These slapd.conf configuration options apply to the lastmod overlay. They must appear after the overlay directive. lastmod-rdnvalue <RDN value> Specify the value of the RDN used for the service entry. By default Lastmod is used. lastmod-enabled {yes|no} Specify whether the overlay must be enabled or not at startup. By default, the overlay is enabled; however, by changing the boolean value of the attribute lastmodEnabled, one can affect the status of the overlay. This is useful, for instance, to inhibit the overlay from keeping track of large bulk loads or deletions. OBJECT CLASS The lastmod overlay depends on the lastmod objectClass. The definition of that class is as follows: ( 1.3.6.1.4.1.4203.666.3.13 " NAME 'lastmod' DESC 'OpenLDAP per-database last modification monitoring' STRUCTURAL SUP top MUST ( cn $ lastmodDN $ lastmodType ) MAY ( description $ seeAlso ) ) ATTRIBUTES Each one of the sections below details the meaning and use of a particular attribute of this lastmod objectClass. Most of the attributes that are specific to the lastmod objectClass are operational, since they can logi- cally be altered only by the DSA. The most notable exception is the last- modEnabled attributeType, which can be altered via protocol to change the status of the overlay. lastmodEnabled This attribute contains a boolean flag that determines the status of the overlay. It can be altered via protocol by issuing a modify operation that replaces the value of the attribute. ( 1.3.6.1.4.1.4203.666.1.30 NAME 'lastmodEnabled' DESC 'Lastmod overlay state' SYNTAX 1.3.6.1.4.1.1466.115.121.1.7 EQUALITY booleanMatch SINGLE-VALUE ) OPERATIONAL ATTRIBUTES Each one of the sections below details the meaning and use of a particular attribute of this lastmod objectClass. Most of the attributes that are specific to the lastmod objectClass are operational, since they can logi- cally be altered only by the DSA. lastmodDN This attribute contains the distinguished name of the entry that was last modified within the naming context of a database. ( 1.3.6.1.4.1.4203.666.1.28 NAME 'lastmodDN' DESC 'DN of last modification' EQUALITY distinguishedNameMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.12 NO-USER-MODIFICATION USAGE directoryOperation ) lastmodType This attribute contains the type of the modification that occurred to the last modified entry. Legal values are add, delete, exop, modify, modrdn and unknown. The latter should only be used as a fall-thru in case of un- handled request types that are considered equivalent to a write operation. ( 1.3.6.1.4.1.4203.666.1.29 NAME 'lastmodType' DESC 'Type of last modification' SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 EQUALITY caseIgnoreMatch SINGLE-VALUE NO-USER-MODIFICATION USAGE directoryOperation ) EXAMPLES database mdb suffix dc=example,dc=com overlay lastmod lastmod-rdnvalue "Last Modification" SEE ALSO ldap(3), slapd.conf(5), "OpenLDAP Administrator's Guide" (http://www.OpenLDAP.org/doc/admin/) BUGS It is unclear whether this overlay can safely interoperate with other over- lays. If the underlying backend does not implement entry_get/entry_release handlers, modrdn update can become tricky. The code needs some cleanup and more consistent error handling. So far, the OIDs for the schema haven't been assigned yet. ACKNOWLEDGEMENTS This module was written in 2004 by Pierangelo Masarati in fulfillment of requirements from SysNet s.n.c.; this man page has been copied from slapo- ppolicy(5), and most of the overlays ever written are copied from Howard Chu's first overlays. OpenLDAP is developed and maintained by The OpenLDAP Project (http://www.openldap.org/). OpenLDAP is derived from University of Michi- gan LDAP 3.3 Release. OpenLDAP LDVERSION RELEASEDATE SLAPO_LASTMOD(5)
NAME | SYNOPSIS | DESCRIPTION | CONFIGURATION | OBJECT CLASS | ATTRIBUTES | OPERATIONAL ATTRIBUTES | EXAMPLES | SEE ALSO | BUGS | ACKNOWLEDGEMENTS
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