.TH SLAPO-LASTBIND 5 "RELEASEDATE" "OpenLDAP LDVERSION"
.\" Copyright 2009 Jonathan Clarke, All Rights Reserved.
.\" $OpenLDAP$
.SH NAME
slapo-lastbind \- lastbind overlay to slapd
.SH SYNOPSIS
ETCDIR/slapd.conf
.SH DESCRIPTION
The
.B lastbind
overlay to
.BR slapd (8)
allows recording the timestamp of the last successful bind to entries
in the directory, in the
.B authTimestamp
attribute.
The overlay can be configured to update this timestamp only if it is
older than a given value, thus avoiding large numbers of write
operations penalizing performance.
One sample use for this overlay would be to detect unused accounts.
.SH CONFIGURATION
The config directives that are specific to the
.B lastbind
overlay must be prefixed by
.BR lastbind\- ,
to avoid potential conflicts with directives specific to the underlying
database or to other stacked overlays.
.TP
.B overlay lastbind
This directive adds the
.B lastbind
overlay to the current database, see
.BR slapd.conf (5)
for details.
.LP
This
.B slapd.conf
configuration option is defined for the lastbind overlay. It must
appear after the
.B overlay
directive:
.TP
.B lastbind-precision <seconds>
The value
.B <seconds>
is the number of seconds after which to update the
.B authTimestamp
attribute in an entry. If the existing value of
.B authTimestamp
is less than
.B <seconds>
old, it will not be changed.
If this configuration option is omitted, the
.B authTimestamp
attribute is updated on each successful bind operation.
.SH EXAMPLE
This example configures the
.B lastbind
overlay to store
.B authTimestamp
in all entries in a database, with a 1 week precision.
Add the following to
.BR slapd.conf (5):
.LP
.nf
database <database>
# ...
overlay lastbind
lastbind-precision 604800
.fi
.LP
.B slapd
must also load
.B lastbind.la,
if compiled as a run-time module;
.SH FILES
.TP
ETCDIR/slapd.conf
default slapd configuration file
.SH SEE ALSO
.BR slapd.conf (5),
.BR slapd (8).
The
.BR slapo-lastbind (5)
overlay supports dynamic configuration via
.BR back-config.
.SH ACKNOWLEDGEMENTS
.P
This module was written in 2009 by Jonathan Clarke. It is loosely
derived from the password policy overlay.