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config.5	20.88 KB	-rw-r--r--
freetds.conf.5	6.31 KB	-rw-r--r--
ldap.conf.5	16.48 KB	-rw-r--r--
ldif.5	6.58 KB	-rw-r--r--
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proftpd.conf.5	1.28 KB	-rw-r--r--
slapd.access.5	28.38 KB	-rw-r--r--
slapd.backends.5	5.02 KB	-rw-r--r--
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slapd.conf.5	65.35 KB	-rw-r--r--
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x509v3_config.5	22.8 KB	-rw-r--r--
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Code Editor : slapd-ndb.5

.lf 1 stdin
.TH SLAPD-NDB 5 "2019/07/24" "OpenLDAP 2.4.48"
.\" Copyright 2008-2019 The OpenLDAP Foundation All Rights Reserved.
.\" Copying restrictions apply.  See COPYRIGHT/LICENSE.
.\" $OpenLDAP$
.SH NAME
slapd\-ndb \- MySQL NDB backend to slapd
.SH SYNOPSIS
.B /opt/lampp/etc/openldap/slapd.conf
.SH DESCRIPTION
The \fBndb\fP backend to
.BR slapd (8)
uses the MySQL Cluster package to store data, through its NDB API.
It provides fault tolerance with extreme scalability, along with
a degree of SQL compatibility.
.LP
This backend is designed to store LDAP information using tables that
are also visible from SQL. It uses a higher level SQL API for creating
these tables, while using the low level NDB API for storing and
retrieving the data within these tables. The NDB Cluster engine
allows data to be partitioned across multiple data nodes, and this
backend allows multiple slapd instances to operate against a given
database concurrently.
.LP
The general approach is to use distinct tables for each LDAP object class.
Entries comprised of multiple object classes will have their data
spread across multiple tables. The data tables use a 64 bit entryID
as their primary key. The DIT hierarchy is maintained in a separate
table, which maps DNs to entryIDs.
.LP
This backend is experimental. While intended to be a general-purpose
backend, it is currently missing a number of common LDAP features.
See the \fBTODO\fP file in the source directory for details.
.SH CONFIGURATION
These
.B slapd.conf
options apply to the \fBndb\fP backend database.
That is, they must follow a "database ndb" line and
come before any subsequent "backend" or "database" lines.
Other database options are described in the
.BR slapd.conf (5)
manual page.

.SH DATA SOURCE CONFIGURATION

.TP
.B dbhost <hostname>
The name or IP address of the host running the MySQL server. The default
is "localhost". On Unix systems, the connection to a local server is made
using a Unix Domain socket, whose path is specified using the
.B dbsocket
directive.
.TP
.B dbuser <username>
The MySQL login ID to use when connecting to the MySQL server. The chosen
user must have sufficient privileges to manipulate the SQL tables in the
target database.
.TP
.B dbpasswd <password>
The password for the \fBdbuser\fP.
.TP
.B dbname <database name>
The name of the MySQL database to use.
.TP
.B dbport <port>
The port number to use for the TCP connection to the MySQL server.
.TP
.B dbsocket <path>
The socket to be used for connecting to a local MySQL server.
.TP
.B dbflag <integer>
Client flags for the MySQL session. See the MySQL documentation for details.
.TP
.B dbconnect <connectstring>
The name or IP address of the host running the cluster manager. The default
is "localhost".
.TP
.B dbconnections <integer>
The number of cluster connections to establish. Using up to 4 may improve
performance under heavier load. The default is 1.

.SH SCHEMA CONFIGURATION
.TP
.B attrlen <attribute> <length>
Specify the column length to use for a particular attribute. LDAP attributes are
stored in individual columns of the SQL tables. The maximum column lengths for
each column must be specified when creating these tables. If a length constraint
was specified in the attribute's LDAP schema definition, that value will be used
by default. If the schema didn't specify a constraint, the default is 128 bytes.
Currently the maximum is 1024.
.TP
.B index <attr[,attr...]>
Specify a list of attributes for which indexing should be maintained.
Currently there is no support for substring indexing; a single index structure
provides presence, equality, and inequality indexing for the specified attributes.
.TP
.B attrset <set> <attrs>
Specify a list of attributes to be treated as an attribute set. This directive
creates a table named \fIset\fP which will contain all of the listed attributes.
Ordinarily an attribute resides in a table named by an object class that uses
the attribute. However, attributes are only allowed to appear in a single table.
For attributes that are derived from an inherited object class definition,
the attribute will only be stored in the superior class's table.
Attribute sets should be defined for any attributes that are used in multiple
unrelated object classes, i.e., classes that are not connected by a simple
inheritance chain.
.SH ACCESS CONTROL
The 
.B ndb
backend honors most access control semantics as indicated in
.BR slapd.access (5).
.SH FILES
.TP
.B /opt/lampp/etc/openldap/slapd.conf
default 
.B slapd 
configuration file
.SH SEE ALSO
.BR slapd.conf (5),
.BR slapd\-config (5),
.BR slapd (8),
.BR slapadd (8),
.BR slapcat (8),
.BR slapindex (8),
MySQL Cluster documentation.
.SH AUTHOR
Howard Chu, with assistance from Johan Andersson et al @ MySQL.

${this.title}

Code Editor : slapd-ndb.5