> # Retrieving Connection Information from LDAP Directories

> When a SequeLink Client retrieves connection information from an LDAP directory, the connection to the SequeLink Server takes place as a two-step process as shown in Figure 16-1.

> 1. The SequeLink Client connects to the LDAP server and retrieves connection information from an LDAP entry.
> 2. Using the connection information retrieved from the LDAP entry, the SequeLink Client connects to the SequeLink Server.
> Figure 16-1. Retrieving Connection Information from an LDAP Directory

> To retrieve connection information from an LDAP directory, you configure the following information at the SequeLink Client:

> LDAP Server Host | is the TCP/IP host name of the LDAP server.
> LDAP Server Port | is the TCP/IP port that the LDAP server is listening on for incoming connection requests. If unspecified, the SequeLink Client will use the default LDAP port 389.
> Distinguished Name (DN) | is an identifier that uniquely identifies the LDAP entry where connection information is stored. See "Creating LDAP Entries for SequeLink® Services" for information about what you must include in an LDAP entry.

> For information about configuring ODBC Clients and ADO Clients to connect to an LDAP server to retrieve connection information:

> - See "Configuring the ODBC Client"
> - See "Configuring the ADO Client"

> For JDBC Clients, JDBC data sources store connection instructions in a JNDI (Java Naming and Distribution Interface) infrastructure, which can support LDAP. See "Using an LDAP Server as Your JNDI Service Provider" for more information.

> See "OpenLDAP Support" for information about the SequeLink LDAP schema definition for OpenLDAP.