HCL Domino® provides directory catalogs and directory assistance to help companies operate in environments with secondary directories.

A secondary directory is any server-based directory that is not a server's primary Domino Directory. A secondary directory can be a Domino Directory for a different Domino domain, a Domino Directory that you create manually from the pubnames.ntf template that is unaffiliated with a Domino domain, an extended directory catalog, or a remote LDAP directory.

Planning directory catalogs
A directory catalog is an optional directory database that can aggregate entries from multiple HCL Domino directories into a single database. A directory catalog provides enterprise-wide directory access via a single database.

Planning directory assistance
Servers use directory assistance to look up information in a secondary directory -- a secondaryHCL Domino Directory, an extended directory catalog, or a remote LDAP directory.

Comparison of directory catalogs and directory assistance
Using a condensed directory catalog on a server is no longer supported.

Directory search order
The order in which HCL Notes and HCL Domino search directories depends on the nature of the search and the configuration of the directory.

Distinguished name syntax in multiple-directory environments
For a multiple directory environment that include entries that reside in both HCL Domino and LDAP directories, it's important to understand in what contexts to use an HCL Notes distinguished name and in what contexts to use an LDAP D distinguished nameN (defined in RFC 2253).

Related concepts
Directory search order
Planning directory services
Directory services terms
Distinguished name syntax in multiple-directory environments

Related tasks
Planning directory catalogs
Planning directory assistance
Comparison of directory catalogs and directory assistance