1. Introduction

This document catalogs currently available implementations of X.500, including commercial products and openly available offerings. For the purposes of this survey, we classify X.500 products as,

DSA

A DSA is an OSI application process that provides the Directory functionality,

DUA

A DUA is an OSI application process that represents a user in accessing the Directory and uses the DAP to communicate with a DSA, and

DUA Interface

A DUA Interface is an application process that represents a user in accessing the Directory using either DAP but supporting only a subset of the DAP functionality or a protocol different from DAP to communicate with a DSA or DUA.

Section 2 of this document contains a listing of implementations cross referenced by keyword. This list should aid in identifying implementations that meet your criteria.

To compile this catalog, the IDS Working Group solicited input from the X.500 community by publishing a URL for a set of on-line description forms deployed on the WWW as a home page on an InterNIC server. This URL (http://www.internic.net/projects/x500catalog/catalogtop.html) was advertised on the following directory-related mailing lists: iso@nic.ddn.mil, isode@nic.ddn.mil, osi-ds@cs.ucl.ac.uk, ids@merit.edu, ietf-asid@umich.edu, mhs-ds@mercury.udev.cdc.com, nadf-l@ema.org, and dssig@nist.gov.

Readers are encouraged to submit comments regarding both the forms and content of this memo. New submissions are welcome. Please direct input to the Integrated Directory Services (IDS) Working Group (ietf-ids@umich.edu) or to the authors. IDS will produce new versions of this document when a significant number of substantive comments have been received or when significant updates and/or modifications to X.500-related standards documents have been ratified. This will be determined by the IDS chairpersons.

1.1. Purpose

The Internet has experienced a steady growth in X.500 piloting activities. This document hopes to provide an easily accessible source of information on X.500 implementations for those who wish to consider X.500 technology for deploying a Directory service.

1.2. Scope

This document contains descriptions of both free and commercial X.500 implementations. It does not provide instructions on how to install, run, or manage these implementations. The descriptions and indices are provided to make the readers aware of available options and thus enable more informed choices.

1.3. Disclaimer

Implementation descriptions were written by implementors and vendors, and not by the editors. We worked with the description authors to ensure uniformity and readability, but cannot guarantee the accuracy or completeness of the descriptions, nor the stability of the implementations.

1.4. Overview

Section 1 contains introductory information.

Section 2 contains a list of keywords, their definitions, a cross reference of the X.500 implementations by these keywords and a table containing implementor name, implementor abreviation, and the page of this document on which the description begins for a particular implementor.

Section 3 contains the X.500 implementation descriptions.

Section 4 has a list of references.

Section 6 lists the editors' addresses.

1.5. Acknowledgments

The creation of this catalog would not have been possible without the efforts of the description authors and the members of the IDS Working Group. Our special thanks to the editors of [RFC 1632], Linda Millington and Sri Sataluri who graciously contributed the nroff source file used to structure their version of the catalog.