I started working with
Directory Servers back in 1997 when
Netscape was but a fledging company. Over the past 15 years a lot has changed. Companies have come and gone and code has changed hands more times than I care to remember. But one thing remains the same – that little effort started by
Tim Howes, Mark Smith, and Gordon Good at the
University of Michigan is as important today as it was almost two decades ago.
I thought it might be worthwhile to take a look back at the various companies that have carried the
LDAP mantle for stand-alone directory servers and see where we are today. As such, I have created a table of pertinent events (see below) as well as a graphical timeline (see
thumbnail).
I offer you the industry’s most most complete history of directory services that you will ever find – well, at least until the next one comes along.
Directory Services Timeline
The Most Complete History of Directory Services You Will Ever Find
(Until the next one comes along)
Date |
Event |
Source
|
1969 |
First Arpanet node comes online; first RFC published. |
1
|
1973 |
Ethernet invented by Xerox PARC researchers. |
1
|
1982 |
TCP/IP replaces older Arpanet protocols on the Internet. |
1
|
1982 |
First distributed computing research paper on Grapevine published by Xerox PARC researchers. |
1
|
1984 |
Internet DNS comes online. |
1
|
1986 |
IETF formally chartered. |
1
|
1989 |
Quipu (X.500 software package) released. |
1
|
1990 |
Estimated number of Internet hosts exceeds 250,000. |
1
|
1990 |
First version of the X.500 standard published. |
1
|
1991 |
A team at CERN headed by Tim Berners-Lee releases the first World Wide Web software. |
1
|
1992 |
University of Michigan developers release the first LDAP software. |
1
|
1993 |
NDS debuts in Netware 4.0. |
1
|
July 1993 |
LDAP specification first published as RFC 1487. |
1
|
December 1995 |
First standalone LDAP server (SLAPD) ships as part of U-M LDAP 3.2 release. |
1
|
April 1996 |
Consortium of more than 40 leading software vendors endorses LDAP as the Internet directory service protocol of choice. |
1
|
1996 |
Netscape Hires Tim Howes, Mark Smith, and Gordon Good from University of Michigan. Howes serves as a directory server architect. |
2
|
September 1997 |
Sun Microsystems releases Sun Directory Services 1.0, derived from U-M LDAP 3.2 |
3
|
November 1997 |
LDAPv3 named the winner of the PC Magazine Award for Technical Excellence. |
1
|
December 1997 |
LDAPv3 approved as a proposed Internet Standard. |
1
|
1998 |
The OpenLDAP Project was started by Kurt Zeilenga. The project started by cloning the LDAP reference source from the University Of Michigan. |
5
|
January 1998 |
Netscape ships the first commercial LDAPv3 directory server. |
1
|
March 1998 |
Innosoft acquires Mark Walh’s Critical Angle company, relesases LDAP directory server product 4.1 one month later. |
4
|
July 1998 |
Sun Microsystems ships Sun Directory Server 3.1, implementing LDAPv3 standards |
3
|
July 1998 |
Estimated number of Internet hosts exceeds 36 million. |
1
|
1999 |
AOL acquires Netscape and forms the iPlanet Alliance with Sun Microsystems. |
6
|
March 1999 |
Innosoft team, led by Mark Wahl, releases Innosoft Distributed Directory Server 5.0 |
3
|
March 2000 |
Sun Microsystems acquires Innosoft, merges Innosoft directory code with iPlanet. This forms the foundation for the iPlanet Directory Access Router. |
3
|
October 2001 |
The iPlanet Alliance ends and Sun and Netscape fork the codebase. |
6
|
October 2004 |
Apache Directory Server Top Level Project is formed after 1 year in incubation |
3
|
December 2004 |
RedHat Purchases Netscape Server products |
2
|
2005 |
Sun Microsystems initiates the OpenDS project. An open source directory server based on the Java platform. |
7
|
June 2005 |
RedHat Releases Fedora Directory Server |
2
|
October 2006 |
Apache Directory Server 1.0 is released |
3
|
2007 |
UnboundID releases its directory server |
12
|
2008 |
AOL Stops Supporting Netscape Products |
8
|
April 2009 |
Oracle purchases Sun Microsystems |
9
|
May 2009 |
RedHat changes the Fedora Directory Server to 389 Directory Server |
10
|
Feb 1, 2010 |
ForgeRock is founded |
3
|
Dec 2010 |
ForgeRock releases OpenDJ |
11
|
July 2011 |
Oracle releases Oracle Unified Directory |
13
|
Sources:
(1) Understanding and Deploying LDAP Directory Services; Second Edition; Timothy A. Howes, Ph.D., Mark C. Smith, and Gordon S. Good.
(2) 389 Directory Server; History (http://directory.fedoraproject.org/wiki/History).
(3) Email exchange with Ludovic Poitou (ForgeRock).
(4) Press Release, March 16th, 1998; “Innosoft Acquires LDAP Technology Leader Critical Angle Inc. (http://www.pmdf.process.com/press/critical-angle-acquire.html).
(5) OpenLDAP; Wikipedia (http://en.wikipedia.org/wiki/OpenLDAP).
(6) iPlanet; Wikipedia (http://en.wikipedia.org/wiki/IPlanet).
(7) OpenDS; Wikipedia (http://en.wikipedia.org/wiki/OpenDS).
(8) Netscape; Wikipedia (http://en.wikipedia.org/wiki/Netscape).
(9) Press Release, April 20th, 2000; “Oracle Buys Sun” (http://www.oracle.com/us/corporate/press/018363).
(10) 389 Directory Server; 389 Change FAQ (http://directory.fedoraproject.org/wiki/389_Change_FAQ).
(11) OpenDJ; Wikipedia (http://en.wikipedia.org/wiki/OpenDJ).
(12) Email exchange with Nick Crown (UnboundID).
(13) Press Release, July 20th, 2011; “Oracle Announces Oracle Unified Directory 11g” (http://www.oracle.com/us/corporate/press/434211).