Okay, wait. How is the Apache Directory the "flagship product" of the Apache Software? Apache HTTP is the whole basis of the existence of Apache Software. It was formed in 1999. So, I removed the words, "It is the flagship product".
'''Apache Directory''' is an [[Open-source software|open source]] project of the [[Apache Software Foundation]]. Its flagship product, theThe '''Apache Directory Server''', originally written by Alex Karasulu, is an embeddable [[directory server]] entirely written in [[Java (programming language)|Java]]. It was certified [[Lightweight Directory Access Protocol|LDAP]]v3-compatible by [[The Open Group]] in 2006.<ref>{{Cite web |title=The Apache Software Foundation Is Latest Technology Leader To Embrace LDAP Standard And Achieve Open Group Certification |url=http://opengroup.org/comm/press/11oct06.html |publisher=The Open Directory |date=11 October 2006 |access-date=30 June 2009 }}</ref><ref>{{Cite web |title=What Apache Directory Server is |url=http://directory.apache.org/apacheds/1.0/11-what-apache-directory-server-is.html |access-date=30 June 2009 |quote=the server has been successfully certified by the Open Group in September 2006 ("LDAP certified"). |archive-url=https://web.archive.org/web/20090531195522/http://directory.apache.org/apacheds/1.0/11-what-apache-directory-server-is.html |archive-date=31 May 2009 |url-status=dead }}</ref> Besides LDAP, the server supports other protocols as well, and a [[Kerberos (protocol)|Kerberos]] server.<ref>{{Cite web |title=What Apache Directory Server is |url=http://directory.apache.org/apacheds/1.0/11-what-apache-directory-server-is.html |access-date=30 June 2009 |quote=Other network protocols like Kerberos and NTP are supported |archive-url=https://web.archive.org/web/20090531195522/http://directory.apache.org/apacheds/1.0/11-what-apache-directory-server-is.html |archive-date=31 May 2009 |url-status=dead }}</ref>