OpenDS is an open source community project building a free and comprehensive next generation directory service, based on LDAP and DSML standards.LDAP made easy, fully featured LDAPv3 compliant directory server with multi-master replication, advance command line interface, graphical user interface and much more... Runs anywhere, in less than 3 minutes. The OpenDS directory server is an LDAPv3 compliant directory server written entirely in Java.