Ganymede is an open source network directory management framework, designed to allow administrator teams to collaboratively manage subsets of an organization's network directory services, such as NIS, DNS, Active Directory / LDAP, DHCP, and RADIUS, among others. First announced and released at the 1998 USENIX LISA conference, Ganymede has been under public development and use since then.Ganymede uses a central server which supports clients connecting via Java RMI.