The central LDAP Directory Service is a network-accessible database that provides information about people, applications, and workgroups. The most common use of the Directory Service is to authenticate users for web pages, MySanDiego, and to support workgroup integration into applications. The current Directory Service requirements exceed the capacity of a single server. The Directory Service is load balanced using a combination of hardware and DNS load balancers. This architecture allows the Directory Service to be highly available and will continue to be available even in the event of a major campus outage.