Highclere Castle, Berkshire, from Downton Abbey. The 5,000-acre estate and Jacobethan castle shot to fame due to ITV's hit series about British class. In fact, Downton could well have saved the property, owned by the Earl and Countess of Carnarvon, from closure. It needed Â£11.75 million worth of repairs prior to the series.
LDAP stands for Lightweight Directory Access Protocol. As the name suggests, it is a lightweight protocol for accessing directory services, specifically X.500-based directory services. LDAP runs over TCP/IP or other connection oriented transfer services.
Choosing an LDAP Server. Since LDAP is an open standard protocol, all the information needed to create an LDAPv3-compliant server is freely available (see the LDAP Specifications page for links to the relevant documents). As such, many organizations offer LDAP server software, whether proprietary or open source.