 Support for RFC 2136 is also an integral part of many directory services, including LDAP and Windows' Active Directory domains.In Microsoft Windows networks, dynamic DNS is an integral part of Active Directory, because domain controllers register their network service types in DNS so that other computers in the domain (or forest) can access them.Increasing efforts to secure Internet communications today involve encryption of all dynamic updates via the public Internet, as these public dynamic DNS services have been abused increasingly to design security breaches.