The Netlogon Remote Protocol is a remote procedure call (RPC) interface that is used for user and machine authentication on domain-based networks. The Netlogon Remote Protocol RPC interface is also used to replicate the database for backup domain controllers (BDCs).
The Netlogon Remote Protocol is used to maintain domain relationships from the members of a domain to the domain controller (DC), among DCs for a domain, and between DCs across domains. This RPC interface is used to discover and manage these relationships.
Sections 1.5, 1.8, 1.9, 2, and 3 of this specification are normative. All other sections and examples in this specification are informative.