NAPTR record

Abstract: A preferred embodiment of the present invention can accept an indication of a domain name or set of domain names from interested entity. The desired domain names are names that an interested entity desires to register through a domain name registration system or systems, such as that operated by a registry-accredited registrar. The system can closely monitor the domain name registry or registrar databases used to provide domain name resolution or registration over a distributed network, such as the Internet, and determine the expiration or availability of the name or names supplied by the interested entity. When a desired domain name appears to be available, the system can register or re-register the domain name through a domain registration service. If there is more than one interested entity for a domain name, the system can also facilitate an auction for the domain name.

Abstract: When a network resource request having a domain name is received, it is determined whether the network resource can be accessed from the domain name. Rather than, or in addition to, displaying an error message or processing a search request in response to determining that a network resource can not be accessed, the domain name can instead be redirected to a registration service where the domain name can be automatically used to perform a registration request and determine domain name availability. When the domain name is not available for registration, domain name registrant information is provided. However, when the domain name is determined available, a registration form is provided. For example, such a domain name may be redirected from the autosearch feature of a web browser to a service, which determines that the domain name is available for registration enabling a potential registrant to register the available domain name by selecting a domain name registration provider from a list of domain name registration providers.

Abstract: This document describes a Dynamic Delegation Discovery System (DDDS) Database using the Domain Name System (DNS) as a distributed database of Rules. The Keys are domain-names and the Rules are encoded using the Naming Authority Pointer (NAPTR) Resource Record (RR).

Abstract: The requirements document for URN resolution systems defines the concept of a "resolver discovery service". This document describes the first, experimental, RDS. It is implemented by a new DNS Resource Record, NAPTR (Naming Authority PoinTeR), that provides rules for mapping parts of URIs to domain names. This memo defines an Experimental Protocol for the Internet community.