New Top Level Domains Geoff Huston IAHC Top
- Slides: 20
New Top Level Domains Geoff Huston IAHC
Top Level Domain Names l Country-code name spaces. au. jp. sg. de l Special purpose name spaces. in-addr. arpa. int. mil l generic use name spaces. com. net. org
Who’s who in Domain Names ISOC Charter and Appeal IAB Charter and Appeal Internet Assigned Numbers Authority IANA . (root name servers) Delegation . com. net. org. edu. gov Inter. NIC services. au Delegated National Domain Administrators Network Solutions
Generic TLDs l Inter. NIC NSF Co. A. com. net. org – Growth Issues - Contract service levels falling Charging for. com Exclusive trader concerns Pressure to create “natural competition” Renegade root name domains appear
But do we need more g. TLDs? We’re here. . because we’re here
IAHC l IANA proposal to create competition in supply of g. TLDs – more top level domains – more operators of these domains – ISOC endorsement l International Ad-Hoc Committee to – investigate policy issues – implement more g. TLDs
Features of the IAHC proposal – international – shared – operation of a DNS registry environment for additional g. TLDs
Shared Operation l The Registry and the Registrars – the registry is the data repository – The registrar is the agent providing data updates
The Registrar’s Role l l certify the client’s identify certify the client’s request certify the validity of the transaction pass the data to the registry
Shared Registrars l compete on – services – price – charge models
Shared Registrars l cooperate on – domain policy – validity and integrity of registry transactions – registry interaction format – synchronisation of transactions
Shared Registrars l competitive access to a common underlying resource
The Registry’s Role l provide a public record of association of – an entity with – a public resource (Domain Name) l l provide processes to allow management of such associations a network resource title office
Shared Registry l l single primary zone file constructed from registry database multiple entry points for – secure mechanism for initiating database update – secure mechanism for distributing data updates l May use replicated or distributed data models
A Replicated Registry model l l Each registry has a unique identifier Each data item has a single-value registry field user: Handle: GH 29 -AU user: Registry: whois. aunic. net
A Replicated Registry model l All updates to the data item are passed to the referenced registry – The referenced registry imposes synchronisation locks for the data item – The referenced registry initiates flood update whois. reg 1 whois. reg 2 update GH 29 -AU whois. aunic. net update GH 29 -AU
A Distributed Registry model l l Each data item exists in only one registry All references to the data item are a compound reference of registry identifier and a locally significant handle whois: //whois. aunic. net/user/GH 29 -AU l All updates are undertaken directly at the referenced registry
A Distributed Registry model l The primary zone file is a data item of references to delegated entries for acme. biz whois: //whois. reg 1/primary-zone/biz acme. biz: whois: //whois. reg 1/primary-zone/acme. biz domain: whois: //whois. aunic. net/domain/acme. biz
Shared Registeries l l Do not exist at present Further effort required: – developmental effort – trial implementations – testing – initial deployment – scaling of deployment
Activities l l l Completion of IAHC report Agreement from referenced parties Implementation – g. TLDs – selection of registrars – development of shared registeries – oversight and evolution
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