Proposed Unsponsored TLD Agreement: Appendix C, Section 3 (.biz)

Proposed Unsponsored TLD Agreement: Appendix C, Section 3 (.biz) Posted: 27 April 2001

C.3 Zone File generation, Distribution, and Publication

NeuLevel will generate and propagate DNS zone file updates to the DNS server array incrementally as transactional updates initiated by the SRS resulting from new domain name registrations. Updates will be initiated from the SRS, and queued and propagated to the DNS server array in near real-time consistent with the applicable service level requirements.

The NeuLevel registry would store only the following resource records in the zone file database:

• A single SOA record.
• A number of NS and A records, up to a maximum of 13 of each, for the TLD DNS servers for .biz
• Domain name and delegated nameservers (NS Records)
• Name-server host names and their associated IP addresses (A Records)

NeuLevel will implement, on a reasonable schedule, glue-generation and pruning criteria specified by ICANN from time to time.

Zone File Access Program

NeuLevel will provide a data mart to enable registrars to access the zone file in bulk. Our proposed query program will:

• Reduce the load placed on the nameservers by data mining programs. (For example, some ISPs use data mining to accelerate domain name availability checking.)
• Bind subscribers to limiting conditions as to how they can use the data, according to the terms set forth in Appendix N.
• Provide the entire database in a BIND format that will facilitate such services as suggesting alternate names, accelerating DNS queries, and compiling industry statistics.

Logging and Data Back-up

All zone files and updates are generated using information from the SRS database. All updates are recorded as database transaction logs.

Zone File-Generation Architecture

Zone file information is stored in the SRS database (along with all other registry data) and replicated to a zone distribution server within defined service levels. See Appendix D, item 3.5.1. The database stored on the zone distribution server is in turn replicated out to a database at the nameserver data centers.

Standards Compliance

The DNS name server array will comply with the IETF standards for the DNS (RFC1035, RFC2181, RFC 2182). In addition, DNS extensions (security, transactional updates, internationalization, etc.) adopted or proposed by IETF will be assessed and supported consistent with industry acceptance and prudent operational considerations as part of the release requirements definition for the initial registry release and each subsequent one.

NeuLevel expects to implement all applicable best-practice recommendations contained in RFC2870 (Root Nameserver Operational Requirements), as they become practicable.