SAC045 was published on 15 November 2010. All SSAC publications can be found at https://www.icann.org/groups/ssac/documents.


Recommendation DescriptionCurrent Phase

Recommendation 1

ICANN should educate users so that, eventually, private networks and individual hosts do not attempt to resolve local names via the root system of the public DNS.

CLOSED

Recommendation 2The SSAC recommends that ICANN promote a general awareness of the potential problems that may occur when a query for a TLD string that has historically resulted in a negative response begins to resolve to a new TLD. Specifically, ICANN should:
  • Study invalid TLD query data at the root level of the DNS and contact hardware and software vendors to fix any programming errors that might have resulted in those invalid TLD queries. The SSAC is currently exploring one such problem as a case study, and the vendor is reviewing its software. Future efforts to contact hardware or software vendors, however, are outside SSAC's remit. ICANN should consider what if any organization is better suited to continue this activity.

CLOSED

Recommendation 3ICANN should contact organizations that are associated with strings that are frequently queried at the root. Forewarn organizations who send many invalid queries for TLDs that are about to become valid, so they may mitigate or eliminate such queries before they induce referrals rather than NXDOMAIN responses from root servers.

CLOSED

Recommendation 4The SSAC recommends that ICANN consider the following in the context of the new gTLD program.
  • Prohibit the delegation of certain TLD strings. RFC 2606, "Reserved Top Level Domain Names," currently prohibits a list of strings, including test, example, invalid, and localhost. ICANN should coordinate with the community to identify a more complete set of principles than the amount of traffic observed at the root as invalid queries as the basis for prohibiting the delegation of additional strings to those already identified in RFC 2606.

CLOSED

Recommendation 5The SSAC recommends that ICANN alert the applicant during the string evaluation process about the pre-existence of invalid TLD queries to the applicant's string. ICANN should coordinate with the community to identify a threshold of traffic observed at the root as the basis for such notification.

CLOSED

Recommendation 6The SSAC recommends that ICANN define circumstances where a previously delegated string may be re-used, or prohibit the practice.

CLOSED

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