August 2026 - dns-wg - mailman.ripe.net

Stale IPv6 glue in the root zone for four ccTLDs
by Patrik Wallstrom 25 Aug '26

25 Aug '26

Hi, In a recent run of my gonemaster analysis of all the TLDs, I just discovered that four ccTLDs has stale glue in the root for the RIPE nameservers, https://gonemaster.evilbit.de/analysis/tags/OUT_OF_BAILIWICK_ADDR_MISMATCH?… It's for the ccTLDs ne, ps, sd, and tj, which as the nameservers [ne|ps|sd|tj].cctld.authdns.ripe.net that all have old glue. I have not seen this before, but also I have just updated the testcase specification for this specifically, as the root does not always give all the glue from the root. Just a heads up to whoever manages this glue. / Patrik

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Fwd: Draft liaison statement on Public ENUM under e164.arpa for the September 2026 ITU-T Study Group 2 meeting
by Hisham Ibrahim 17 Aug '26

17 Aug '26

Dear colleagues, I am sharing this message the DNS, Database, RIPE NCC Services Working Group mailing lists to ensure all relevant working groups are informed. If you wish to share thoughts in response, please reply to the thread on the RIPE NCC coop-WG mailing list. Regards Hisham ---------- Forwarded message --------- From: Hisham Ibrahim <HMI(a)ripe.net> Date: Mon, 17 Aug 2026 at 17:40 Subject: Draft liaison statement on Public ENUM under e164.arpa for the September 2026 ITU-T Study Group 2 meeting To: <cooperation-wg(a)ripe.net> Dear colleagues, Following the earlier discussions on Public ENUM under e164.arpa, I have prepared the following draft liaison statement for the September 2026 ITU-T Study Group 2 meeting. In my draft I tried to: - clarify the RIPE NCC’s position following SG2-C-0196*, - support the confirmation of the revised interim procedures**, - outline how the responses to TSB Circular 123*** could inform the treatment of individual delegations, - and provide an updated overview of the operational status of the current delegations. I would appreciate feedback on my draft and I would appreciate it if you could share any comments or concerns, particularly on the technical, procedural or governance aspects, by 25 August, so that the RIPE NCC can incorporate the feedback before finalizing the submission. Many thanks in advance for your review. Regards, Hisham * https://www.ripe.net/media/documents/ENUM_liaison_statement_ITU_T_SG2.pdf ** https://www.itu.int/en/ITU-T/inr/enum/Pages/procedures.aspx *** https://www.itu.int/md/T25-TSB-CIR-0123/en To: ITU-T Study Group 2, September 2026 Meeting Title: RIPE NCC liaison statement on ENUM (e164.arpa) Dear colleagues, The RIPE NCC thanks ITU-T Study Group 2, the Telecommunication Standardization Bureau, the Internet Architecture Board, Member States and ENUM delegation operators for their continued engagement concerning Public ENUM under e164.arpa. The RIPE NCC operates the e164.arpa zone as the IAB’s designated operator under the established coordination arrangements involving the IAB, ITU-T and the RIPE NCC. 1. RIPE NCC position At the February 2026 meeting of Study Group 2, the RIPE NCC submitted contribution SG2-C-0196. The contribution arose from an operational question concerning support for ENUM domain objects through the Registration Data Access Protocol, but also raised broader questions concerning the future status of ENUM and e164.arpa. Following subsequent engagement with the IAB, ENUM delegation operators and members of the RIPE community, the RIPE NCC recognizes that those broader questions did not accurately reflect the established distribution of responsibilities. This statement therefore clarifies and supersedes the relevant parts of SG2-C-0196. For the avoidance of doubt, the RIPE NCC supports the continued operation of Public ENUM under e164.arpa and is not proposing its closure. SG2-C-0196 no longer represents a request for Study Group 2 to determine the technical or architectural future of ENUM or e164.arpa. Any future consideration of a system-wide change would require coordination involving the IAB, the relevant IETF and ITU-T processes, the RIPE NCC and affected stakeholders. 2. Operational status and revised procedures The RIPE NCC has reviewed the 46 current delegations recorded in the RIPE Database. Of these, 23 showed no DNS issue at the top delegation level, 17 appeared non-operational and six showed partial DNS issues. These findings identify a registry-maintenance and data-accuracy issue. They do not provide a sufficient basis for a system-wide conclusion concerning Public ENUM or e164.arpa. The RIPE NCC therefore welcomes the revised Interim procedures for Geographic Country Codes (ENUM administration ad interim) contained in TD423 Rev.1/PLEN. The revised procedures provide an appropriate mechanism for addressing individual non-operational or expired temporary delegations while preserving functioning delegations and the ability of Member States to confirm, update, withdraw or subsequently restore their delegations. Responses to TSB Circular 123 may provide useful information concerning the status and intentions of individual national delegations. The RIPE NCC considers that such information should inform individual cases under the revised procedures, rather than a system-wide conclusion concerning Public ENUM or e164.arpa. 3. Request to Study Group 2 The RIPE NCC respectfully invites Study Group 2 to: - confirm that the revised procedures contained in TD423 Rev.1/PLEN will come into force at the September 2026 meeting and will provide the applicable mechanism for addressing individual non-operational or expired temporary delegations; and - continue coordination with the IAB, the RIPE NCC, the relevant IETF processes and affected stakeholders on any broader questions concerning the technical or long-term status of ENUM and e164.arpa. Once the revised procedures come into force, the RIPE NCC intends to apply them systematically and transparently, including by refreshing its technical assessment, engaging with relevant delegation operators where possible and submitting substantiated cases to TSB. The question of Registration Data Access Protocol support is separate from the continued operation of Public ENUM and will be considered through the appropriate technical and community processes. The RIPE NCC remains committed to working constructively with Study Group 2, TSB, the IAB, Member States, delegation operators and the RIPE community to maintain e164.arpa in a stable, accurate and technically sound manner.

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DNS Resolver Recommender
by Richter, Robert 14 Aug '26

14 Aug '26

Hello everybody! We built the tool “DNS Resolver Recommender”: * https://dns.diic-hpi.org It is a small DoH measurement tool that should catch DNS behavior from the user’s browser. It measures a list of 200+ public DoH resolvers for both cached and uncached domains and recommends the best one for the user. Upon opt-in, we also collect the (anonymized) measurement data for research (see the Privacy Disclosure<https://dns.diic-hpi.org/privacy.html>). We made every effort to collect only data that maintains privacy. In the future, we also want to release snapshots of our data to the community. Therefore, I am writing to this mailing list: We would greatly appreciate it if you tried the tool and, if you feel comfortable, also activate the opt-in to support our research work. Thank you in advance! Best regards, Robert

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Resolved: NRTM issue affecting reverse DNS provisioning
by Florian Obser 13 Aug '26

13 Aug '26

Dear colleagues, Between 00:06 on 2 August and 12:30 (UTC) on 4 August, we experienced an issue affecting our Near Real Time Mirroring (NRTM) service. Since our reverse DNS provisioning system also uses NRTM, updates to the global DNS were delayed over this period. All pending updates were processed once we applied a fix to the NRTM issue. We plan to publish a brief post-mortem report with more details soon. You can always check the status of our services at status.ripe.net. Kind regards, Florian Obser Principal Engineer, DNS RIPE NCC

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Nominet DNS Fund
by Lizzie Griffiths 13 Aug '26

13 Aug '26

Hello, We are excited to share that the Nominet DNS Fund is now open for its second application window, with £650,000 available to support open source projects that underpin the internet's core infrastructure. Following a strong first round, this latest funding window brings increased investment and greater flexibility. We are looking to support both new and existing projects, including one-off initiatives and longer-term work that improves the sustainability of essential DNS technologies. If you are working on open source DNS software, tooling, or infrastructure - this is an opportunity to secure funding for work that is critical but often under-resourced. Successful projects from the first round span DNS libraries, testbeds and operational tools used by registries around the world, highlighting the real-world impact of this community. Applications are open now and will close on 17th August at 9am BST. Find out more and apply on the Nominet website: https://nominet.uk/our-impact/nominet-dns-fund/

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