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OARC 46 Call for Contributions
by Willem Toorop 22 Feb '26

22 Feb '26

This workshop will be a hybrid event. Date - 16-17 May 2026 Location - Edinburgh, Scotland Times - approximately 09:00-16:00 UTC (Local time BST is UTC +1 ) Adjacent to - RIPE 92 (18 - 22 May 2026, https://ripe92.ripe.net/) Deadline for Submissions - 2026-03-06 23:59 UTC https://indico.dns-oarc.net/event/56/abstracts/ All DNS-related subjects and discussion topics are welcome although we're particularly keen to hear more about operational and security related experiences, best practices and practical advice; both for newcomers to the DNS arena and those who have been around for longer who want to learn more about new features and opportunities to improve resilience, security and privacy. (These topics we think will complement the usual high-quality data-based research submissions we always hope to receive!) If you have something interesting to share with the community that lies outside of the focus above, please don't be put off - if it's good, we'll be happy to include it. If you'd like to offer a talk, but are not quite sure what to pick, here's a non-exhaustive list of ideas: 1. *Operations & Deployment* * Configuration management, deployment processes, and interoperability experiences. * Tools, tips, and making effective use of DNS software features. 2. *Performance, Resilience & Scaling* * Provisioning, load-balancing, and planning for resilience. * DNS performance management, efficiency improvements, and metrics. * Monitoring infrastructure: log pipelines, analytics, and anomaly detection. 3. *Security, Privacy & Policy* * DoS attacks, DNS abuse, DNSSEC signing and validation. * Privacy considerations, for example: encrypted transport, qname minimization, data anonymization. * Relevant global and regional policies, legislation, and compliance. 4. *Research & Innovation* * Data-driven testing, measurement, and analysis. * New protocols, protocol extensions, and next-generation namespace management. 5. *Lessons & Learnings* * Outage experiences, recovery stories, and cautionary tales For further details please see https://www.dns-oarc.net/oarc46 Willem Toorop, for the DNS-OARC Programme Committee

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Pretix security incident
by Teun Vink 16 Feb '26

16 Feb '26

Hello, We were notified by Pretix, the company hosting the ticketing system we have used for our events for the last few years, of a security incident, which in theory could lead to exfiltration of personal information of people who bought a ticket. The issue in their software has been resolved by Pretix, and no evidence has been found that this vulnerability has been exploited. More information on this can be found here: https://pretix.eu/about/en/blog/20260216-release-2026-1-1/ We realise that many of you use unique email addresses to identify sources of spam, so if you do see any unexpeced email on the address you used to for obtaining a ticket, please do let us know, so we can contact Pretix about it. Even although this doesn't help for this incident, for future events we will make sure that we will quickly remove all personally identifiable information (PII) after the event has taken place. And of course we will make sure to to this for past events now. On behalf of the NLNOG board, Teun

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Spoofer Report for NLNOG for Jan 2026
by CAIDA Spoofer Project 08 Feb '26

08 Feb '26

In response to feedback from operational security communities, CAIDA's source address validation measurement project (https://spoofer.caida.org) is automatically generating monthly reports of ASes originating prefixes in BGP for systems from which we received packets with a spoofed source address. We are publishing these reports to network and security operations lists in order to ensure this information reaches operational contacts in these ASes. This report summarises tests conducted within nld. Inferred improvements during Jan 2026: none inferred Source Address Validation issues inferred during Jan 2026: ASN Name First-Spoofed Last-Spoofed 28685 ASN-ROUTIT 2017-03-26 2026-01-29 39647 REDHOSTING 2019-12-02 2026-01-26 3920 IMS-RTFM 2023-10-06 2026-01-30 62353 ASN-DATAPLACE 2023-12-12 2026-01-23 35316 PRODACOM 2025-12-17 2026-01-27 134835 SNL-HK 2026-01-22 2026-01-22 Further information for these tests where we received spoofed packets is available at: https://spoofer.caida.org/recent_tests.php?country_include=nld&no_block=1 Please send any feedback or suggestions to spoofer-info(a)caida.org

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[off-topic] looking for room, shared flat, flat
by Arnold Nipper 20 Jan '26

20 Jan '26

Dear community A good friend of mine is looking for a room, a shared flat, or a flat. where: Leiden or Noordwijk when: 2026-01-31 -- 2026-04-30 price: max. 1.500,00 EUR / month (invoice needed!) He has been offered the opportunity to continue his doctoral studies at ESA in Noordwijk on short notice. Any information would be appreciated. Please send me a private message. TIA and greetings Arnold -- Keep calm, keep distance, keep connected! Arnold Nipper email: arnold(a)nipper.de mobile: +49 172 2650958

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Spoofer Report for NLNOG for Dec 2025
by CAIDA Spoofer Project 08 Jan '26

08 Jan '26

In response to feedback from operational security communities, CAIDA's source address validation measurement project (https://spoofer.caida.org) is automatically generating monthly reports of ASes originating prefixes in BGP for systems from which we received packets with a spoofed source address. We are publishing these reports to network and security operations lists in order to ensure this information reaches operational contacts in these ASes. This report summarises tests conducted within nld. Inferred improvements during Dec 2025: ASN Name Fixed-By 207176 OPENFIBER 2025-12-14 Further information for the inferred remediation is available at: https://spoofer.caida.org/remedy.php Source Address Validation issues inferred during Dec 2025: ASN Name First-Spoofed Last-Spoofed 28685 ASN-ROUTIT 2017-03-26 2025-12-22 33915 TNF 2019-01-28 2025-12-15 39647 REDHOSTING 2019-12-02 2025-12-24 207176 OPENFIBER 2022-09-30 2025-12-10 3920 IMS-RTFM 2023-10-06 2025-12-26 35316 PRODACOM 2025-12-17 2025-12-31 Further information for these tests where we received spoofed packets is available at: https://spoofer.caida.org/recent_tests.php?country_include=nld&no_block=1 Please send any feedback or suggestions to spoofer-info(a)caida.org

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Spoofer Report for NLNOG for Nov 2025
by CAIDA Spoofer Project 08 Dec '25

08 Dec '25

In response to feedback from operational security communities, CAIDA's source address validation measurement project (https://spoofer.caida.org) is automatically generating monthly reports of ASes originating prefixes in BGP for systems from which we received packets with a spoofed source address. We are publishing these reports to network and security operations lists in order to ensure this information reaches operational contacts in these ASes. This report summarises tests conducted within nld. Inferred improvements during Nov 2025: none inferred Source Address Validation issues inferred during Nov 2025: ASN Name First-Spoofed Last-Spoofed 28685 ASN-ROUTIT 2017-03-26 2025-11-25 33915 TNF 2019-01-28 2025-11-26 39647 REDHOSTING 2019-12-02 2025-11-27 207176 OPENFIBER 2022-09-30 2025-11-01 3920 IMS-RTFM 2023-10-06 2025-11-27 202585 2025-10-04 2025-11-18 Further information for these tests where we received spoofed packets is available at: https://spoofer.caida.org/recent_tests.php?country_include=nld&no_block=1 Please send any feedback or suggestions to spoofer-info(a)caida.org

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NLNOG Nieuwjaarsborrel / New Year's Drink 2026
by Nick Bouwhuis 01 Dec '25

01 Dec '25

Hoi allemaal, hi everyone! Het einde van het jaar nadert, dus is het een mooi moment om de NLNOG Nieuwjaarsborrel aan te kondigen. Net als voorgaande jaren zijn we weer welkom in De Rechtbank in Utrecht, deze keer op vrijdag 30 januari 2026. We hopen jullie allemaal daar te zien om elkaar onder het genot van een drankje en wat borrelhapjes een fantastisch nieuw jaar toe te wensen. We vragen je om je te registreren als je van plan bent om erbij te zijn, zodat we een goed beeld hebben van hoeveel mensen we kunnen verwachten. Toegang en drankjes zijn dankzij al onze fantastische sponsoren natuurlijk helemaal gratis! Nog even de details op een rijtje: Waar: De Rechtbank, Korte Nieuwstraat 14, 3512 NM Utrecht Wanneer: vrijdag 30 januari 2026 vanaf 19.00 uur Entree: gratis, maar wel aanmelden via https://nlnog.net/tickets Mocht je collega’s, (mede-)studenten of andere mensen weten waarvan je denkt dat ze het leuk vinden om ook eens een kijkje te komen nemen, deel deze uitnodiging dan vooral met ze. Ze zijn van harte welkom! We wensen je fijne feestdagen toe en hopen je de 30e in Utrecht te zien. (English) We’re at the end of the year, so it’s time to announce the NLNOG New Year’s Drink! Just like in previous years, we are welcome at De Rechtbank in Utrecht, this time on Friday, January 24th, 2025. We hope to see you all there to wish each other a fantastic new year while enjoying drinks and snacks! If you’re planning on coming, please register so we know how many people we can expect. Attendance and drinks are all free of charge thanks to our amazing sponsors! Here are the details: Where: De Rechtbank, Korte Nieuwstraat 14, 3512 NM Utrecht When: Friday, January 30th, 2026, starting at 19.00h Attendance: free of charge, but please register at https://nlnog.net/tickets If you know any colleagues, fellow students, or other people who you think may be interested in joining us, please share this invitation, they are very welcome! Enjoy the holidays, and we hope to see you on the 24th in Utrecht. See you in court! The NLNOG Board Cas, Niels, Niels, Robert, Nick en Teun

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IANA AS Numbers Registry Update
by David Dong 23 Nov '25

23 Nov '25

Hi, The IANA AS Numbers registry has been updated to reflect the allocation of the following block to LACNIC: 274845-275868 Assigned by LACNIC 2025-11-19 Registry: http://www.iana.org/assignments/as-numbers/ The allocation was made as per the Policy for Allocation of ASN Blocks to Regional Internet Registries: https://www.icann.org/resources/pages/global-policy-asn-blocks-2010-09-21-en Best regards, David Dong IANA Services Sr. Specialist

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Spoofer Report for NLNOG for Oct 2025
by CAIDA Spoofer Project 08 Nov '25

08 Nov '25

In response to feedback from operational security communities, CAIDA's source address validation measurement project (https://spoofer.caida.org) is automatically generating monthly reports of ASes originating prefixes in BGP for systems from which we received packets with a spoofed source address. We are publishing these reports to network and security operations lists in order to ensure this information reaches operational contacts in these ASes. This report summarises tests conducted within nld. Inferred improvements during Oct 2025: ASN Name Fixed-By 202585 2025-10-04 28685 ASN-ROUTIT 2025-10-30 Further information for the inferred remediation is available at: https://spoofer.caida.org/remedy.php Source Address Validation issues inferred during Oct 2025: ASN Name First-Spoofed Last-Spoofed 33915 TNF 2019-01-28 2025-10-28 39647 REDHOSTING 2019-12-02 2025-10-28 3920 IMS-RTFM 2023-10-06 2025-10-30 202585 2025-10-04 2025-10-04 42755 DATAFIBER 2025-10-08 2025-10-08 Further information for these tests where we received spoofed packets is available at: https://spoofer.caida.org/recent_tests.php?country_include=nld&no_block=1 Please send any feedback or suggestions to spoofer-info(a)caida.org

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Spoofer Report for NLNOG for Sep 2025
by CAIDA Spoofer Project 08 Oct '25

08 Oct '25

In response to feedback from operational security communities, CAIDA's source address validation measurement project (https://spoofer.caida.org) is automatically generating monthly reports of ASes originating prefixes in BGP for systems from which we received packets with a spoofed source address. We are publishing these reports to network and security operations lists in order to ensure this information reaches operational contacts in these ASes. This report summarises tests conducted within nld. Inferred improvements during Sep 2025: none inferred Source Address Validation issues inferred during Sep 2025: ASN Name First-Spoofed Last-Spoofed 28685 ASN-ROUTIT 2017-03-26 2025-09-30 33915 TNF 2019-01-28 2025-09-26 8587 Infracom 2019-10-28 2025-09-29 39647 REDHOSTING 2019-12-02 2025-09-18 3920 IMS-RTFM 2023-10-06 2025-09-25 39686 ASN-EUROFIBER 2025-04-28 2025-09-22 60893 ARTOFAUTOMATION 2025-09-19 2025-09-19 Further information for these tests where we received spoofed packets is available at: https://spoofer.caida.org/recent_tests.php?country_include=nld&no_block=1 Please send any feedback or suggestions to spoofer-info(a)caida.org

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