- dns-wg - mailman.ripe.net

Hidden master maintenance
by Anand Buddhdev 05 Mar '20

05 Mar '20

Dear colleagues, The RIPE NCC runs a pair of hidden masters for transferring in zones from various sources, and distributiong these zones to the K-root and reverse DNS anycast clusters that we operate. On Thursday 5 March 2020, between 12:00 and 17:00 UTC, we will be doing maintenance on one of these servers. In this duration, the server will be offline for some time. Its IP addresses are: 93.175.159.250 2001:67c:2d7c:66::53 This maintenance will not affect service in any way. The other hidden master will continue to function and keep all our DNS servers up to date. After the maintenance, I will send a follow-up message. Regards, Anand Buddhdev RIPE NCC

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New on RIPE Labs: Detecting and Taking Down Fraudulent Webshops at the .nl ccTLD
by Mirjam Kuehne 26 Feb '20

26 Feb '20

Dear colleagues, In this article, Giovane Moura and Thymen Wabeke describe how they detected and took down a large number of fraudulent web sites using tools developed by SIDN Labs: https://labs.ripe.net/Members/giovane_moura/detecting-and-taking-down-fraud… Kind regards, Mirjam Kühne RIPE NCC

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Call for contributions to the RIPE 80 meeting of the dns-wg
by Dave Knight 20 Jan '20

20 Jan '20

Colleagues, RIPE 80 in Berlin is 16 weeks away and we’d like to form our agenda. Please submit your presentation ideas, or suggestions for discussions to <dns-wg-chairs(a)ripe.net>. Please don’t submit anything using the meeting submission web form, it’s not intended for submission of content to working groups. Thanks! dave, for the working group chairs

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Call for Presentations: 33rd DNS-OARC Workshop, Paris, France, May 09 - 10th 2019
by Dave Knight 13 Jan '20

13 Jan '20

Colleagues, The 33rd DNS-OARC Workshop will take place at the Marriott Rive Gauche Hotel & Conference Center in Paris, France on May 9th and 10th 2020. It is co-located with and will take place right after the ICANN GDD (May 3rd to 6th), Registrations Operations Workshop (May 6th) and ICANN DNS Symposium (May 7th and 8th). The Workshop's Program Committee is requesting proposals for presentations. All DNS-related subjects are welcome. A time slot will also be available for lightning talks (5-10 minutes each) on day two of the workshop, for which submissions will be accepted just before the start of the workshop and until the start of the morning break on day two. Poster submissions are also welcome. There will be an OARC Business session during the workshop, which will be for OARC Members only. If you are an OARC member and have a sensitive topic that you wish to present during that session those can be accommodated. Workshop Milestones: 10 Jan 2020 - Submissions open via Indico 05 Mar 2020 - Deadline for submission (midnight CEST) 19 Mar 2020 - Initial Contribution list published 02 Apr 2020 - Full agenda published 02 May 2020 - Deadline for slideset submission 09 May 2020 - Workshop begins Details for presentation submission are published here: <https://indico.dns-oarc.net/event/34/call-for-abstracts/> The workshop presentations will be organized by common themes, depending on the topics and the timing of each presentation. There are 30-minute and 15-minute slots, let us know your preference in your submission. To allow the Programme Committee to make objective assessments of submissions, so as to ensure the quality of the workshop, submissions SHOULD include slides. Draft slides are acceptable on submission. If you have questions or concerns you can contact the Programme Committee: https://www.dns-oarc.net/oarc/programme via <submissions(a)dns-oarc.net> <your name here>, for the DNS-OARC Programme Committee OARC depends on sponsorship to fund its workshops and associated social events. Please contact <sponsor(a)dns-oarc.net> if your organization is interested in becoming a sponsor. (Please note that OARC is run on a non-profit basis, and is not in a position to reimburse expenses or time for speakers at its meetings.) Kind regards, Dave, for the DNS OARC Programme Committee

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Resolve DNS Queries Based on Source IPs in BIND (NEED ADVISE)
by Md. abdullah Al naser 19 Nov '19

19 Nov '19

Hi everyone, I hope you all are fine. I am new in the mailing list and looking for an advise. If this mailing-list is not suitable for my below query then please pardon me. I am stuck in a situation and looking for a solution. My scenario is like below. I want to block some websites for my all users. For example:www.abc.comwww.xyz.cometc I did it using Response Policy Zone (RPZ) in BIND. response-policy {zone "rpz";};rrset-order { order cyclic; }; zone "rpz" { type master; allow-query { any; }; file "/etc/bind/rpz.db"; }; In my RPZ zone file I created CNAME entries for above mentioned FQDNs which have been pointed to discard.websites.com www.abc.com IN CNAME discard.websites.com.;www.xyz.com IN CNAME discard.websites.com.; And later on, in websites.com zone file (which is another fake zone) I created an A record for discard.websites.com which has been pointed to 192.168.127.127 (a fake IP). discard IN A 192.168.127.127; In this way all the dns requests from my all users for above mentioned sites are resolved to 192.168.127.127 and the real websites are unreachable. (N.B. I am not worry about the situation when users change their DNS IP to any open resolver and can access the websites.) Everything was going fine. By this time another requirement came into the picture. Now I need to block the mentioned websites for some specific users (based on source IP). So in my RPZ configuration I specified the users source IP block like below. zone "rpz" { type master; allow-query { 192.168.10.0/24; }; file "/etc/bind/rpz.db"; }; At this point the dns queries from the specified block 192.168.10.0/24 are resolved to my fake ip and all other requests from rest of IP blocks are dropped (as expected as per configuration). But I want to do like this, the dns queries from 192.168.10.0/24 blocks will be matched with RPZ zone and other requests from rest of IPs will bypass the RPZ configuration and will match my general "allow-query {any;}" statement mentioned in named.conf file. Will the logic work as I stated above?? Any comments from the experts will be great for me. (N.B. I came to know that, resolving different IP based on different source can be possible in KNOT DNS, but I would be happy to do it in BIND (if possible). Thanks & Regards, Md. Abdullah Al NaserDhaka, Bangladesh

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New on RIPE Labs: Analysing the Costs (and Benefits) of DNS, DoT, and DoH for the Modern Web
by Mirjam Kuehne 28 Oct '19

28 Oct '19

Dear colleagues, For those of you who missed Austin Hounsel's presentation at RIPE 79, here is his article on RIPE Labs: Analysing the Costs (and Benefits) of DNS, DoT, and DoH for the Modern Web https://labs.ripe.net/Members/austin_hounsel/analysing-the-costs-and-benefi… Kind regards, Mirjam Kühne RIPE NCC

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Draft minutes from the DNS working group at RIPE 78
by Shane Kerr 18 Oct '19

18 Oct '19

DNS Colleagues, Draft minutes from the DNS working group at RIPE 78 are available here: https://www.ripe.net/participate/ripe/wg/dns/minutes/dns-working-group-minu… Please send any corrections to the DNS working group chairs at <dns-wg-chairs(a)ripe.net>. Cheers, -- Dave, João, and Shane RIPE DNS Working Group Chairs

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FOSDEM 2020 DNS Developer Room Call for Participation
by Pieter Lexis 16 Oct '19

16 Oct '19

Hello DNS WG! tl;dr Please consider submitting a presentation for the DNS devroom at FOSDEM 2020. More details: Every year, developers from all over Europe (and some from farther away) meet in Brussels to discuss Open Source software and many other topics. After a successful and packed DNS devroom (track) at FOSDEM 2018 and 2019, we are happy to announce a half-day DNS devroom at FOSDEM 2020. As with the last years, we hope to host talks anywhere from hardcore protocol stuff, to practical sessions for programmers that are not directly involved with DNS but may have to deal with DNS in their day to day coding or system administrators responsible for DNS infrastructure. We have been allotted a room on Saturday 1 February 2020. We expect to schedule 30 minutes per talk, including questions, but if you need more or less time, we can discuss this. If you have something you’d like to share with your fellow developers, please head to pentabarf at https://penta.fosdem.org/submission/FOSDEM20. Examples of topics are measuring, monitoring, DNS libraries, anecdotes on how you’ve (ab)used the DNS, and group discussions of upcoming technologies. Here’s the 2019 schedule, for your inspiration: https://archive.fosdem.org/2019/schedule/track/dns/ . The deadline for submission is December 1st 2019. If you have a FOSDEM pentabarf account from a previous year, please use that account. Reach out to dns-devroom-manager(a)fosdem.org if you run into any trouble. See you there! Cheers, The FOSDEM 2020 DNS Devroom organizers P.S. Apologies to those receiving multiple copies of these emails. -- Pieter Lexis PowerDNS.COM BV -- https://www.powerdns.com

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Call for Presentations: 32nd DNS-OARC Workshop, San Francisco, CA, Feb 08 2020
by Dave Knight 12 Oct '19

12 Oct '19

Colleagues, The 32nd DNS-OARC Workshop will take place at the Hyatt Regency San Francisco in San Francisco, California, USA on February 8th 2020. It is co-located with and will take place right before NANOG 78 (Feb 10th to Feb 12th 2020). The Workshop's Program Committee is now requesting proposals for presentations. All DNS-related subjects are welcome. Workshop Milestones: • 28 Sep 2019 - Submissions open via Indico • 07 Dec 2019 - Deadline for submission (23:59 PT) • 05 Sep 2019 - Initial Contribution list published • 03 Jan 2020 - Full agenda published • 24 Jan 2020 - Deadline for slideset submission • 08 Feb 2020 - Workshop Details for presentation submission are published here: <https://indico.dns-oarc.net/event/33/call-for-abstracts/> The workshop presentations will be organized by common themes, depending on the topics and the timing of each presentation. There are 30-minute and 15-minute slots, let us know your preference in your submission. To allow the Programme Committee to make objective assessments of submissions, so as to ensure the quality of the workshop, submissions SHOULD include slides. Draft slides are acceptable on submission. If you have questions or concerns you can contact the Programme Committee via submissions(a)dns-oarc.net OARC depends on sponsorship to fund its workshops and associated social events. Please contact sponsor(a)dns-oarc.net if your organization is interested in becoming a sponsor. OARC is run on a non-profit basis, and is not in a position to reimburse expenses or time for speakers at its meetings. Dave, for the DNS-OARC Programme Committee

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RIPE 79 DNS working group agenda, v3
by Shane Kerr 06 Oct '19

06 Oct '19

Colleagues, Here's an updated updated agenda for DNS working group session at RIPE 79 in Rotterdam. We're meeting on Wednesday 16 October from 09:00 to 10:30. 1. Administrivia 5 minutes 2. Benchmarking and Optimizing DNS resolvers on the ISP level by Petr Špaček 20 minutes 3. Challenges and Successes of DNSSEC Signing an F5 BigIP DNS Hosted Zone by Neda Kianpour and Tyler Shaw 10 minutes 4. Analyzing the Costs (and Benefits) of DNS, DoT, and DoH for the Modern Web by Austin H. Hounsel 20 minutes 5. RIPE NCC DNS Report by Florian Obser 10 minutes 6. The Resolvers We Use by Geoff Huston 15 minutes 7. XFR-over-TLS - Making Zone Transfers Private by Allison Mankin 10 minutes X. AOB - EDDI (https://www.encrypted-dns.org) (Jim Reid) See you in 10 days, -- The RIPE DNS Working Group Chairs Dave, João, and Shane

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