- mat-wg - mailman.ripe.net

Call for Presentations at RIPE 74 in Budapest
by ckaufman 16 Mar '17

16 Mar '17

Dear MAT WG, We are working on putting together the agenda for the MAT working group meeting on Wednesday 10th May at RIPE 74 in Budapest and there are still slots left.:-) So if you have something you would like to present, please let us know till the 31st March. Thanks a lot, Nina and CK MAT WG Chairs

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RIPE Atlas Infrastructure Maintenance (14 March)
by Paul de Weerd 13 Mar '17

13 Mar '17

Dear all, We'll carry out maintenance work on the core RIPE Atlas and RIPEstat infrastructure tomorrow (14 March 2017), approximately between 09:00 and 11:00 UTC+1. As a result, we will switch over to the reduced data set, limiting the amount of history available from the service. This affects RIPE Atlas, RIPEstat, RIS and DNSMON. We apologise for the inconvenience. Best regards, Paul de Weerd Senior Systems Engineer RIPE NCC

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New on RIPE Labs: New RIPE Atlas Root Zone DNS Measurements
by Mirjam Kuehne 10 Mar '17

10 Mar '17

Dear colleagues, Two new DNS measurements, both designed to assess the impact of issues with one or more root name servers, have been added to every RIPE Atlas probe. Please find more details on RIPE Labs: https://labs.ripe.net/Members/chris_amin/new-ripe-atlas-root-zone-dns-measu… Kind regards, Mirjam Kuhne RIPE NCC

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Atlas: DNS TCP Errors
by John 07 Mar '17

07 Mar '17

Hello Mat-wg, feature request, when preforming DNS queries over TCP would it be possible for the probe to differentiate between a timeout and a TCP Reset. Currently the result just records the following when it gets a reset[1]. `error.timeout: 5000` A similar feature to record ICMP prohibited for udp queries would also be useful but likely much harder. Thanks John [1]https://atlas.ripe.net/api/v2/measurements/7859749/results?start=14888448…

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250 RIPE Atlas Anchors now online!
by Michela Galante 23 Feb '17

23 Feb '17

Dear colleagues, Thanks to nineteen new RIPE Atlas Anchors being activated over the last three months, we have now reached an important milestone: 250 anchors online! Congratulations to anchor 250 hosted by Mogul Service and Support LLC in Ulaanbaatar, Mongolia and to APNIC for sponsoring it! These are the other anchors that have become active since our last announcement in November: - nl-ede-as12859, hosted by BIT in Ede, Netherlands - de-tua-as21413, hosted by envia TEL GmbH in Taucha, Germany - de-ham-as12731, hosted by IPHH Internet Port Hamburg GmbH in Hamburg, Germany (replaces older hardware) - py-slo-as27733, hosted by IXpy (sponsored by LACNIC) in San Lorenzo, Paraguay - uk-did-as786, hosted by Jisc in Didcot, United Kingdom - Two anchors hosted by Rabobank: nl-bst-as8211 in Best and nl-bxt-as8211 in Boxtel, Netherlands - nz-wlg-as9834, hosted by Trade Me in Wellington, New Zealand - lt-vno-as21412, hosted by CGATES in Vilnius, Lithuania - de-ber-as25291, hosted by SysEleven GmbH in Berlin, Germany (replaces older hardware) - us-bcb-as1312, hosted by Virginia Tech Transportation Institute in Blacksburg, United States - Two anchors hosted by Elisa Obj: fi-hel-as6667 in Helsinki and fi-tmp-as719 in Tampere, Finland - lu-ezt-as2602, hosted by Fondation RESTENA in Esch-sur-Alzette, Luxembourg (replaces older hardware) - de-kae-as8560, hosted by 1&1 Internet SE in Karlsruhe, Germany - fr-par-as5377, hosted by Marlink Enterprise AS in Paris, France - fr-tls-as39405, hosted by FULLSAVE in Toulouse, France - nl-ams-as286, hosted by KPN Eurorings B.V. in Amsterdam, Netherlands - mm-rgn-as132167, hosted by Ooredoo Myanmar (sponsored by APNIC) in Yangon, Myanmar (IPv4-only anchor) - fr-ilm-as57119, hosted by NAITWAYS in Issy, France - us-lxa-as8560, hosted by 1&1 Internet Inc. in Lenexa, United States You can find the full list of anchors, a map of their locations, a list of the hosting organisations and more information about RIPE Atlas Anchors online: https://atlas.ripe.net/anchors/list/ Interested in hosting a RIPE Atlas Anchor? Learn more: https://atlas.ripe.net/get-involved/become-an-anchor-host/ There are several organisations that want to host a RIPE Atlas Anchor but don’t have the necessary funding. Find out more about the RIPE NCC campaign to sponsor 15 RIPE Atlas Anchors https://labs.ripe.net/Members/alun_davies/campaign-to-sponsor-15-ripe-atlas… We would also like to remind you about our ongoing cooperation with APNIC, LACNIC, AFRINIC and ISOC: thanks to their help we are getting more geographical diversity to the measurement data. If your organisation is in their region contact us at <atlas(a)ripe.net> and we will get you in touch with them! And don’t forget to let us know by contacting us at <atlas(a)ripe.net> if you’re doing something interesting with RIPE Atlas data - we always want to hear about your use cases, research and experiences! Regards, Michela Galante RIPE NCC

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Querying popular domains with RIPE Atlas
by Chris Amin 21 Feb '17

21 Feb '17

Dear colleagues, As you are probably aware, DNSMON* and RIPE Atlas built-in** measurements are often used when analysing outages and other issues with important DNS services, particularly the root zone servers. These measurements do not provide a direct indication of the impact on actual end-user experience because they involve directly querying authoritative name servers, thereby ignoring the effects of having multiple authoritative name servers as well as caching local recursive resolvers. To improve upon our DNS monitoring, we will initiate two built-in DNS measurements from all RIPE Atlas probes that use the probes' default resolvers instead of authoritative name servers. The first measurement will query for random top-level domains with the intention of avoiding caches and therefore hitting at least one root name server. The second measurement will query for popular domain names, with the intention of hitting caches where appropriate and getting an idea of the true impact on users. As a starting point for the second measurement, we will use a recent snapshot of the global top 50 visited sites according to the Alexa top sites list***, which combines unique visitors and individual page views in its calculations. Probes will cycle through these domains, querying for a different A record every 10 minutes. Since DNS queries containing these domains will be made from every connected RIPE Atlas probe, we would like to ask for feedback on whether querying the DNS for any of these domains could pose legal or political problems for probe hosts in certain parts of the world. I have also included the next 25 most popular domains below, which will be used to fill any gaps caused by removing items from the main list. Kind regards, Chris Amin RIPE NCC * https://atlas.ripe.net/dnsmon/ ** https://atlas.ripe.net/docs/built-in/ *** https://en.wikipedia.org/w/index.php?title=List_of_most_popular_websites&ol… Provisional 50 domains to query =============================== google.com. youtube.com. facebook.com. baidu.com. wikipedia.org. yahoo.com. google.co.in. amazon.com. qq.com. google.co.jp. live.com. taobao.com. vk.com. twitter.com. instagram.com. hao123.com. sohu.com. sina.com.cn. reddit.com. google.de. linkedin.com. tmall.com. yahoo.co.jp. weibo.com. google.fr. 360.cn. google.co.uk. google.ru. google.com.br. yandex.ru. ebay.com. bing.com. msn.com. google.it. soso.com. t.co. wordpress.com. google.es. microsoft.com. tumblr.com. aliexpress.com. blogspot.com. netflix.com. amazon.co.jp. ok.ru. google.com.hk. stackoverflow.com. google.ca. google.com.mx. imgur.com. Next 25 most popular domains, excluding pornography =================================================== apple.com. Naver.com. mail.ru. imdb.com. popads.net. onclickads.net. office.com. google.co.kr. github.com. pinterest.com. paypal.com. tianya.cn. google.com.tw. google.com.tr. google.com.au. diply.com. amazon.de. google.co.id. microsoftonline.com. onclckds.com. twitch.tv. adobe.com. amazon.co.uk. wikia.com. cnzz.com.

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Join RIPE NCC DNS Measurements hackathon
by Vesna Manojlovic 16 Feb '17

16 Feb '17

Dear colleagues, The fifth RIPE NCC hackathon will take place on Thursday and Friday, 20-21 April 2017, in Amsterdam. Apply online: https://atlas.ripe.net/hackathon/dns-measurements/#!application-form *The application deadline is 26 February 2017* Find out more in this RIPE Labs article: https://labs.ripe.net/Members/alun_davies/dns-measurements-hackathon-2017 Regards, Vesna Manojlovic RIPE NCC Community Builder

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New on RIPE Labs: Update on RIPE Atlas Probe Lifetimes
by Mirjam Kuehne 15 Feb '17

15 Feb '17

Dear colleagues, Please find an update on the status of RIPE Atlas probe connections on RIPE Labs: https://labs.ripe.net/Members/wilhelm/update-on-atlas-probe-lifetimes Kind regards, Mirjam Kuhne RIPE NCC

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New on RIPE Labs: Campaign to Sponsor 15 RIPE Atlas Anchors
by Mirjam Kuehne 31 Jan '17

31 Jan '17

Dear colleagues, The RIPE NCC is pleased to announce that we will be sponsoring 15 new RIPE Atlas anchors in 2017. This article provides details about the campaign and introduces the criteria that will be used to decide which applicants will receive sponsorship: https://labs.ripe.net/Members/alun_davies/campaign-to-sponsor-15-ripe-atlas… Kind regards, Mirjam Kuhne RIPE NCC

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New on RIPE Labs: Using RIPE Atlas to Validate International Routing Detours
by Mirjam Kuehne 30 Jan '17

30 Jan '17

Dear colleagues, Please read on RIPE Labs an article by Anant Shah in which he describes how he is using RIPE Atlas to validate international routing detours: https://labs.ripe.net/Members/anant_shah/using-ripe-atlas-to-validate-inter… Kind regards, Mirjam Kuehne RIPE NCC

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New on RIPE Labs: Reviewing the 2016 Leap Second
by Mirjam Kuehne 17 Jan '17

17 Jan '17

Dear colleagues, Last month we covered the 2015 leap second ahead of the insertion of a leap second at the very end of 2016. As stated previously, leap seconds can trigger poorly-tested code paths; leap second handling always unearths bugs and issues. This one was no exception! Please find more details on RIPE Labs: https://labs.ripe.net/Members/stephen_strowes/reviewing-the-2016-leap-second Kind regards, Mirjam Kuehne RIPE NCC

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RIPE Atlas APIs
by Robert Kisteleki 03 Jan '17

03 Jan '17

Dear colleagues, We've just published a RIPE Labs article about a reminder for the RIPE Atlas API version changes. You can read it here: https://labs.ripe.net/Members/kistel/ripe-atlas-api-changes Regards, Robert Kisteleki RIPE NCC

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New on RIPE Labs: Four Years of RIPE Atlas Anchors
by Mirjam Kuehne 22 Dec '16

22 Dec '16

Dear colleagues, Four years have passed since the RIPE NCC announced its plans to put RIPE Atlas anchors into production. Since the first anchors went online in 2013, we’ve been working hard to both maintain and expand the network. As a result, we currently have 238 anchors deployed across 66 countries! Please find more on RIPE Labs: https://labs.ripe.net/Members/alun_davies/four-years-of-ripe-atlas-anchors Kind regards, Mirjam Kuehne RIPE NCC

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New on RIPE Labs: Preparing for the 2016 Leap Second
by Mirjam Kuehne 15 Dec '16

15 Dec '16

Dear colleagues, On 31 December this year, we're scheduled for another leap second. There are many stories about what leap seconds can do to infrastructure and applications, and rituals are built up around them. Please read more on RIPE Labs in an article contributed by our new colleague Stephen Strowes: Preparing for the 2016 Leap Second https://labs.ripe.net/Members/stephen_strowes/preparing-for-the-2016-leap-s… Kind regards, Mirjam Kuehne RIPE NCC

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RIPE Atlas Success Story: Zoom-in on Germany
by Vesna Manojlovic 12 Dec '16

12 Dec '16

Dear all, we wrote an article as an example of how cross-pollination between communities can create success. An overlap between IETF participants, RIPE Atlas users and listeners of a popular German podcast has led to growth in the deployment of RIPE Atlas probes. We are still interested in expanding this platform in areas and networks that need more coverage. For pictures & links, go here: https://labs.ripe.net/Members/becha/ripe-atlas-success-story-zoom-in-on-ger… Text is bellow. Regards, Vesna In July 2016, during the IETF meeting in Berlin, the popular "RFC podcast" had a special episode aired an interview with Daniel Karrenberg talking about the RIPE NCC and RIPE Atlas. Thanks to the podcast listeners, and with the help of promotion on Twitter, the episode prompted many, many, MANY applications for new RIPE Atlas probe hosts. Because of both summer vacations and a temporary shortage of probes, there was a delay in shipping - but when the new batch of probes arrived at our office, we started shipping them to applicants, most of whom were from Germany. Currently, with regard to the number of active probes, Germany is leading with more than 1,000. This is more than the USA, which was in the lead for the previous few years. If you want to zoom in to this success-story, you can take a look at this RIPEstat widget. There you can see that, between 22 September and 7 October, the number of activated probes jumped from 999 to 1,157. Thank you to all the hosts, in Germany and elsewhere, who are helping to build RIPE Atlas - the largest active measurements platform! Actions Although we are happy that there is so much enthusiasm in Germany, we are still interested in increasing diversity of coverage. To this end, we're looking to reach out to: - Regions, countries and areas within countries with fewer probes - Networks (ASNs) with fewer probes - Deploying RIPE Atlas anchors instead If you would like to apply for your own RIPE Atlas probe, there is a special link just for the readers of this RIPE Labs article :) If you already have a probe, and want to get in touch: - Check out the Community pages - Follow us on Twitter - Be active on the mailing list

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New on RIPE Labs: Internet Access Disruption In The Gambia - 2016
by Mirjam Kuehne 02 Dec '16

02 Dec '16

Dear colleagues, We had a look at various RIPE NCC data sets to see what we can learn from yet another country-wide Internet outage in 2016 - this time The Gambia. https://labs.ripe.net/Members/emileaben/internet-access-disruption-in-the-g… Kind regards, Mirjam Kuehne RIPE NCC

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New on RIPE Labs: Reasons Dynamic Addresses Change
by Mirjam Kuehne 29 Nov '16

29 Nov '16

Dear colleagues, Please find this new article on RIPE Labs by Ramakrishna Padmanabhan: Reasons Dynamic Addresses Change Rama looked at why dynamic addresses change and found ISPs that renumber periodically, most commonly every 24 hours or a multiple of 24 hours. He also found that outages influence address changes. RIPE Atlas was used for the measurements. https://labs.ripe.net/Members/ramakrishna_padmanabhan/reasons-dynamic-addre… Kind regards, Mirjam Kuehne RIPE NCC

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Fifteen new RIPE Atlas anchors have joined the community
by Michela Galante 24 Nov '16

24 Nov '16

Dear colleagues, Fifteen new RIPE Atlas anchors have been activated since our last announcement in September, bringing the total number to 231: - us-bos-as26167, hosted by Markley Group in Boston, United States (IPv4-only anchor) - us-pct-as88, hosted by Princeton University in Princeton, United States (IPv4-only anchor) - tz-dar-as327844, hosted by Tanzania ISP Association in Dar es Salaam, Tanzania and ke-nbo-as37578, hosted by TESPOK in Nairobi, Kenya. These are the first two of five anchors that ISOC will sponsor. - dk-aal-as9158 and dk-cph-as9158, hosted by Telenor Denmark A/S in Aalborg and Copenhagen, Denmark - au-syd-as135150, hosted by bet365 in Sydney, Australia - ca-wnp-as16395, hosted by asn16395 in Winnipeg, Canada - us-ljl-as195, hosted by Center for Applied Internet Data Analysis (CAIDA) at the University of California, San Diego in La Jolla, United States - nz-akl-as38064, hosted by NZ Registry Services in Auckland, New Zealand - us-bos-as111, hosted by the Boston University in Boston, United States - kw-kwi-as42961, hosted by Zain Kuwait in Kuwait City, Kuwait - nl-ede-as12859-client, hosted by HCC in Ede, Netherlands - it-rom-as24796, hosted by NaMeX Consortium in Rome, Italy - us-fcn-as32934, hosted by Facebook in Forest City, United States. You can find the full list of anchors, a map of their locations, a list of the hosting organisations and more information about RIPE Atlas anchors online: https://atlas.ripe.net/anchors/list/ Interested in hosting a RIPE Atlas anchor? Learn more: https://atlas.ripe.net/get-involved/become-an-anchor-host/ We are particularly interested in deploying anchors in the Middle East, Western Asia, Latin America and Africa in order to add more geographical diversity to the measurement data. There are several organisations that want to host a RIPE Atlas anchor but don’t have the necessary funding. To learn more about sponsoring an anchor, or for any other questions, please contact us at atlas(a)ripe.net And don’t forget to let us know if you’re doing something interesting with RIPE Atlas data - we always want to hear about your use cases, research and experiences! Regards, Michela Galante RIPE NCC

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New on RIPE Labs: Large BGP Communities - Largely Accepted Now?
by Mirjam Kuehne 11 Nov '16

11 Nov '16

Dear colleagues, Large BGP Communities are an addition to BGP that solves a communication problem between networks that want to use 32-bit AS Numbers. We measured how Large BGP Communities behave "in the wild" and if they create any problems. Please find the results on RIPE Labs: https://labs.ripe.net/Members/emileaben/large-bgp-communities-largely-accep… Kind regards, Mirjam Kuehne RIPE NCC

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Ethical considerations
by Robert Kisteleki 07 Nov '16

07 Nov '16

Dear All, As mentioned in my RIPE Atlas update during the RIPE 73 MAT working group, we'd like to draw RIPE Atlas users’ attention to relevant ethical considerations. We've just published a RIPE Labs article about this: https://labs.ripe.net/Members/kistel/ethics-of-ripe-atlas-measurements/ Regards, Robert Kisteleki RIPE NCC

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New on RIPE Labs: A Practical Comparison Between RIPE Atlas and ProbeAPI
by Mirjam Kuehne 25 Oct '16

25 Oct '16

Dear colleagues, Please find this new article on RIPE Labs contributed by Cristian Varas: A Practical Comparison Between RIPE Atlas and ProbeAPI https://labs.ripe.net/Members/cristian_varas/a-practical-comparison-between… Kind regards, Mirjam Kuehne RIPE NCC

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New on RIPE Labs: A Quick Look at the Attack on Dyn
by Mirjam Kuehne 24 Oct '16

24 Oct '16

Dear colleagues, We used a number of RIPE NCC tools and data sets to take a quick look at the recent DDoS attack on Dyn’s infrastructure. We wanted to see if this could be found in the data produced by the RIPE Atlas community. Please see on RIPE Labs: https://labs.ripe.net/Members/massimo_candela/a-quick-look-at-the-attack-on… Kind regards, Mirjam Kuehne RIPE NCC

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MAT Draft Agenda V2.0 for RIPE73
by Christian Kaufmann 24 Oct '16

24 Oct '16

Hello All, This is the updated draft agenda for the Measurement, Analysis and Tools Working Group session at RIPE73: A. Introduction: Welcome, Scribe, Jabber, Agenda - 5m B. Wireless Performance Measurement and Verification Using the end-user mobile device feedback - Anna Wilson - 20 min C. What’s hiding behind IPv6 extension headers? - Luuk Hendriks - 15 m D. RIPE ATLAS update - Robert Kisteleki - 10 m E. Add system tag for the probes behind "nanny filter" - Remco van Mook - 5 min F. Country Topology map Using Atlas - Sebastian Castro - 15 min G. Speed checker comparison with Atlas - Janusz Jezowicz - 15 min Z. AOB Timings are approximate:-) The session will take place at 15:00 local time on Wednesday 26th October. See you in Madrid! Nina and CK MAT WG Chairs

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New on RIPE Labs: Orange Blacklisting: A Case for Measuring Censorship
by Mirjam Kuehne 19 Oct '16

19 Oct '16

Dear colleagues, Please find a short a article on measuring censorship on RIPE Labs: https://labs.ripe.net/Members/stephane_bortzmeyer/orange-blacklisting-a-cas… Kind regards, Mirjam Kuehne RIPE NCC

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Shall we continue non-public measurements in RIPE Atlas?
by Mirjam Kuehne 18 Oct '16

18 Oct '16

Dear colleagues, "Non-public measurements" is a feature of RIPE Atlas that allows users to use the infrastructure to measure things while not sharing those results with the public. Is that still a useful feature? Should it exist in the future? For more details, see this new post on RIPE Labs: https://labs.ripe.net/Members/kistel/non-public-measurements-in-ripe-atlas Please also take the polls at the end of the article. Kind regards, Mirjam Kuehne RIPE NCC

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