- ripe-atlas - mailman.ripe.net

Request RIPE Atlas Credit for Research
by 卫蕴泽 28 Apr '23

28 Apr '23

Dear all, Greetings! I'm a senior student at Tsinghua University, China. Recently I'm working on my graduation project, which is a IP infrastructure mapping research that requires large-scale network measurement via RIPE Atlas to verify my method. However, a simple traceroute with 6 probes need 10K+ credits. As a new user I don't have any credit to proceed, and I've no time to earn them by myself. So I'm here to ask for help. Is it possible for anyone generous enough to offer me some RIPE Atlas credits (like, 10M)? My account at RIPE NCC is fenglan.chn(a)gmail.com, my education email is weiyz19(a)mails.tsinghua.edu.cn and my student ID is 2019011285. Many thanks for your help! Sincerely, Yunze Wei

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a link for comparing DNS resolvers
by Michael Rabinovich 04 Apr '23

04 Apr '23

Folks, FYI, Nick Kernan, my Masters student, has deployed a web portal that facilitates the comparison between various DNS resolvers, including ISP-provided and some influential publicly available resolvers (Google’s public DNS, OpenDNS, Quad9, and Cloudflare). The comparison is based on two factors: the latency of DNS resolutions and the latency of TCP handshake with the CDN edge server selected through a given resolver. The results are based on recurrent monthly measurements from RIPE Atlas probes that have both IPv4 and v6 connectivity, have an ISP-provided resolver available for comparison, and which meet certain requirements regarding probe versions and reliability. You can specify the desired month of measurement, a region of interest, and the CDNs to analyze. You can access Nick’s portal through https://dns-web-portal.netlify.app/ <https://dns-web-portal.netlify.app/> The details of the methodology are in Nick’s thesis, which awaits some copyright permissions before being made publicly available. In the meantime, Nick (cc’ed) and I would be happy to answer any questions. Regards, —Misha Rabinovich

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RIPE Atlas Quarterly Planning Q2 2023
by Robert Kisteleki 30 Mar '23

30 Mar '23

Dear colleagues, We’ve now published our quarterly planning for RIPE Atlas. These are available at: https://www.ripe.net/support/documentation/quarterly-planning/ripe-atlas This quarter, we'll continue the discussion on five proposals for changing RIPE Atlas behaviour and work on restructuring and renewing pages of the user interface. If you have any input on our plans or want to let us know what you would like to see us work on, please let us know. Kind regards, Robert Kisteleki RIPE NCC

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Planned Maintenance: RIPE Atlas streaming API, 28-03-2023, 9.00am - 10.00am UTC
by Marco Giuliani 27 Mar '23

27 Mar '23

Hello, We will carry out planned maintenance on the RIPE Atlas streaming API. During this time, existing HTTP sessions will be briefly interrupted. Start: March, 28th, 2023 - 9.00am UTC End: March, 28th, 2023 - 10.00am UTC Kind regards, Marco Giuliani RIPE NCC

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Join the DNS Hackathon on 20 and 21 May in Rotterdam (weekend before RIPE 86)
by Vesna Manojlovic 21 Mar '23

21 Mar '23

Dear colleagues, I am pleased to invite you to participate in the DNS hackathon that will take place the weekend before RIPE 86 at Ahoy in Rotterdam, on Saturday 20 May and Sunday 21 May 2023. The hackathon is organised by DNS-OARC, Netnod and the RIPE NCC and offers projects based on three challenges: DNS &... Sustainability Security (and privacy) Sovereignty You can also bring your own idea or project. To participate, apply here: https://www.ripe.net/participate/forms/apply/dns-hackathon-2023/ (first deadline is on Thursday, 23 March 2023) Read more at: https://www.netnod.se/join-the-dns-hackathon-2023 Feel free to share this invitation with your communities. Regards, Vesna Manojlovic -- Senior Community Builder, RIPE NCC https://labs.ripe.net/author/becha/

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HTTP measurement proposals [CDN-HTTP] [GENERIC-HTTP] [PEERING-HTTP]
by Ethan Katz-Bassett 06 Mar '23

06 Mar '23

Hi Robert, all: I was considering emailing about the possibility of HTTP measurements to our PEERING <https://peering.ee.columbia.edu/> testbed when I stumbled on the five proposals that Robert posted in December. I want to express my strong support for the two HTTP proposals. Hourly [CDN-HTTP] would be great (eventually with HTTPS support). ([STARTTLS] also sounds good, but I haven't thought deeply about it, and [ONLY-PUBLIC] sounds good unless it costs RIPE Atlas support / probe hosts) I was wondering about the feasibility of allowing HTTP measurements towards PEERING experiments (meaning, towards our address space announced from an experiment via our routers). Is that something that you might be open to supporting? This came to mind because we are in the process of onboarding PEERING to some bring-your-own-prefix services offered by CDNs and cloud providers, and so an increasing number of PEERING experiments are about content delivery/cloud hosting, and it would be great if RIPE Atlas could act as measurement clients to provide widespread vantage points. One hands-off option that comes to mind is to set them up similar to the proposal for CDN-HTTP, where probes will regularly fetch an object at a fixed URL, say http://ripeatlas.ee.columbia.edu/testobject. Normally, that could resolve to our project webserver, which is hosted in AWS. When an experiment needs this HTTP capability (all experiments undergo review by at least 2 people for safety, and we enable only the capabilities they request and need, following the principle of least privilege), we could instead redirect it to a PEERING address allocated to the project that would host the same test object but that would be announced from cloud/CDN/PEERING sites however the experiment had configured. Alternatively, it could be a measurement available to approved accounts, and we could pass on which experiments are approved, or perhaps available to all accounts. We have fixed address space, if you have a way to whitelist. We maintain our list of prefixes as RS-PEERING-TESTBED on RIPE's IRR. I believe Johan recently contacted Kevin Vermeulen about talking to us about RIPE Atlas in the context of another one of our projects, so possibly we can have a discussion covering both topics. Thanks for all your work providing the platform -- it's great! Ethan -- http://www.columbia.edu/~ebk2141/

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Errors on Measurement web interface
by ripe＠brite.cz 01 Mar '23

01 Mar '23

Hi team, I see issues with Latencymon, such as https://atlas.ripe.net/measurements/48750273/#latencymon Upon opening it displays message "Server is responding slowly", after a while it displays the default view. But when I expand the time range a bit, or make any change to the view, it will show nothing and after a while displays message "It is not possible to download data from the API" Tried Firefox and Chrome, same result. The same result when I open only the frame, such as https://atlas.ripe.net/frames/measurements/48750273#latencymon

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Re: [atlas] Measurement question
by Michel Stam 20 Feb '23

20 Feb '23

Hello Roberto, I’ve done the exact same measurement too, using the 3 types of traceroute available (ICMP, UDP and TCP). UDP: (https://atlas.ripe.net/measurements/49826077/#general) TCP: (https://atlas.ripe.net/measurements/49826078/#general) ICMP: (https://atlas.ripe.net/measurements/49826076/#general) The way the traceroute works in Atlas is that if 5 hops have been received without response, the trace skips over to TTL 255 and ends the traceroute. This is what you see with TCP and ICMP. The traceroute stops for lack of response. To prove that, I’ve run the trace again, skipping hops 1-7, for both ICMP and TCP: https://atlas.ripe.net/measurements/49826868/#general https://atlas.ripe.net/measurements/49826959/#general Now for the interesting bits: 100.64.0.0/10 is CGN (Carrier Grade NAT), RFC 6598. Looking at the traceroute differently: Hop 1 (AS16509, Amazon EU West, Amazon-02) Hop 2-7 CGN Hop 8-9 (AS unknown, but between UK and US, IPROU3-ARIN, so Amazon IP routing 3) Hop 10 (AS unknown, but between UK and US, IPROU3-ARIN/ARMP-ARIN, Amazon IP routing) Hop 11-15 CGN Hop 16 (AS unknown, presumably US, IPROU3-ARIN/ARMP-ARIN, I presume Amazon IP routing still) Hop 17-19 CGN Hop 20 (AS13335, Cloudflare US) So it seems like every cloud zone interconnect (amazon Europe west, US, then Cloudflare) transitted goes through a CGN setup. Not sure but I can understand if this confuses some types of traffic. I don’t think there’s anything wrong with your setup, but the results are interesting. I’ve copied a couple of our researchers onto the mail as they may be interested in this as well. Regards, Michel > On 8 Feb 2023, at 11:33, roberto.lucignani(a)caleidos.it wrote: > > Hi Michael, > for example, one measure ID is this one: 49813750 > The result says there are 7 HOPS. > The result of the traceroute made directly on the host is the following one > traceroute to www.madghigno.tech (172.67.221.209), 30 hops max, 60 byte packets > 1 52.56.0.19 24.303 ms 52.56.0.31 9.067 ms 52.56.0.17 29.663 ms > 2 * 100.65.18.192 7.843 ms 100.65.19.176 6.252 ms > 3 100.66.8.254 1.563 ms 100.66.8.146 0.697 ms 100.66.8.168 1.449 ms > 4 100.66.10.138 8.469 ms 100.66.10.14 5.713 ms 100.66.10.6 8.127 ms > 5 100.66.7.77 1.653 ms 100.66.6.173 2.658 ms * > 6 100.66.4.75 2.726 ms 100.66.4.87 2.327 ms 100.66.4.89 1.550 ms > 7 100.65.10.65 0.533 ms 100.65.11.1 0.857 ms 100.65.10.161 8.616 ms > 8 15.230.158.29 2.062 ms 15.230.158.171 5.998 ms 15.230.158.27 1.617 ms > 9 15.230.158.164 1.315 ms 52.94.33.120 2.089 ms 15.230.158.40 1.484 ms > 10 54.239.101.83 1.440 ms 150.222.65.23 1.358 ms 54.239.101.87 1.897 ms > 11 100.91.211.7 1.368 ms 100.91.13.66 1.956 ms 100.91.13.100 5.077 ms > 12 100.91.210.16 1.837 ms 100.100.6.119 1.848 ms 52.93.134.81 2.178 ms > 13 100.100.73.70 2.434 ms 100.91.203.106 4.546 ms 100.100.85.70 1.139 ms > 14 100.91.207.15 1.289 ms * 100.100.72.67 1.767 ms > 15 100.100.2.76 3.616 ms 100.91.201.140 1.955 ms 100.91.205.18 1.744 ms > 16 99.83.89.19 6.820 ms 100.91.201.1 2.454 ms 100.91.201.97 2.415 ms > 17 100.91.211.89 17.823 ms 172.71.176.2 3.200 ms 172.70.160.2 4.450 ms > 18 100.100.6.77 1.805 ms 100.100.6.3 1.943 ms 100.100.6.111 2.005 ms > 19 100.100.80.70 1.980 ms 100.100.76.134 2.679 ms 100.100.69.134 2.081 ms > 20 172.67.221.209 2.799 ms 100.100.89.209 7.318 ms 100.100.89.17 6.869 ms > Since the website is served by cloudflare the route may vary between requests but the are always around 18/20 HOPS > I don’t understand if I0m missing something here. Let me know if you need further details > Regards, > Roberto > From: Michel Stam <mstam(a)ripe.net> > Date: Wednesday, 8 February 2023 at 10:13 > To: roberto.lucignani(a)caleidos.it <roberto.lucignani(a)caleidos.it> > Subject: Re: [atlas] Measurement question > Hello Roberto, > Would you be able to share screenshots/measurement ids so we can have a look? > Regards, > Michel > > > On 8 Feb 2023, at 09:04, roberto.lucignani(a)caleidos.it wrote: > I’m doing some measurement from one of my software probes, the measure is a traceroute to a destination. > The results I get are completely different from what I see doing the same traceroute directly on host where the probe is installed. I configured the measure to sue the DNS resolution on the probe.. > From the Atlas portal I get a traceroute with 7 hops, doing it directly on the host returns 28 hops, for the same destination. > Why this difference ? > Regards, > Roberto > -- > Mail sent with Outlook for Mac > This message contains confidential information and is intended only for the individual named. If you are not the named addressee, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this message by mistake and delete this message from your system. E-mail transmission cannot be guaranteed to be secure or error-free, because information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message that arise as a result of e-mail transmission. > -- > ripe-atlas mailing list > ripe-atlas(a)ripe.net > https://lists.ripe.net/mailman/listinfo/ripe-atlas

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Offering a v1 probe for adoption in RU
by Roman Mamedov 20 Feb '23

20 Feb '23

Hello, I am offering my probe to someone else within Russia for "adoption" (ownership transfer). Despite being a v1, it still runs well with no downtime. Contact me on Telegram via @romanrm to discuss (in Russian or English), or via E-Mail if you don't have an account. Thanks -- With respect, Roman

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Atlas V5 - Rack-Mounting Solution
by Johannes Schiemer 19 Feb '23

19 Feb '23

Dear all, As I have just received my Atlas V5 Probe and wanted to mount it in my Rack, I've decided to 3d-Print a holder for the probe. I've also decided to share it with all of you in the hopes that some of you might find it useful. This is the link to thingiverse: https://www.thingiverse.com/thing:5864347 Thanks! Greetings, Johannes

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