- ripe-atlas - mailman.ripe.net

Effect of "Resolve on Probe"-option
by Tim Wattenberg 04 Dec '17

04 Dec '17

Hi everyone, I think I don’t quite understand the effect of the „Resolve on Probe“ option when creating a measurement. The form says it forces the probe to do DNS resolution, the API reference says that it indicates that a name should be resolved (using DNS) on the probe otherwise it will be resolved on the RIPE Atlas servers. Could someone explain what this means for example if I have a simple measurement for querying the A record of a given domain via the probe’s resolvers? Thanks, Tim

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map distinction between "no data yet" and "timeout"
by Ben Clifford 01 Dec '17

01 Dec '17

I was just trying to get a map view for a nameserver that appeared to not be responding to people in some geographical areas. I fired off a measurement across a load of probes and get a map back. In my particular case, the result I'm looking for is whether a response came back from the target server at all. But the map doesn't distinguish between probes that haven't measured yet, and probes that have attempted a measurement but timed out, as far as I can tell. --

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dig +trace equivalency
by dikshie 29 Nov '17

29 Nov '17

Hi, I use to use +trace option in dig command. Is there any same function equivalency in Atlas's DNS measurement tool? Thank you in advance. -- -dikshie-

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Trying to measure Quad9 latency
by Eduardo Duarte 29 Nov '17

29 Nov '17

Hi all, After the recent launch of the Quad9 service I try to discover if it had a best response time them my actual resolver, that is google public DNS. To do this I launch a comparing measurement using atlas that would run during one day to the same address from the probes in my ISP. The address that I was trying has a very high TTL so I was expecting to always hit the cache of the servers and them get a good comparison base. I know that there are other factors involve in server response time but to my home connection I fill that this where enough. When I got the results from the measurement they were not what I expected.... The measurements to Quad9 had high value of REFUSAL. Does any one as a clue why??? The measurement result is available at https://atlas.ripe.net/measurements/10269508 Best regards, -- Eduardo Duarte Gestão e Desenvolvimento de Projetos l Project Development Management *DNS.PT* Rua Latino Coelho, n.º 13, 5.º piso | 1050-132 Lisboa | Portugal Tel: (+351) 211 308 200 Fax: (+351) 211 312 720 dns.pt <http://www.dns.pt> | dnssec.pt <http://www.dnssec.pt> | 3em1.pt <https://www.3em1.pt> | facebook.com/dns.pt <https://www.facebook.com/dns.pt> | pt.linkedin.com/in/dnspt <http://pt.linkedin.com/in/dnspt> Aviso de Confidencialidade/Disclaimer: Este e-mail foi escrito de acordo com o novo acordo ortográfico. Esta mensagem é exclusivamente destinada ao seu destinatário, podendo conter informação CONFIDENCIAL, cuja divulgação está expressamente vedada nos termos da lei. Caso tenha recepcionado indevidamente esta mensagem, solicitamos-lhe que nos comunique esse mesmo facto por esta via devendo apagar o seu conteúdo de imediato. This message is intended exclusively for its addressee. It may contain CONFIDENTIAL information protected by law. If this message has been received by error, please notify us via e-mail and delete it immediately. [ Antes de imprimir esta mensagem pense no ambiente. Before printing this message, think about environment ]

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New on RIPE Labs: Last sponsored RIPE Atlas anchors for 2017
by Alun Davies 27 Nov '17

27 Nov '17

Dear colleagues, New on RIPE Labs, read all about the last phase of the RIPE NCC’s 2017 campaign to sponsor fifteen RIPE Atlas anchors: https://labs.ripe.net/Members/alun_davies/last-sponsored-ripe-atlas-anchors… Kind regards, Alun Davies RIPE NCC

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New on RIPE Labs: RIPE Atlas on the Go
by Mirjam Kuehne 15 Nov '17

15 Nov '17

Dear colleagues, Ollivier Robert just released a tool that provides access to the RIPE Atlas API in Go. Please find more details on RIPE Labs: https://labs.ripe.net/Members/ollivier_robert/ripe-atlas-on-the-go Kind regards, Mirjam Kühne RIPE NCC

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New vendor for RIPE Atlas v3 anchors
by Alun Davies 15 Nov '17

15 Nov '17

Dear all, Meconet, the latest addition to our list of vendors for RIPE Atlas v3 anchors, is offering the new anchor hardware fully assembled with 3 years warranty. The RIPE Atlas anchor from Meconet comes in a 19” chassis with integrated power supply: https://shop.meconet.de/a/117330?language=en <https://shop.meconet.de/a/117330?language=en> Whilst Meconet is currently the only one offering the device fully assembled, there are other vendors listed on the following page: https://atlas.ripe.net/get-involved/become-an-anchor-host/ <https://atlas.ripe.net/get-involved/become-an-anchor-host/> Updated information on the latest generation of RIPE Atlas anchors can be found in the following RIPE Labs article: https://labs.ripe.net/Members/alun_davies/introducing-ripe-atlas-v3-anchors <https://labs.ripe.net/Members/alun_davies/introducing-ripe-atlas-v3-anchors> Best regards, Alun Davies RIPE NCC

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Running RIPE probe VM
by Evgeniy Sudyr 14 Nov '17

14 Nov '17

Hello All, I'm interesting for running RIPE probe on VM or Docker container. Any chance to get this idea real? -- With regards, Eugene Sudyr

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A Go library to talk to RIPE Atlas
by Stephane Bortzmeyer 14 Nov '17

14 Nov '17

https://blog.keltia.net/2017/11/13/ripe-atlas-is-usable-dot-dot-dot/ [Still a bit rough...]

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Probe disconnected – cold reboot required (ctr-ams08)
by Christian Schrötter 13 Nov '17

13 Nov '17

Hello Atlas-Users! Do you have any problems with your probes today? Mine disconnected two times in the last ~15 hours and never came back online. Internet is stable and SD-card looks ok. I had to force a cold restart to get it back online. Strange thing, it's the first time in two years. Old uptime was 99 days... :-/ -- With kind regards, Christian Schrötter

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New on RIPE Labs: Verfploeter: Broad and Load-aware Anycast Mapping
by Mirjam Kuehne 13 Nov '17

13 Nov '17

Dear colleagues, Here is a summary of a research paper written by Wes Hardaker, Wouter de Vries and Ricardo Schmidt: Verfploeter: Broad and Load-aware Anycast Mapping IP anycast provides DNS operators and CDNs with automatic fail-over and reduced latency by breaking the Internet into catchments, each served by a different anycast site. https://labs.ripe.net/Members/wouter_de_vries/verfploeter-broad-and-load-aw… Kind regards, Mirjam Kühne RIPE NCC

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Recent TLS supported by probes?
by Stephane Bortzmeyer 13 Nov '17

13 Nov '17

I cannot get the certificate for <https://dns-resolver.yeti.eu.org/> (measurement #10174881): "alert" is "{u'description': 40, u'level': 2}". It works with other, more "mainstream", HTTPS sites (see #10174883). I suspect this is because the probes don't handle the recent TLS stuff. Can anyone confirm or infirm?

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Atlas Measurements
by Tom Glass 13 Nov '17

13 Nov '17

Hello all, Hope you are having a great weekend. I just stopped by to ask if you guys would know where/if I can add new probes to an existing measurement. A new probe has appeared in the area we are monitoring and I was hoping there was a way of adding it without recreating the measurement? Cheers, all, Tom

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Odd queries from probe
by Jared Mauch 10 Nov '17

10 Nov '17

While doing some debugging of my home network, I noticed some odd queries from the probe, namely this one: 02:28:36.921622 IP6 fe80::a2f3:c1ff:fec4:479f.51123 > 2001:558:feed::2.53: 23808+ A? 12920.atlas.ripe.net.b61065696c194ac3. (55) Is this some captive portal/wildcarding detection, or perhaps some other software issue? curious, - Jared

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IPv4 leading zeroes and weird interface behaviour
by Max Grobecker 30 Oct '17

30 Oct '17

Hello, is there - by standard - a definition on how to represent an IPv4 address? I have (for example) the IP address "73.0.255.229", which can IMHO also be written as "073.000.255.229" as the leading zeroes are not giving any changes to the binary representation of this address. Am I right on this? But: When I lookup this IP address on https://stat.ripe.net/073.000.255.229 the first octet is internally getting swapped to "59". This can be explained, if you take "073" as an octal value and convert it to a decimal value. It is definitely a octal-to-decimal conversion thing, as for example also the value "010" is getting replaced by "8" and so on. Now I'm puzzled: Of course, writing IPv4 octets with leading zeroes is not very common. But: Is it officially prohibited or discouraged? This weird conversion also happens inside the "geoiplookup" tool by MaxMind and I'm not sure if I'm going to be the moron in this story or if I found the same bug inside multiple softwares at once ;-) Thanks and greetings from Wuppertal Max

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Segmentation fault (core dumped)
by Antonio D 26 Oct '17

26 Oct '17

I upgraded UBUNTU from 17.04 to 17.10 and I discovered that ripe-atlas-tools had disappeared. So I tried reinstalling it with "pop install ripe-atlas-tools", but the process crashed with the following error: Segmentation fault (core dumped) Can you help me solve the problem? Thank you Antonio Sent via RIPE Forum -- https://www.ripe.net/participate/mail/forum

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Why did I get "Over the limit on number of results"?
by Eduardo Duarte 25 Oct '17

25 Oct '17

Hello, I schedule some measurements to run during today but I got an error on some of them. The error is "Over the limit on number of results". I have enough credits to run all the measures so I don't understand this message. Thank you and best regards, -- Eduardo Duarte Gestão e Desenvolvimento de Projetos l Project Development Management *DNS.PT* Rua Latino Coelho, n.º 13, 5.º piso | 1050-132 Lisboa | Portugal Tel: (+351) 211 308 200 Fax: (+351) 211 312 720 dns.pt <http://www.dns.pt> | dnssec.pt <http://www.dnssec.pt> | 3em1.pt <https://www.3em1.pt> | facebook.com/dns.pt <https://www.facebook.com/dns.pt> | pt.linkedin.com/in/dnspt <http://pt.linkedin.com/in/dnspt> Aviso de Confidencialidade/Disclaimer: Este e-mail foi escrito de acordo com o novo acordo ortográfico. Esta mensagem é exclusivamente destinada ao seu destinatário, podendo conter informação CONFIDENCIAL, cuja divulgação está expressamente vedada nos termos da lei. Caso tenha recepcionado indevidamente esta mensagem, solicitamos-lhe que nos comunique esse mesmo facto por esta via devendo apagar o seu conteúdo de imediato. This message is intended exclusively for its addressee. It may contain CONFIDENTIAL information protected by law. If this message has been received by error, please notify us via e-mail and delete it immediately. [ Antes de imprimir esta mensagem pense no ambiente. Before printing this message, think about environment ]

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New on RIPE Labs: RIPE Atlas Probes as IoT Devices
by Mirjam Kuehne 20 Oct '17

20 Oct '17

Dear colleagues, As a follow-up to the presentation Robert Kisteleki gave during the IoT Roundtable Meeting in September [1], we have published a RIPE Labs article describing RIPE Atlas probes as IoT devices and some initial design decisions that we thought were important for such an infrastructure: https://labs.ripe.net/Members/kistel/ripe-atlas-probes-as-iot-devices Kind regards, Mirjam Kuhne RIPE NCC [1] https://www.ripe.net/participate/meetings/roundtable/september-2017/ripe-io…

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status is confusing
by Dave 18 Oct '17

18 Oct '17

Hi, The status page of one of my probes says: I’ve been bitten a few times by misinterpreting this. Could these 2 things be put on separate lines? This does suggest the probe is up but only when you missed the red colour and didn’t get the meaning of the icon. Also, when you read the mail it may be hours later than when it was sent. So keep in mind that a receiver’s probe could be back online in the meantime. Often a mail will be checked on the mobile. The status on a small screen must be clear too. I’ll restart the probe and modem and it will work again but I would have done that on day 1 if the message was more clear. Thanks, Dave

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New on RIPE Labs: Insights from RIPE Atlas Probe Disconnections
by Mirjam Kuehne 17 Oct '17

17 Oct '17

Dear colleagues, There are all kinds of reasons why RIPE Atlas probes might become disconnected. So, even though we'd like all probes to be connected all the time, disconnects can also tell us a useful story. Please find this new article by Emile Aben on RIPE Labs exploring what insights we can gain from RIPE Atlas probe disconnections: https://labs.ripe.net/Members/emileaben/insights-from-ripe-atlas-probe-disc… Kind regards, Mirjam Kuhne RIPE NCC

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What is the meaning of 127.0.0.1 as probe resolver?
by Baptiste Jonglez 16 Oct '17

16 Oct '17

Hi, While looking at the result of built-in DNS measurements that use the probe resolvers, I noticed that a significant fraction of probes have "127.0.0.1" as a resolver. And the results are strange: performance is really bad, for instance measurement 30002 gives a median resolution time of 300 ms for these probes! What could be the meaning of this? It almost looks like a recursive resolver with no cache at all is running on the probes themselves. I was looking at this measurement: https://atlas.ripe.net/measurements/30002/ And here are some example probes that exhibit this "127.0.0.1" symptom: 6001, 6087, 6162, 6235, 6308. Any reasonable explanation is welcome! Thanks, Baptiste

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Problem in status checks?
by Stephane Bortzmeyer 14 Oct '17

14 Oct '17

Error 500 when trying to retrieve status checks: % curl -v 'https://atlas.ripe.net/api/v2/measurements/2060427/status-check?permitted_t…' ... > GET /api/v2/measurements/2060427/status-check?permitted_total_alerts=3 HTTP/1.1 > Host: atlas.ripe.net > User-Agent: curl/7.52.1 > Accept: */* > < HTTP/1.1 500 Internal Server Error < Server: nginx/1.10.2 < Date: Sat, 14 Oct 2017 07:09:10 GMT < Content-Type: text/html; charset=utf-8 < Content-Length: 38403 < Connection: keep-alive < Vary: Accept-Encoding, Cookie < X-Frame-Options: SAMEORIGIN < Strict-Transport-Security: max-age=15768000

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Plan to Implement RIPE Atlas WiFi Measurements
by Robert Kisteleki 09 Oct '17

09 Oct '17

Dear colleagues, We wanted to update the community and let you know that we plan to start work on the proposed experiment with WiFi measurements in mid-2016. As we communicated in a recent RIPE Labs article, we will work with GÉANT as a test partner to learn more about the operational effects of introducing WiFi measurements to the RIPE Atlas system, in addition to the benefits we believe this could provide for the entire RIPE Atlas community. Please see the article for more details if you are interested: https://labs.ripe.net/Members/suzanne_taylor_muzzin/ripe-atlas-wifi-measure… We will continue to update you once we’ve begun work on this plan, and we welcome your comments in the meantime. Regards, Robert Kisteleki RIPE NCC

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Probe disconnects
by RIPE 09 Oct '17

09 Oct '17

Hi, I have a probe ( #22583 ) at home connected via my DSL link, for IPv6 connectivity I use a Hurricane Electric ( tunnelbroker.net ) /48 tunnel. I noticed on the monthly report that my probe is showing lots of short ( 1-2 min) disconnects. But it only seems to happen when the connection address in the probe’s network tab is the IPv6 address. In that case the IPv4 Connection address is empty. If it’s showing the IPv4 the probe stays connected for days ( until the DSL link really disconnects). Is there a way to get the probe to ignore the IPv6 for connection status ? Or to mark it as disconnected when both iPv4 and IPv6 are disconnected ? Best regards, Paul van der Zwan

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Charity IT Pulse :) one more sleep till Bytenight Action for Children 2017
by Colin Johnston 05 Oct '17

05 Oct '17

> > Dear all, one more sleep until ByteNight events across the UK on Friday night. > Please donate if you can electronically > > > See mydonate page linked to Byte Night https://mydonate.bt.com/fundraisers/colinjohnston1 <https://mydonate.bt.com/fundraisers/colinjohnston1> > > For more information go to www.bytenight.org.uk <http://www.bytenight.org.uk/> or to donate Text Byte17 and the amount to 70070. > > In just 1 days time, on Friday 6 October, I am spending one night sleeping rough for Byte Night. Byte Night works to support some of the 83,000 young people who are homeless in the UK. One in four young people who are homeless have been diagnosed with mental health issues and one in five will have self-harmed due to their situation at home. £10 could provide an hour’s support with a mental health practitioner for 1 young people to help them get through their issues. Action for Children has supported many young people to a safe and happy future. Unfortunately, so many more still need our help. You can help support young people across the UK by generously donating to my page > > > > Yours > > Colin Johnston > > Colin Johnston <https://myprofile.bt.com/Person.aspx?accountname=IUSER%5C600969844> > IT Support Senior Professional, Core IT Infrastructure > BT Technology Service & Operations <https://intra.bt.com/bt/tso/Pages/index.aspx> | Tel: 01313001324 <tel:01313001324> | MyProfile <https://myprofile.bt.com/Person.aspx?accountname=IUSER%5C600969844> | colin.johnstone(a)bt.com <mailto:colin.johnstone@bt.com> | http://fixit.bt.com/ <http://fixit.bt.com/> > > BT Group plc Registered office: 81 Newgate Street London EC1A 7AJ. Registered in England and Wales no. 4190816 This electronic message contains information from BT Group plc which may be privileged or confidential. The information is intended to be for the use of the individual(s) or entity named above. If you are not the intended recipient be aware that any disclosure, copying, distribution or use of the contents of this information is prohibited. If you have received this electronic message in error, please delete it and notify me immediately by telephone or email.

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