Based in Paris (France)
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I work at AFNIC (the registry of .fr domain names), in the R&D department, on, among other things, DNS, security, statistics.
There have been several calls for Russian Internet networks to be shut down in one way or another and announcements that Russia is going to make such cuts. In this article, Stéphane Bortzmeyer explores the issue from a technical point of view.
There are several ways to create RIPE Atlas measurements, thanks to its API. Here, we present Blaeu, a set of tools to create one-off measurements, mostly to debug temporary issues.
On 17 October 2016, a website hosted by the French Ministry of the Interior went offline when a large number of customers of the Internet service provider, Orange, were redirected to the site. The problem occurred after Google, Wikipedia and cloud provider OVH were mistakenly placed on a terrorism …
This article explains how I use RIPE Atlas probes, the official API and custom scripts to debug network issues.
More and more governments, authorities and courts are requesting censorship of Internet content. It is often done via a lying DNS resolver. Can we use RIPE Atlas probes to see it, and how?
If you monitor your external Internet connectivity, you may wonder which machine is the best to ping. Hesitate no more - you can use RIPE Atlas anchors as landmarks.
The techniques used by the L-root DNS server are documented in RFC 7108 "A Summary of Various Mechanisms Deployed at L-Root for the Identification of Anycast Nodes". These techniques can be used by the RIPE Atlas probes to find the instance of L-root they are talking to.
Each RIPE Atlas probe has at least one DNS resolver, indicated by a DHCP reply on the local network of the probe. Irrespective of the IP address of the resolver, this server may have IPv4 and IPv6 connectivity or only IPv4 connectivity. What is the percentage among RIPE Atlas probes?
This article is intended to make RIPE Atlas users aware of ethical issues that could arise when using RIPE Atlas. We do not intend to propose any new formal processes or procedures to address the relevant ethical issues, but we do want to encourage members of the RIPE Atlas community to consider th…
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One can note that such an incident with censorship already happened in Denmark http://www.computerworld.dk/art/214431/koks-hos-dansk-politi-spaerrer-for-8-000-websites Unfortunately, on the Internet, the experience is useless :-(
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