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 block list.
I work at AFNIC (the registry of .fr domain names), in the R&D department, on, among other things, DNS, security, statistics.
Pages created by Stéphane Bortzmeyer
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.