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!… Read more
Learn more about the RIPE Atlas active measurements network.
You can also find a collection of use cases, reviews and other articles written by RIPE Atlas users.
In this article, we give one example of the possible communities that are now easier to build around RIPE Atlas probes. With the tagging of similar probes, existing communities can use additional tools for creating and analysing RIPE Atlas measurements, such as "IXP Country Jedi", to create their own interpretation of the available data. We are hoping this is going to be an inspiration to the reader, and an invitation to play with the results and improve on the code. … Read more
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!… Read more
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. Such rituals stem from reality: leap seconds trigger poorly-tested code paths and run contrary to assumptions that system time always runs in one direction. It's useful to be aware of how your infrastructure handles leap seconds and how NTP servers handle them, so you can plan around the event. Here, we look at some of the NTP measurements the RIPE Atlas platform took around the last leap second, and approaches for handling them.… Read more
Here is an example of how cross-pollination between two or more 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 (hardware devices that measure Internet infrastructure). We are still interested in expanding this platform in areas and networks that need more coverage. … Read more
As RIPE Atlas is expanding, it is approaching the magical milestone of 10,000 probes. However, as our public graphs also illustrate, the expansion has slowed down recently. … Read more
At the RIPE NCC, we are grateful for the contribution RIPE Atlas ambassadors make to the success of the RIPE Atlas measurements platform. In this article, we focus on a handy RIPEstat tool that can be used to visualise the results of their efforts. The tool provides a historical view of country-specific growth of RIPE Atlas probe numbers and allows for comparisons of up to four countries in the same graph. … Read more
An increasing number of countries are passing laws that facilitate the mass surveillance of their citizens. In response, governments and citizens are increasingly paying attention to the countries that their Internet traffic traverses. In some cases, countries are taking extreme steps, such as building new IXPs and encouraging local interconnection to keep local traffic local. We find that although many of these efforts are extensive, they are often futile, due to the inherent lack of hosting and route diversity for many popular sites. We investigate how the use of overlay network relays and the DNS open resolver infrastructure can prevent traffic from traversing certain jurisdictions.… Read more
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 the ethical impact of their behaviour when using RIPE Atlas. … Read more
The fourth RIPE NCC Hackathon was as fun and productive as the previous three, with even more supporting organisations and participants. This short article aims to express our gratitude to everyone involved and to give a summary of our experiences, while several projects will be described in more detail in the follow-up articles. … Read more
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. … Read more
RIPE Atlas lets you make customised measurements from thousands of probes around the world. These measurements cost credits, which users usually earn by hosting or sponsoring RIPE Atlas probes - or you may have just been given a million RIPE Atlas credits as a member of one of the Regional Internet Registries. Find out how you can best spend your credits to check your services' connectivity and troubleshoot potential issues. … Read more
We started using RIPE Atlas to monitor and improve the services to our customers. We liked it so much that we're now a sponsor!… Read more