Measurements and Statistics

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Measuring your Web Server Reachability with TCP Ping

Measuring your Web Server Reachability with TCP Ping

Rene Wilhelm

11 min read

HTTP measurements from RIPE Atlas probes are only possible towards RIPE Atlas anchors. However, when it comes to measuring the connectivity and latency of web servers on the network level, an alternative exists, which we call TCP Ping: a traceroute with special options that mimic the TCP handshake …

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Evaluation of Hurricane Harvey's Effects on the Internet's Edge

Evaluation of Hurricane Harvey's Effects on the Internet's Edge

John Heidemann

8 min read

On August 25, 2017 Hurricane Harvey made landfall in south Texas, causing widespread property damage, displacing more than 30,000 people, and costing more than 45 lives (as of 2017-09-01). We sympathize with those who were hurt by this disaster, and hope for swift recovery for the region. Here we e…

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The Next Generation of RIPE Atlas Anchors

The Next Generation of RIPE Atlas Anchors

Alun Davies

4 min read

With the v2 RIPE Atlas anchors no longer in production, we're busy looking at new hardware options. Here's the story so far.

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Introducing NAT64 Checker

Introducing NAT64 Checker

Jan Zorz

6 min read

There has been much discussion about the need for IPv6 over the past decade and more, but with IPv4 addresses approaching exhaustion, this has seen an upsurge in IPv6 deployments over the past year. In particular, mobile operators are increasingly deploying IPv6-only in their consumer networks, whi…

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18
Processing RIPE Atlas Results with jq

Processing RIPE Atlas Results with jq

Stéphane Bortzmeyer

13 min read

A short tutorial on the use of the jq processor and programming language to analyse RIPE Atlas JSON files.

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SHA2017: Hackers' Camping, RIPE Topics

SHA2017: Hackers' Camping, RIPE Topics

Vesna Manojlovic

9 min read

Today begins the newest edition of four-yearly Dutch summer camping conferences for and by hackers: SHA2017. Since there is an overlap between topics and participants within the RIPE community, this is an invitation to the talks and workshops that might interest you.

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Detecting Network Outages with RIPE Atlas

Detecting Network Outages with RIPE Atlas

Anant Shah

7 min read

This post describes a technique to detect bursty TCP disconnections, and how it can be used on RIPE Atlas data to better detect outages in the Internet.

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Public Policy Demands Better Statistics

Public Policy Demands Better Statistics

George Michaelson

20 min read

This is a story about science and data and how we need to apply rigour if we want to use data to inform and influence policy decisions. It is also a story about HTTPS.

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