Measurements and Statistics

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Measuring the KSK Roll

Measuring the KSK Roll

Geoff Huston

23 min read

When viewed as a network infrastructure, looks can be very deceiving when looking at the DNS. It appears to be a simple collection of resolvers and servers. Clients pass their DNS name resolution queries to resolvers, who then identify and ask an appropriate authoritative name server to resolve …

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Upstream Visibility: Monitor the Visibility of your Prefix

Upstream Visibility: Monitor the Visibility of your Prefix

Massimo Candela

6 min read

Upstream Visibility is the new tool produced by the Computer Network Research Group of Roma Tre in collaboration with the RIPE NCC. It is a web application which proposes a concise way of visualising interdomain routing data of a specified prefix.

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Persistent DNS Connections for Reliability and Performance

Persistent DNS Connections for Reliability and Performance

Baptiste Jonglez

10 min read

For decades, the Domain Name System (DNS) has relied on UDP as its transport protocol of choice, mostly because of its simplicity. New transports such as DNS-over-TLS and DNS-over-HTTPS are now gaining popularity: they offer increased privacy while preventing the use of the DNS as a DDoS attack vec…

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Researchers' first Encounter with the IETF Community: Measuring TCP, HTTP/2 and QUIC

Researchers' first Encounter with the IETF Community: Measuring TCP, HTTP/2 and QUIC

Torsten Zimmermann

6 min read

As Ph.D. students, our typical encounter with the IETF community and their work is by stumbling over RFCs and Internet-Drafts that either relate to or are a fundamental basis for our research. Beyond that, for us, the Internet Engineering Task Force (IETF) has been a vague entity focused on standar…

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Let's Connect! Easy to Install and Secure VPN Software that Respects your Privacy

Let's Connect! Easy to Install and Secure VPN Software that Respects your Privacy

Rogier Spoor

3 min read

Going online on unknown Internet hotspots - whether at a restaurant, an airport or in a restaurant - isn't actually very safe or secure for users. This is due to the open character of hotspots which makes it easy to impersonate legitimate hotspots and eavesdrop on traffic - or even serve malware. T…

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Passive Observations of Large DNS Service

Passive Observations of Large DNS Service

Wouter de Vries

5 min read

In 2009, Google launched its Public DNS service, with its characteristic IP address 8.8.8.8. Since then, this service has grown to be the largest and most well-known DNS service in existence. Due to the centralisation that is caused by public DNS services, large content delivery networks (CDNs), su…

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The Uncertainty of Measuring the DNS

The Uncertainty of Measuring the DNS

Geoff Huston

22 min read

The period around the end of the nineteenth century and the start of the twentieth century saw a number of phenomenal advances in the physical sciences.

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Comparing Virtual and Metal RIPE Atlas Anchors

Comparing Virtual and Metal RIPE Atlas Anchors

Stephen Strowes

10 min read

Our VM pilot allows us an opportunity to run a like-for-like comparison between two RIPE Atlas anchors. We're grateful for the support from DigitalOcean, who are running two machines (one metal, one virtual) from the same geographical location.

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Outcome of the RIPE Atlas Anchor VMs Pilot

Outcome of the RIPE Atlas Anchor VMs Pilot

Robert Kisteleki

7 min read

The pilot we ran to assess the feasibility of involving virtual machines in the pool of RIPE Atlas anchors is complete and the results are good.

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Lightweight 4over6: One-step Further Than Dual-stack Networks

Lightweight 4over6: One-step Further Than Dual-stack Networks

Diego Pino Garcia

5 min read

Dual-stack has been one of the most popular transition technologies used to deploy IPv6. This is largely because it allows for routing of IPv4 and IPv6 traffic in parallel.

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