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A Tale of Using Public DNS Servers in Iran — Part 1

A Tale of Using Public DNS Servers in Iran — Part 1

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Babak Farrokhi

4 min read

While most Internet users are not aware of the importance of DNS resolution in their overall web browsing experience, they often complain about shortage of bandwidth when experiencing sluggish Internet connectivity. It is no surprise that most of the service providers also ignore this fact by re…

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Evaluating IPv4 and IPv6 Packet Fragmentation

Evaluating IPv4 and IPv6 Packet Fragmentation

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Geoff Huston

24 min read

One of the more difficult design exercises in packet-switched network architectures is that of the design of packet fragmentation. In this article, I’d like to examine IP packet fragmentation in detail and look at the design choices made by IP version 4, and then compare that with the design choice…

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Behind the Curtain: Making IPv6 Work

Behind the Curtain: Making IPv6 Work

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George Michaelson

8 min read

Wouldn’t it be nice if turning on IPv6 really was ‘press one button and the rest is magic’ easy?

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Keeping the Registry Up to Date in a World of IPv4 Transfers

Keeping the Registry Up to Date in a World of IPv4 Transfers

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Matt Parker

4 min read

High quality registry data is important - even more so with the recent increase in address transfers and the exhaustion of the global IPv4 pool. This article explores how we will be enhancing our tools and processes to ensure the RIPE Registry remains up-to-date in this challenging environment.

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Christmas Gift Idea: Some IPv6 Experience

Christmas Gift Idea: Some IPv6 Experience

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Marco Hogewoning

4 min read

The holiday season is rapidly approaching and this year is coming to a close, another one done and another one that seen some great and wonderful and also unfortunately some sad moments. One of those key moments was the depletion of the IPv4 pool in the ARIN region, which for some probably means…

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DNS Censorship (DNS Lies) As Seen By RIPE Atlas

DNS Censorship (DNS Lies) As Seen By RIPE Atlas

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Stéphane Bortzmeyer

23 min read

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?

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DomainMON Matrix

RIPE Atlas: DomainMON is Here

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Suzanne Taylor

5 min read

A few weeks ago we gave you a heads up about a new visualisation tool in RIPE Atlas called DomainMON, and we're pleased to announce that this is now available for all RIPE Atlas users with available credits.

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Examining IPv6 Performance

Examining IPv6 Performance

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Geoff Huston

17 min read

Every so often I hear the claim that some service or other does not support IPv6 not because of some technical issue, or some cost or business issue, but simply because the service operator is of the view that IPv6 offers an inferior level service as compared to IPv4, and by offering the service ov…

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Processing RIPE Atlas and RIPEstat Data with Hadoop

Processing RIPE Atlas and RIPEstat Data with Hadoop

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Paul de Weerd

4 min read

The RIPE Routing Information Service (RIS) and RIPE Atlas produce large amounts of data that needs to be processed, stored and made available to the public. We've been using Hadoop for some time now. In this article we look at the design of the infrastructure we currently have in place and describe…

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