Network Operations

Tags: dns routing security rpki ipv4 ipv6 transfers bgp peering internet infrastructure

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Measuring IPv6 at Web Clients and Caching Resolvers (Part 1)

Emile Aben

It is important to keep an eye on how the IPv6 Internet develops. We wrote a script to measure the IPv4 capability, IPv6 capability and IPv4/IPv6 preference of end-users visiting our site. What is unique about this script is that it allows us also to measure the caching DNS resolver that the end-us…

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Find Abuse Handler Details Using the Abuse Finder

Paul Palse

The RIPE Database contains a lot of useful information about who to contact in case of network abuse or spam. But sometimes it can be difficult to find the right abuse handler information for a network resource in the RIPE Database. We developed an Abuse Finder tool that will make it easier.

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A Look at DNS Priming Queries to K-root

Emile Aben

In this article we take a look at DNS priming queries arriving during the deployment of a DNSSEC signed zone at the DNS root servers. We are specifically looking for potential problems as a result of this deployment.

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IPv4 Address Allocation Rates

Robert Kisteleki

On 30 January 2010 the RIR system reached a small milestone: on this day APNIC has surpassed the RIPE NCC in terms of total allocated/assigned IPv4 address space, as seen in the RIR stats files. On this occasion we decided to look a bit into how IPv4 allocation/assignment rates changed over the las…

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DNSSEC Key Roll-over Pitfalls

Mirjam Kühne

A few weeks ago the RIPE NCC was alerted to a rapid increase in DNSKEY queries for its signed reverse DNS zones. We did some investigations. Read about the results in this article.

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Members and Their Number Resources

Daniel Karrenberg

In the previous article we looked at membership growth over the years. In this article we will see how RIPE NCC Internet number resources are distributed among the membership, as of 1 January 2010.

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Measuring DNS Transfer Sizes - First Results

Daniel Karrenberg

Here are the first results of our DNS transfer size measurements. We are interested to determine any possible problems for users of K-root once it starts giving DNSSEC responses to resolvers that request them. DNSSEC responses are significantly larger than current responses. We are interested to le…

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