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January 11
December 18
November 12
Detecting resolvers at .nz
This is a follow-up post to summarise the work of resolver detection presented at DNS-OARC 29. We built a classifier that can tell, with certain probability, if a source address observed at .nz represents a DNS resolver or not.
Read moreNovember 09
October 08
DNS Flag day
There are times when decisive action is the straightest path to success. Starting from 1 February 2019, the organisations behind open source DNS software implementations are going to deploy changes to their code that could break your domains.
Read moreJuly 29
Domain popularity across countries
As the DNS operator of .nz, we manage 4 of the 7 .nz nameservers ourselves and we've been collecting their DNS traffic.
Read moreJune 08
Source Address Classification - Clustering
My previous post "Source Address Classification - Feature Engineering" introduced the background of the source address classification problem and a critical part of the work - generating the features to be fed into a machine learning model.
Read moreMay 28
Analysis of registrations from registrant point of view
This is a follow-up post on registrant classification. Before reading this post, check out Registrant Classification using Machine Learning (19 Feb 2018).
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