.nz 7 little known facts about .nz You may already know that .nz is one of the most popular choices for New Zealanders to get themselves online, but the way we act online is changing everyday. There
Airflow Improving data workflows with Airflow and PySpark Within the Technical Research team, we have developed many data workflows in a variety of projects. These workflows normally need to run on a schedule, contain multiple tasks to execute
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
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. The other 3 are hosted by overseas providers
DNS traffic analysis 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
DNS traffic analysis Source Address Classification - Feature Engineering Problem background As we operate the authoritative name servers for the .nz ccTLD (Country Code Top Level Domain), we observe more than 500k unique source addresses sending DNS queries to
.nz DNS traffic: Trend and Anomalies As we run the .nz ccTLD (Country Code Top Level Domain) authoritative nameservers, we receive lots of DNS queries and answer each query with a DNS response. We capture these
Resolver centricity experiment The Domain Name System is a distributed database with a hierarchical structure. A complete DNS resolution is a time-consuming process composed of iterations of network communications between the DNS resolver and the name server chain. Hence, caching has been introduced to speed up the
Characterization of popular resolvers from .nz authoritative name servers' point of view As part of our role as .nz registry, we manage 4 out of 7 of the .nz authoritative name servers. We receive hundreds of millions of DNS queries from the
