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Visualization and Monitoring for the Identification and Analysis of DNS Issues

Massimo Candela — 07 Sep 2015
The user experience of an Internet service depends partly on the availability and speed of the Domain Name System (DNS). DNS operators continually need to identify and solve problems that can be located at the end user, a name server, or somewhere in between. In this paper, we show how DNSMON, a production service for measuring and comparing the availability and responsiveness of key name servers, correlates and visualizes different types of measurements collected by RIPE Atlas vantage points worldwide. DNSMON offers an interactive view, both historic and near real-time, at different levels of detail. It has successfully revealed and allowed analysis of many operational issues, including less obvious ones

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