Author Archives: johnh

new technical report “When the Dike Breaks: Dissecting DNS Defenses During DDoS (extended)”

We released a new technical report “When the Dike Breaks: Dissecting DNS Defenses During DDoS (extended)”, ISI-TR-725, available at https://www.isi.edu/~johnh/PAPERS/Moura18a.pdf. From the abstract: The Internet’s Domain Name System (DNS) is a frequent target of Distributed Denial-of-Service (DDoS) attacks, but such attacks … Continue reading

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new talk “Internet Outages: Reliablity and Security” from U. of Oregon Cybersecurity Day 2018

John Heidemann gave the talk “Internet Outages: Reliablity and Security” at the University of Oregon Cybersecurity Day in Eugene, Oregon on April 23, 2018.  Slides are available at https://www.isi.edu/~johnh/PAPERS/Heidemann18e.pdf. From the abstract: The Internet is central to our lives, but we know astoundingly … Continue reading

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new project “Interactive Internet Outages Visualization to Assess Disaster Recovery”

We are happy to announce a new project, Interactive Internet Outages Visualization to Assess Disaster Recovery.   This project is supporting the use of Internet outage measurements to help understand and recover from natural disasters. It will expand on the visualization of … Continue reading

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new technical report “Back Out: End-to-end Inference of Common Points-of-Failure in the Internet (extended)”

We released a new technical report “Back Out: End-to-end Inference of Common Points-of-Failure in the Internet (extended)”, ISI-TR-724, available at https://www.isi.edu/~johnh/PAPERS/Heidemann18b.pdf. From the abstract: Internet reliability has many potential weaknesses: fiber rights-of-way at the physical layer, exchange-point congestion from DDOS at … Continue reading

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news story about measuring Internet outages

PCMag released a news story on January 3, 2018 about our measuring Internet outages, including discussion about the 2017 hurricanes like Irma, and our new worldwide outage browser.

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new website for browsing Internet outages

We are happy to announce a new website at https://ant.isi.edu/outage/world/ that supports our Internet outage data collected from Trinocular. Our website supports browsing more than two years of outage data, organized by geography and time.  The map is a google-maps-style … Continue reading

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new project LACANIC

We are happy to announce a new project, LACANIC, the Los Angeles/Colorado Application and Network Information Community. The LACANIC project’s goal is to develop datasets to improve Internet security and readability. We distribute these datasets through the DHS IMPACT program. As part of … Continue reading

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new technical report “LDplayer: DNS Experimentation at Scale”

We released a new technical report “LDplayer: DNS Experimentation at Scale”, ISI-TR-722, available at https://www.isi.edu/publications/trpublic/pdfs/ISI-TR-722.pdf. From the abstract: DNS has evolved over the last 20 years, improving in security and privacy and broadening the kinds of applications it supports. However, this … Continue reading

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new conference paper “Recursives in the Wild: Engineering Authoritative DNS Servers” in IMC 2017

The paper “Recursives in the Wild: Engineering Authoritative DNS Servers” will appear in the 2017 Internet Measurement Conference (IMC) on November 1-3, 2017 in London, United Kingdom. From the abstract: In In Internet Domain Name System (DNS), services operate authoritative name … Continue reading

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Evaluation of Hurricane Harvey’s Effects on the Internet’s Edge

On August 25, 2017 Hurricane Harvey made landfall in south Texas, causing widespread property damage, displacing more than 30,000 people, and costing more than 45 lives (as of 2017-09-01). We sympathize with those were hurt by this disaster, and hope … Continue reading

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