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Doug Madory

doug-madory

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Bio: Doug Madory is a Director of Internet Analysis at Dyn where he works on Internet infrastructure analysis projects. Doug has a special interest in mapping the logical Internet to the physical lines that connect it together, with a focus on submarine cables.

Author Posts:

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IPv4 Address Market Takes Off

April 6, 2015 • As the available supply of IPv4 addresses dwindles, the market for these virtual commodities...

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UK traffic diverted through Ukraine

March 13, 2015 • On the heels of the BGP leak yesterday that briefly impaired Google...

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Routing Leak briefly takes down Google

March 12, 2015 • This morning, users of Google around the world were unable to access...

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The Vast World of Fraudulent Routing

January 29, 2015 • As network security engineers have attempted to categorize blocks of...

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Internet for the Next 3 Billion

January 13, 2015 • Last month, I traveled to Doha, Qatar to participate in the ITU’s...

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On-going BGP Hijack Targets Palestinian ISP

January 9, 2015 •          Update (12:57 UTC, 10-Jan): We received the...

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What’s Next for Cuba?

December 18, 2014 • Nearly two years ago, we broke the story about the activation of the first submarine cable...

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Use Protection if Peering Promiscuously

November 12, 2014 • Last week, I wrote a blog post discussing the dangers of BGP routing leaks between peers,...

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Chinese Routing Errors Redirect Russian Traffic

November 6, 2014 • In recent weeks, Russian President Vladimir Putin announced a plan to enact measures to...

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Why Far-Flung Parts of the Internet Broke Today

September 18, 2014 • VolumeDrive is a Pennsylvania-based hosting company that uses Cogent...

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Sprint, Windstream: Latest ISPs to hijack foreign networks

September 12, 2014 • Last year my colleague Jim Cowie broke a story about routing hijacks that resulted in Internet...

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No turning back: Russia activates Crimean cable

July 31, 2014 • The Crimean peninsula depends critically on the Ukrainian mainland for...

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Kurdish ISPs enable growth of Iraqi Internet

July 22, 2014 • The recent violence in Iraq and the government’s actions to...

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Amid raging violence, Iraq orders Internet shutdowns

June 13, 2014 • Update (10:00ET, 14-Jun-2014): See below for a copy of Friday’s...

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Beware the Ides of March: Subsea Cable Cut Trend Continues

March 31, 2014 • Earlier this month, the International Cable Protection Committee, a submarine...

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Telenor activates historic link in Myanmar

March 25, 2014 • Photo by Jean-Marie Hullot on Flickr | CC Three years after the...

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Protests Lead to Outage in Thailand

December 2, 2013 • photo by Suriya Thonawanik Tensions in Thailand are high as a week of anti-government...