Dyn Research

The New Home Of Renesys

  • What Does “Internet Availability” Really Mean?

    What Does “Internet Availability” Really Mean?

    The Oracle Dyn team behind this blog have frequently covered ‘network availability’ in our blog posts and Twitter updates, and it has become a common topic of discussion after natural disasters...

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  • Performance Implications of CNAME Chains vs Oracle ALIAS Record

    Performance Implications of CNAME Chains vs Oracle ALIAS Record

    The CNAME resource record was defined in RFC 1035 as “the canonical name for an alias.” It plays the role of a pointer, for example, the CNAME informs the requestor that www.containercult.com is...

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  • North Korea Gets New Internet Link via Russia

    North Korea Gets New Internet Link via Russia

    This past weekend, North Korea expert Martyn Williams and I spotted the activation of a new internet path out of North Korea.  At 09:07:51 UTC on 1 October 2017, the country’s single internet...

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  • Internet Impacts of Hurricanes Harvey, Irma, and Maria

    Internet Impacts of Hurricanes Harvey, Irma, and Maria

    Devastation caused by several storms during the 2017 Atlantic hurricane season has been significant, as Hurricanes Harvey, Irma, and Maria destroyed property and took lives across a number of...

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  • Breaking the Internet: Swapping Backhoes for BGP

    Breaking the Internet: Swapping Backhoes for BGP

    The term “break[ing] the Internet” has taken hold over the last few years – it sounds significant, and given the role that the Internet has come to play in our daily lives, even a little scary. A...

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  • Large BGP Leak by Google Disrupts Internet in Japan

    Large BGP Leak by Google Disrupts Internet in Japan

    At 03:22 UTC on Friday, 25 August 2017, the internet experienced the effects of another massive BGP routing leak.  This time it was Google who leaked over 160,000 prefixes to Verizon, who in turn...

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  • Ukraine Leaks Russian Social Media Ban

    Ukraine Leaks Russian Social Media Ban

    Another development in the long-running conflict between Ukraine and Russia occurred in May of this year when Ukrainian President Petro Poroshenko enacted a ban on Russia’s four most prominent...

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  • .NE Body Out There?

    .NE Body Out There?

    Protecting end users starts with understanding their use and integration of services. For authoritative DNS, this includes human error when copying and pasting information between interfaces....

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  • Telecom Heroics In Somalia

    Telecom Heroics In Somalia

    Internet service in and around Mogadishu, Somalia suffered a crippling blow recently as the East African Submarine System (EASSy) cable, which provides service to the area, was cut by the anchor...

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  • Who Controls The Internet?

    Who Controls The Internet?

    The title of the paper Who controls the Internet? Analyzing global threats using property traversal graphs is enough to ensnare any Internet researcher. The control plane for a number of attacks,...

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  • A Baker’s Dozen, 2016 Edition

    A Baker’s Dozen, 2016 Edition

    As is our annual tradition, this blog provides a year-end review of how the Internet providers at the top of our Internet Intelligence – Transit global rankings fared over the previous year.  The...

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  • Cuba Up, Vietnam Down: Recent Subsea Cable Developments

    Cuba Up, Vietnam Down: Recent Subsea Cable Developments

    Recent submarine cable-related developments have impacted internet connectivity in locales as diverse as Vietnam, Cuba, India, the Marshall Islands and Russia’s Kamchatka Peninsula.  In this blog...

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  • Iran Leaks Censorship via BGP Hijacks

    Iran Leaks Censorship via BGP Hijacks

    Last week, we reported via Twitter that the Iranian state telecom TIC hijacked address space containing a number of pornographic websites.  The relevant BGP announcement was likely intended to...

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  • Iran Leaks Censorship via BGP Hijacks

    Iran Leaks Censorship via BGP Hijacks

    Last week, we reported via Twitter that the Iranian state telecom TIC hijacked address space containing a number of pornographic websites.  The relevant BGP announcement was likely intended to...

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  • War-torn Syrian city gets new fiber link

    War-torn Syrian city gets new fiber link

    The northern Syrian city of Aleppo is one of the key battlegrounds of that country’s on-going civil war as well as the epicenter of the European refugee crisis.  The most appropriate United States...

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  • BackConnect’s Suspicious BGP Hijacks

    BackConnect’s Suspicious BGP Hijacks

    Earlier this month, security blogger Brian Krebs broke a story about an Israeli DDoS-for-hire service, vDOS, which had been hacked, revealing “tens of thousands of paying customers and their...

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  • Syria goes to extremes to foil cheaters

    Syria goes to extremes to foil cheaters

    Early this morning in Syria, the Internet was almost entirely down for four hours.  It was the ninth such outage since 31 July 2016 — each one lasting from approximately 4am to 8am local time. ...

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  • Inside Dyn Research: North Korea

    Inside Dyn Research: North Korea

    Last week I published a blog that discussed the role Dyn has played in major international news stories. This week I’ve decided to pull back the curtain a bit and give you an in-depth look into...

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  • What A Turkish Coup Taught Me About The Media & The Power Of Internet Performance

    What A Turkish Coup Taught Me About The Media & The Power Of Internet Performance

    As a former journalist, I find my role as Director of Corporate Comms at Dyn fascinating. Based on the fact that Dyn has a unique perspective of the internet and employs world-class data...

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  • Owning The Internet Isn’t Cheating, Which Will Make The Iraqi Government Happy

    Owning The Internet Isn’t Cheating, Which Will Make The Iraqi Government Happy

    Before students around the world can embrace summer vacation, they must first endure final exams. This time-tested tradition brings late night cram sessions, the regurgitation of facts and...

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