Our First DDoS attack

Operations and Culture
Location: Hall 1 B/C Level:
Average rating: ****.
(4.54, 39 ratings)

Your website just went down. As you try to understand what has gone wrong, you quickly realize something is different this time. There’s no clear reason why your site should be down, but indeed it is.

This talk is about the story of our team’s first unprepared fight
against a DDoS attack

The idea (what I’d like to convey)

I’d like to give a honest and detailed view of what happened when we were DDoS’ed. It was our first experience at this scale, and we were probably unprepared.

I’d like this to be clear from the presentation, and give lots of details on how we searched our way around and figured out our next steps as the attack itself evolved.

The outcome in the end was positive, and we were able to make some high-level changes to our infrastructure and architecture to (at least try to) better protect our systems in the future.

Audience level

  • intermediate to advanced
  • most suited for operations engineers
Photo of Cosimo Streppone

Cosimo Streppone

Opera Software ASA

Cosimo moved to Norway to join Opera Software 4 years ago.

Working as Lead Developer in the small my.opera.com team, he’s been responsible of the architecture, development, scalability and performance of the site.

Now he works in the Core Services team, helping develop, scale and occasionally crash web apps used by many every day.

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Picture of Bjoern Kaiser
Bjoern Kaiser
9/11/2011 10:28 CET

Loved it ! Critical, realistic and funny explained =) (Although the matter is not funny at all)



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  • Compuware Corporation
  • dynaTrace
  • Keynote Systems
  • New Relic
  • Citrix Systems
  • Google
  • Apica
  • AppDynamics
  • CDNetworks
  • Cotendo
  • Dyn Inc.
  • ImmobilienScout24
  • Spil Games
  • Dyn Inc.

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