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DDoS Attacks on Open Source Infrastructure

Session
Until July 14:
✓ Workshop Day for free
✓ Arduino or Echo Dot fo free
✓ Save up to 690€
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Bis 14. Juli:
✓ Workshop Tag gratis
✓ Arduino oder Echo Dot for free
✓ Bis zu 690 € sparen
Jetzt anmelden
Thank you for attending
✓ See you in 2023
Danke für Ihre Teilnahme
✓ Wir sehen uns in 2023

Denial of Service attacks, distributed or not, usually target companies in an effort to sabotage their business; most commonly for the financial gain of the attackers by extorting money. We never imagined that such an attack would target not-for-profit open source projects and their infrastructure. We could not have been more wrong. In May 2022, we noticed a spike in traffic—500 times its usual average! The webserver that hosts the repository for PHP Archives (PHAR) of PHPUnit was being assaulted with a Distributed Denial of Service (DDoS) attack using HTTP flooding, almost fully exhausting the server’s bandwidth. In this post-mortem analysis, Arne Blankerts, the system administrator for phpunit.de, and Sebastian Bergmann, the maintainer of PHPUnit, share the lessons they had to learn while dealing with this attack.

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