A distributed denial of service (DDoS) attack against DynDNS is causing havoc online, with many major websites reportedly unavailable. According to Dyn DNS, the attack started at 11:10 UTC, and it targeted its managed DNS service.
The Domain Name System (DNS) is a tool used to resolve human-readable web addresses (like “thenextweb.com”) against IP addresses.
Many sites and services use DynDNS as their upstream DNS provider, including Github, Twitter, SaneBox, Reddit, AirBnB, and Heroku. All of these are reportedly experiencing outages and downtime, either partially or totally.
t’s not immediately obvious who is behind this DDoS attack. However, the fact that the attackers were able to disrupt the DNS provider used by some of the most popular websites tells a lot about their abilities.