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Domain Name System

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The Domain Name System (DNS) is a critical service for the operation of the Internet as we know it. Although the process of resolving human readable domain names into Internet-routable IP addresses …

The Domain Name System (DNS) is a critical service for the operation of the Internet as we know it. Although the process of resolving human readable domain names into Internet-routable IP addresses may seem simple, this process is backed by a massive, globally-distributed database. The reliable functioning of this system impacts all users – from end users, to system administrators, to security professionals and event entire countries. Because of behavior and ubiquity of DNS, it has recently become a focus for attackers, especially as both a source and target for distributed denial of service (DDoS) attacks.

In this presentation, Tom will provide an overview of the operation and design of the Domain Name System, focusing on both the global structure along with best practices for a local deployment. Security considerations will be a core component of the webinar, including an overview of recent attacks leveraging the fundamental operation of DNS along with improperly configured resolvers resulting in significant interruptions in Internet service.

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