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5 minutes to understand – DNS cache poisoning

[5 MINUTES TO UNDERSTAND] - DNS cache poisoning attack

The DNS (Domain Name System) is a key service of the Internet. It is a giant, hierarchical and distributed directory that associates IP addresses with domain names that are easier to identify, remember and transmit. It is the cornerstone of the Internet, whose infrastructure has flaws by its very conception, making it an ideal target for attacks. On one hand, the DNS service is based on the authoritative DNS, which holds the information, and on the other hand, the resolver DNS, which carries out the resolution for the web users.
The DNS cache poisoning attack targets resolver DNS.

Find in this “5 minutes to understand” document, what is this DNS cache poisoning attack and how to protect against it.

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