Description: DNS cache poisoning is a maliciously created or unintended situation that provides data to a caching Domain Name System server that did not originate from authoritative Domain Name System (DNS) sources. This can happen through improper software design, misconfiguration of name servers, and maliciously designed scenarios exploiting the traditionally open-architecture of the DNS system. Once a DNS server has received such non-authentic data and caches it for future performance increase, it is considered poisoned, supplying the non-authentic data to the clients of the server.
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