What is Domain Name System Security Extensions (DNSSEC)? | DDI (Secure DNS, DHCP, IPAM) | Infoblox
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What is Domain Name System Security Extensions (DNSSEC)?

The Domain Name System Security Extensions (DNSSEC) is a suite of Internet Engineering Task Force (IETF) specifications for securing certain kinds of information provided by DNS for use on IP networks, DNSSEC is a set of extensions to DNS which provide to DNS clients (resolvers) origin authentication of DNS data, authenticated denial of existence, and data integrity, but not availability or confidentiality. DNSSEC is necessary because the original DNS design did not include security, but rather was designed to be a scalable distributed system. DNSSEC adds security while maintaining backwards compatibility.

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