The main rule of the DNSSEC protocol is to protect the network against any DNS protocol attack. DNSSEC adds a layer of security to the DNS infrastructure by digitally signing DNS records, ensuring data integrity and authenticity, and protecting against DNS spoofing and cache poisoning attacks.
While DNSSEC does protect the network against DNS server attacks indirectly by securing the DNS protocol itself, the main focus of the protocol is to prevent attacks on the DNS infrastructure and data integrity, rather than specifically targeting DNS server vulnerabilities.
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F5 GTM Security