Recent attacks targeting enterprise websites have created greater awareness around how critical DNS is for the reliability of internet services and the potentially catastrophic impact of a DNS outage. The DNS, made up of a complex system of root and lower level name servers, translates user-friendly domain names to numerical IP addresses. With few exceptions, DNS lives in a grey area between IT and network operations. With the increasing occurrences of distributed denial of service (DDoS) attacks, advanced persistent threats (APTs) and exploitation of user errors through techniques such as typosquatting and phishing, enterprises can no longer take a passive role in managing their DNS internet infrastructure.
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