BrandPost: What’s Missing from DNS in the Enterprise?

BrandPost: What’s Missing from DNS in the Enterprise?

A Brief DNS History

DNS is the internet’s backbone, the ‘network before the network’. Originally designed to solve the problem of knowing how to route email between disparate internet hosts, DNS is now a 35-year old connection protocolat the heart of every network. However, there are inherent shortcomings. First, DNS is naïve – built for an internet without trust requirements as its designers could not have foreseen today’s threats. DNS was built to simply answer questions to establish a connection, and it’s good at that – but that also leaves it susceptible. For example, the support for recursive DNS requests, which query other servers repeatedly, are vulnerable to fake requests from a spoofed IP address leading to Amplifier attacks. DNS caches can be poisoned by viruses, causing domain lookups to go to the wrong IP address. And yet, DNS is an integral part of every email, every web access, and every internet transaction.

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