Networking Professional DNS Infrastructure

Networking Professional DNS Infrastructure
The domain name system (DNS) is considered by many networking professionals to be the lifeblood of the Internet. To the common Internet user, DNS is transparent; users simply type the human friendly name of where they want to go into their Web browser (i.e., www.arbornetworks.com) and the site appears. In reality, the world’s DNS infrastructure is actually a very complex system of relationships, DNS registrars and a well-known hierarchy of distributed servers. Though the Internet’s overall DNS infrastructure is designed for fault tolerance, any individual node is actually very fragile and susceptible to simple administrative errors or malicious attacks such as Compromised DNS Administration, DNS Cache Poisoning, or DNS Amplification Attacks which exploit known DNS and IP vulnerabilities
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