DNS comes from its acronym in English Domain Name System which is the telephone book of the Internet. When we search for information online through domain names, such as google.com or nytimes.com, DNS basically translates domain names into IP addresses so that browsers can load Internet resources. DNS protection refers to protecting the integrity and availability of the DNS service itself, making it highly available to end users. This could include employing technologies such as anycast, load balancing, and other high availability and redundancy techniques to achieve and maintain DNS service availability. A Protection Against DoS Attacks detects and prevents denial of service for high amounts of traffic sent to attack.
WHY IT´S IMPORTANT?
One of the most well-known DNS attacks is DNS hijacking, which is a process in which someone redirects their traffic to a different destination than the one you attended to and even other attacks rely on DNS traffic to go unnoticed and achieve their goal. A denial-of-service attack can be quite critical to the business as they can be attacked by sending valid but high-volume traffic requests to leave them out, thus affecting their availability.