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DNSSEC Management

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November 7, 2022 |

The DNS service is one of the most important Internet and corporate network services, allowing the mapping of domain names to IP addresses. Without DNS, key applications simply do not work: web portals, e-mail, instant messaging, applications and internet protocols all rely on DNS to perform their operations.

Given this importance, DNS is a service which must be secured against all kinds of threats, whether malicious attacks or unintentional misconfigurations.

Over recent years, several vulnerabilities have illustrated the risks around DNS security. Dan Kaminsky demonstrated that the cache of a name server can easily be poisoned, enabling attackers to redirect users to a non-official website. The IP address associated to a domain requested by users can be modified in the DNS cache by a hacker, in order to redirect users to the hackerโ€™s website. Then the hacker can steal confidential login and password data before redirecting users to the real website. There are many other examples which illustrate the importance of DNS data integrity, all related to everyday use.

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