Friday, December 4, 2020

How to face a DNS poisoning problem?

Hi there,

My company has a domain that some DNS in the world can't resolve correctly. I thought that the piramidal structure of DNS would cure itself passing some time, but it didn't.

We have found some DNS that wrong resolve our names, and we'll alert the owner of these... but we can't be sure that they listen us and can't be sure that they are the uniques poisoned DNS.

What can we do?

What I can say is that my on-premise DNS are OK and my authoritative DNS are ok too...



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