Massive dDoS from AWS

At the moment we are facing a massive DoS from AWS against the authoritative DNS Servers from Greenbone. The attacker is flooding us with bogus dictionary queries like:

As long AWS is not acting we will drop ALL direct DNS querys from AWS Networks flooding us with this bogus requests against our authoritative DNS Servers.

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Some additional info: if you are using the default DNS in AWS you may be affected by this and something to try is using a different DNS.

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Our Sysadmin team together with external experts managed to migrate the DNS to a distributed secure and highly redundant service.

So there should be no longer any issues with DNS.