Hello,

More about DNS-based DDoS attacks and more..

Here is the ultimate guide to preventing DNS-based DDoS attacks:

The ultimate guide to preventing DNS-based DDoS attacks

Read more here:

https://www.infoworld.com/article/2612835/the-ultimate-guide-to-preventing-dns-based-ddos-attacks.html

And read my following previous writing:

How to protect organizations from DDoS attacks targeting DNS
infrastructures and web server..

I invite you to read the following article about
how to protect organiations from DDoS attacks targeting DNS
infrastructures, i think it needs tools dedicated to mitigating DDoS
attacks on the infrastructure. These detect the unusually high volume of
traffic generated by an attack, then eliminate the threat using
intelligent "routing" to control the DDoS threat, read the following
article so that to notice it:

How to protect organizations from DDoS attacks targeting DNS infrastructures

https://translate.google.com/translate?hl=en&sl=auto&tl=en&u=https%3A%2F%2Fsecurite.developpez.com%2Factu%2F315475%2FComment-proteger-les-organisations-face-aux-attaques-DDoS-visant-les-infrastructures-DNS-par-Philippe-Alcoy-specialiste-de-la-Securite-chez-Netscout%2F

And read the following:

How ransomware players are adding DDoS attacks to their arsenal

"According to Cyber ​​security firm NETSCOUT, by combining file
encryption, data theft and DDoS attacks, cybercriminals have essentially
developed three-pronged ransomware designed to increase payment
possibilities. SunCrypt and Ragnor Locker ransomware are said to be the
first to use this tactic. But since then, other operators have also
followed, including Avaddon and Darkside, the perpetrator of the
Colonial Pipeline incident. From the perspective of threat actors,
adding DDoS attacks to the list of ransomware services is a smart
business move"

Read more here:

https://translate.google.com/translate?hl=en&sl=auto&tl=en&u=https%3A%2F%2Fsecurite.developpez.com%2Factu%2F315711%2FComment-les-acteurs-des-ransomwares-ajoutent-des-attaques-DDoS-a-leur-arsenal-pour-augmenter-la-pression-sur-les-victimes%2F

More philosophy about Denial-of-Service (DoS) attacks..

I invite you to read the following interesting article:

Businesses blame rivals for DDoS attacks

https://www.computerweekly.com/news/450414239/Businesses-blame-rivals-for-DDoS-attacks

And here is also how to prevent your Web Server from Denial-of-Service
attack:

You have to limit requests to the server by for example doing this:

https://docs.oracle.com/cd/E19146-01/819-2629/gdhhn/index.html

Thank you,
Amine Moulay Ramdane.