Prevent DNS/DoS Attack

[tropicanaslim]

Happy Weekend CheckMates.. 

But there is no weekend for mitigate an attack 🙂

so friday nite, my cust got an attack and impacted to some application can't access and dns was down.

we suspect because high rate access, either DoS or DNS attack.

Since all service already up and running well, my cust request to check and improve the current firewall which is Check Point as Perimeter Gateway.

anyone has idea how to check and analyse the issue and how we can protect from high access on dns or dos attack? Thankyou!