DNS-Amplification-Attack
DNS Amplification Attack is a type of cyber attack that is used to overwhelm a target website or server with traffic. In this attack, the attacker sends a large number of DNS lookup requests to a vulnerable DNS server. The attacker forges the source address of these requests to make it appear as if they are coming from the targeted victim’s IP address. The DNS server then responds to these requests with a much larger amount of data, amplifying the traffic sent to the victim’s server.
This attack is particularly effective because the attackers can send a relatively small amount of traffic to the DNS server, but receive a much larger amount of traffic in response. This makes it easier for the attackers to overwhelm the victim’s server, as it doesn’t require as much bandwidth as a direct attack.
To protect against DNS Amplification Attack, DNS servers should be configured to only respond to requests from authorized sources and should have filters in place to detect and stop excessive traffic. Additionally, website and server admins can use tools such as content delivery networks or DDoS protection services to help mitigate the effects of an attack.