DDoS Protection

Kinds of ddos attacks
Distributed Denial of Service (DDoS) attacks are malicious attempts to disrupt the regular functioning of a network, service, or website by overwhelming it with a flood of traffic. There are several types of DDoS attacks, each employing different techniques to achieve their objectives. Here are some common types of DDoS attacks:

Volumetric Attacks: These attacks aim to flood the target network or server with a massive volume of traffic, consuming its bandwidth and resources. It involves sending a high volume of data packets, often using botnets or amplification techniques like DNS reflection or DNS amplification.

TCP/IP Attacks: These attacks exploit vulnerabilities in the TCP/IP protocol stack to exhaust system resources or disrupt connectivity. Examples include SYN Flood attacks, which overwhelm the target with a flood of incomplete connection requests, or TCP reset attacks, which send spoofed TCP reset packets to terminate established connections.

Application Layer Attacks: These attacks target the application layer of a network or server, aiming to exhaust its processing capacity or exploit vulnerabilities in specific applications. Common types include HTTP Flood attacks, which flood the target with HTTP requests, and Slowloris attacks, which exhaust server resources by opening many slow connections.

State-Exhaustion Attacks: These attacks aim to exploit limitations in network infrastructure devices, such as firewalls, load balancers, or application servers. By depleting the resources of these devices, attackers can disrupt the target's connectivity. Examples include ICMP Flood attacks, which flood the target with ICMP Echo Request packets, or UDP Flood attacks, which flood the target with UDP packets.

Reflective/Amplification Attacks: These attacks involve using a large number of open DNS resolvers, NTP servers, or other publicly accessible services to amplify the volume of traffic directed at the target. The attacker spoofs the source IP address, making the target appear as the source of the amplified traffic, overwhelming its resources. DNS amplification attacks and NTP amplification attacks are examples of this type.

IoT-Based Attacks: With the proliferation of insecure Internet of Things (IoT) devices, attackers can compromise vulnerable devices and create large botnets to launch DDoS attacks. These attacks, known as IoT botnet attacks, can generate massive traffic volumes, leading to significant disruptions.

It's important to note that the techniques and characteristics of DDoS attacks are constantly evolving, as attackers seek new ways to bypass defenses. Network administrators and security professionals need to stay updated on emerging attack methods and employ robust mitigation strategies to defend against DDoS attacks.