What are the ddos ??methods?

Ddos attacks mainly include the following three methods.

High-traffic attacks

High-traffic attacks saturate the network's bandwidth and infrastructure through massive traffic, consuming them all, thus achieving the purpose of flooding the network. Once traffic exceeds the capacity of the network, or the network's ability to connect to the rest of the Internet, the network becomes inaccessible. Examples of high-traffic attacks include ICMP, fragmentation, and UDP flooding.

TCP State Exhaustion Attacks

TCP State Exhaustion attacks attempt to consume the connection state tables present in many infrastructure components, such as load balancers, firewalls, and the application server itself. For example, the firewall must analyze each packet to determine whether the packet is a discrete connection, a continuation of an existing connection, or the completion of an existing connection. Likewise, intrusion prevention systems must track state to implement signature-based packet inspection and stateful protocol analysis. These devices and other stateful devices—including those responsible for the balancer—are frequently compromised by session flooding or connection attacks. For example, a Sockstress attack can quickly flood a firewall's state table by opening sockets to populate the connection table.

Application layer attacks

Application layer attacks use more sophisticated mechanisms to achieve the hacker's goals. Rather than flooding the network with traffic or sessions, an application layer attack targets a specific application/service and slowly exhausts resources on the application layer. Application layer attacks are very effective at low traffic rates, and the traffic involved in the attack may be legitimate from a protocol perspective. This makes application layer attacks more difficult to detect than other types of DDoS attacks. HTTP floods, DNS dictionaries, Slowloris, etc. are all examples of application layer attacks.

What is a DDOS attack?

I believe everyone has heard of DoS attacks, DDoS attacks and DRDoS attacks! DoS is the abbreviation of DenialofService, which means denial of service, and DDoS is the abbreviation of DistributedDenialofService, which is distributed denial of service, and DRDoS is the abbreviation of DistributedReflectionDenialofService. Abbreviated, this is what distributed reflective denial of service means