Updated on 2024-04-15 GMT+08:00

Common DDoS Attacks

DoS attacks are also called flood attacks. They are intended to exhaust the network or system resources on the target computer, causing service interruption or suspension. Consequently, legitimate users fail to access network services. A DDoS attack involves multiple compromised computers controlled by an attacker flooding the targeted server with superfluous requests. Table 1 lists common DDoS attacks.

Table 1 Common DDoS attacks

Attack Type

Description

Example

Network layer attack

Occupies the network bandwidth with volumetric traffic, causing your service unable to respond to legitimate access requests.

NTP flood attack

Transport layer DDoS attack

Occupies the connection resources of the server, causing denial of services.

SYN flood attack and ACK flood attack

Session layer attack

Occupies SSL session resources of the server, causing denial of services.

SSL slow connection attack

Application layer attack

Occupies the application processing resources of the server and consumes its processing performance, causing denial of services.

HTTP GET flood attack and HTTP POST flood attack