What is an application layer denial of service attack

The purpose of this article is to share with you what is an application layer denial of service attack. The editor thinks it is very practical, so I hope you can learn something after reading this article. Let's take a look at it with the editor.

The application layer denial of service attack refers to the application layer DDOS,DDOS, also known as distributed denial of service, which is different from the network layer DDOS. Because it occurs in the application layer, the TCP three-way handshake has been completed, the connection has been established, and the IP address of the attack is real.

Application layer denial of service attack

Introduction to DDOS

DDOS is also called distributed denial of Service (DDoS). Its full name is Distributed Denial of Service. DDOS was supposed to use reasonable requests to overload resources, resulting in unavailability of services.

Network layer DDOS: forges a large number of source IP addresses and sends a large number of SYN packets to the server, because the source address is fake and will not reply, consuming a lot of server resources (CPU and memory)

Application layer DDOS

The application layer DDOS, which is different from the network layer DDOS, occurs in the application layer, so the TCP three-way handshake has been completed, the connection has been established, and the IP address that launched the attack is real.

CC attacks: continuously initiate normal requests to some resource-consuming application interfaces to consume server-side resources

Limit request frequency: limit the frequency of requests for each client in the application

The above is what is the application layer denial of service attack, the editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.