What is a buffer overflow ？

Buffer overflow means that when the computer fills the buffer with data bits, it exceeds the capacity of the buffer itself , Make the overflow data over the legal data , By writing to the program's buffer beyond its length , Cause buffer overflow , To destroy the program stack , Cause a program to crash or to switch to other instructions , To achieve the purpose of the attack .

A simple example of the principle of buffer overflow attack （C Language writing ）

Open 0day How to check vulnerabilities ？

“0day” It's widespread , How to prevent and control calmly ？

“0day” It's widespread , How to prevent and control calmly ？_ Loophole

Talking about DOS And DDOS Principle attacks

According to the time and way of attack, it can be divided into DDOS For the following ：

SYN Flood attack 、ACK Flood attack 、Connection Flood attack 、HTTP Get Flood attack

Talking about DOS And DDOS Principle attacks _pygain The blog of -CSDN Blog _ddos Attack principle

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