Stuff of all aspects of DDoS attacks

I'm fainting, let's read some refined posts in some protocol analysis expert forums.

There's everything, this one has to be explained, there are too many things.

The most primitive, the most brutal, the most effective, and the need for many, many broilers.

DDoS is also known as distributed denial of service, and the full name is distributed denial of service, which is originally the use of reasonable requests to overload resources, resulting in unavailability of services, resulting in servers rejecting normal traffic services.

For example, there is a fixed number of hotel rooms, such as 50 rooms, when they are full, and then there are new users who want to live in, they must wait for the previous users to go out, if the users do not go out, then they cannot come to new customers, which leads to the overload of the hotel, which is the case"Denial of Service"If you want to continue to provide resources, then the hotel should increase its own resources, and the same is true for servers.

Denial of service refers to the state in which the application system cannot provide services to the outside world normally, such as network congestion, system downtime, and slow response.

Denial-of-service attack (DoS): A denial-of-service attack (DoS) is an attack that causes a target system to enter a denial-of-service state through various technical means, including exploiting vulnerabilities, consuming application performance, and consuming application bandwidth.

Distributed denial-of-service attack (DDoS): It is an advanced method of denial-of-service attack, which uses a globally distributed botnet to launch an attack, which can generate a large-scale denial-of-service attack.

Vulnerability: It is only effective for targets with specific vulnerabilities, and usually sends specific packets or a small number of packets to achieve the attack effect.

Business-oriented (mainly consuming the performance of the business system): It is highly related to the business type, and the corresponding attack methods need to be adopted according to the application type of the business system to achieve the effect.

Traffic-oriented (mainly consuming bandwidth resources): The attack method mainly consumes the bandwidth resources of the target service system, which usually causes network congestion and affects normal services.

It's simple, ddos:

So when you pour a ton of water into the toilet at once, the sewer is very thin at this time, and it takes a long time for the water to run out, then this is the principle of DDoS, in the network, the slower the network speed (the smaller the bandwidth), the easier it is to be attacked, the more difficult it is to recover, because the network data is full of bandwidth, do you understand? I'm from the "Ethical Hacking" forum

Roughly speaking, if your server can allow 30 people to enter and exit, I will spend money to hire 300 people to rush into your door together, and your server will be paralyzed, and those who normally want to enter will not be able to enter. Got it?

It's just that the traffic is blocked, and that's pretty much what I said upstairs.

A distributed denial of service attack (DDoS) is when multiple attackers in different locations launch attacks against a target at the same time. There are two cases:

1. Multiple attackers launch attacks on the target at the same time in accordance with the pre-specified regulations, overloading the attacked object and causing a denial of service.

2. An attacker controls multiple machines located in different locations, and then uses these machines to attack the attacked object at the same time.