Distributed Denial of Service Attack Attack (DDoS) is a common and difficult attack method used by hackers.There are many kinds of DOS attacks.The most basic DOS attack is to utilize reasonable service requests to take up too many service resources,anti DDOS so that legitimate users can not get the service response.The DDoS attack method is a kind of attack that has been developed on the basis of the traditional DOS attack.The DDoS attack is a kind of attack that has been developed on the basis of the traditional DOS attack. A single DOS attack is generally one-to-one, and is effective when the target has a low CPU speed and low performance indicators such as memory or network bandwidth.

DDoS attacks are varied and difficult to prevent. When you want to build a defense against DDoS, you need to master the variant forms of these attacks.

For the understanding of DDoS defense, to deal with DDOS is a systematic project,virtual Machine cloud want to just need to rely on their own some kind of management system or product to prevent DDOS is unrealistic. Can be fully affirmed that the complete elimination of DDOS is currently impossible, but through appropriate measures to improve the resistance to 90% of the DDoS attacks can really do, based on the network attack and defense aspects of the cost of controlling the overhead, if by choosing the appropriate way to enhance our ability to defend against the DDOS, which means that increase the cost of the attacker's attack on the target, then the country The vast majority of attackers will not be able to get to continue to persist and give up, which is equivalent to the success of the defense against DDoS attacks.

An example:

I run a restaurant that usually seats up to 30 people at a time. You walk right into the restaurant, find a table, sit down and order, and you can eat right away.

Unfortunately, I offended a rogue.vpshosting He sent 300 people into the restaurant at the same time. They all seemed to be normal customers, and everyone said, "Hurry up with the food". But the capacity of the restaurant is only 30 people, so it's impossible to fulfill so many orders at the same time. In addition, they have blocked the door so that normal customers can't get in, effectively paralyzing the restaurant.

This is a DDoS attack, which sends out a large number of requests in a short period of time, exhausting the server's resources and making it impossible to access it properly, causing the actual site to go offline.

The DoS in DDoS is an acronym for Denial of Service, indicating that the purpose of this attack is to interrupt service. The first d is distributed, meaning that the attack doesn't come from one place, but from all directions, making it harder to prevent. You closed the front door, he came in the back door; you closed the back door, he jumped out the window.

cloud server hk: Efficient, Reliable, Global Connectivity for Seamless Operations.