Distributed Denial of Service (DDoS) is a common attack in recent years that can deplete the bandwidth of victim nodes by flooding packets. Based on the type and quantity of traffic used for the attack and the exploited vulnerability of the target, DDoS attacks are grouped into three categories as Volumetric attacks, Protocol attacks and Application attacks. The volumetric attack, which the pro...

Distributed Denial of Service (DDoS) attacks is virulent, relatively new type of attacks on the availability of Internet services and resources. DDoS attackers infiltrate large number of computers by exploiting software vulnerabilities, to set up DDoS attack networks. DDoS attacks pose an immense threat to the Internet, therefore some defense systems are required to defend these attacks. In thi...

DDoS attack is a coordinated attack on massive scale and it is a major threat in current computer networks. It is not easy to detect the attack , The seriousness of the DDoS problem and the increased frequency of DDoS attacks have led to the advent of numerous DDoS defense mechanisms. Detection mechanism is the first step to avoid the DDoS attack. Some of these mechanisms address a specific kin...

Distributed Denial of Service (DDoS) attacks have become a large problem for users of computer systems connected to the Internet. DDoS attackers hijack secondary victim systems using them to wage a coordinated large-scale attack against victim systems. As new countermeasures are developed to prevent DDoS attacks and help systems that are victims of such an attack, attackers are constantly devel...

Threads posed by Distributed Denial of Service (DDoS) attacks are becoming more serious day by day. Accurately detecting DDoS becomes an important and necessary step in securing a computer network. However, Flash Event (FE), which is created by legitimate requests, shares very similar characteristics with DDoS in many aspects and makes it hard to be distinguished from DDoS attacks. In this pape...

Distributed denial of service attack(DDoS) brings a very serious threat to send to the stability of the Internet.This paper analyzes the characteristic of the DDoS attack and recently DDoS attack detection method. Presents a DDoS attack detection model based on data mining algorithm. FCM cluster algorithm and Apriori association algorithm used to extracts network traffic model and network packe...

Distributed Denials of Service (DDoS) attacks have become the daunting problem for businesses, state administrator and computer system users. Prevention and detection of a DDoS attack is a major research topic for researchers throughout the world. As new remedies are developed to prevent or mitigate DDoS attacks, invaders are continually evolving new methods to circumvent these new procedures. ...

Distributed Denial of Service (DDoS) attacks have become significant threats on Internet according to the development of network infrastructure and recent communication technology. There are various types of DDoS attacks with different characteristics. These differences have made very difficult to detect such attacks. Furthermore, the sophisticated the evolution of DDoS attacks techniques and t...

By penetrating into a large number of machines and stealthily installing malicious pieces of code, a distributed denial of service (DDoS) attack constructs a hierarchical network and uses it to launch coordinated assaults. DDoS attacks often exhaust the network bandwidth, processing capacity and information resources of victims, thus, leading to unavailability of computing systems services. Var...

Distributed Denial of Service (DDoS) attack is a large-scale, coordinated attack on the availability of services of a victim system or network resource, launched indirectly through many compromised computers on the Internet. Researchers have come up with more and more specific solutions to the DDoS problem. However, existing DDoS attack tools keep being improved and new attack techniques are de...