Distributed Denial of Service (DDoS) attacks are becoming more frequent and the size of these attacks is increasing. This increases the load on the networks of Internet Service Providers (ISPs), while also taking websites offline. Nowadays, many companies rely on Internet applications (banking, communication) for their core business. As such, outages of Internet applications can have a big fina...

Recently a number of highly publicized incidents of Distributed Denial of Service (DDoS) attacks against high-profile government and commercial websites have made people aware of the importance of providing data and services security to users. A DDoS attack is an availability attack, which is characterized by an explicit attempt from an attacker to prevent legitimate users of a service from usi...

IP anycast is widely being used to distribute essential Internet services, such as DNS, across the globe. One of the main reasons for doing so is to increase the redundancy of the service and reduce the impacts of the growing threat of DDoS attacks. IP anycast can be further used to mitigate DDoS attacks by confining the attack traffic to certain areas. This might cause the targeted service to ...

Recently many prominent web sites face a new type of denial of service attack known as Distributed Denial of Service attack (DDoS). Organizations deploying security measures such as firewalls, and intrusion detection systems could face the traditional DoS attack. Yet there is no complete solution neither for protection from DDoS attack, nor for preserving network hosts from participating in suc...

Recently a number of highly publicised incidents of Distributed Denial of Service (DDoS) attacks have made people aware of the importance of providing available securely the grids’ data and services to users. This paper introduces the vulnerability of grids to DDoS attacks, and proposes a distributed defense system that has a mixture deployment of sub-systems to protect grids from DDoS attacks....

IP anycast is widely being used to distribute essential Internet services, such as DNS, across the globe. One of the main reasons for doing so is to increase the redundancy of the service and reduce the impacts of the growing threat of DDoS attacks. IP anycast can be further used to mitigate DDoS attacks by confining the attack traffic to certain areas. This might cause the targeted service to ...

Distributed denial-of-service (DDoS) attack is one of the major threats to the web server. The rapid increase of DDoS attacks on the Internet has clearly pointed out the limitations in current intrusion detection systems or intrusion prevention systems (IDS/IPS), mostly caused by application-layer DDoS attacks. Within this context, the objective of the paper is to detect a DDoS attack using a m...

In a Denial of Service (DoS) attack, legitimate users are prevented from access to services or network resources. Distributed DoS (DDoS) occurs if a group of attackers coordinate in DoS. When a DDoS attack occurs in a mobile ad hoc network (MANET), the attacker compromises a number of mobile nodes, which can follow different mobility patterns and have different speeds. This paper provides a sur...

Distributed denial-of-service (DDoS) could be a rapidly growing drawback. The multitude and sort of each the attacks and the defense approaches is overwhelming. This paper is a survey on the drawback of denial-of-service (DoS) and Distributed Denial of Service (DDoS) attacks and projected ways in which to deal with it. we tend to describe the character of the matter and look for its root causes...

In this paper, we introduce a practical scheme to defend against Distributed Denial of Service (DDoS) attacks based on IP source address filtering. The edge router keeps a history of all the legitimate IP addresses which have previously appeared in the network. When the edge router is overloaded, this history is used to decide whether to admit an incoming IP packet. Unlike other proposals to de...