2 Denial of Service (DoS) and Distributed Denial of Service (DDoS) attacks have increased in number. Take note: saying THAT would be a gross understatement. Back in the comfortable past, only people with specialized knowledge and a good amount of resources were able to launch such high-end attacks. Today, anyone with access to the Internet and minimal technical know-how can very well execute an...

Network communication is gaining day by in different ways. Cloud one of the most recent and latest environments communication. Whereas this environment a facilitator for user to access his/her information from anywhere as when required. But technological enhancement also opening door new attacks. In paper, we have conducted an extensive study on Distributed Denial Service Attack (DDoS) well tec...

Denial of Service (DoS) or Distributed Denial of Service (DDoS) attacks are typically explicit attempts to exhaust victim’s bandwidth or disrupt legitimate users’ access to services. Traditional architecture of internet is vulnerable to DDoS attacks and it provides an opportunity to an attacker to gain access to a large number of compromised computers by exploiting their vulnerabilities to set ...

Distributed Denial of Service (DDoS) attacks have been a big threat to the Internet while no effective schemes have been proposed or deployed, leaving the Internet still vulnerable to such attacks. We propose a proactive DDoS defense scheme [Ki04] by having multiple routers form a defense perimeter. They collaboratively detect DDoS attacks, if exist, and differentiate attacking packets from goo...

Distributed denial-of-service (DDoS) attacks are one of the key threats and perhaps the toughest security problem for today’s Internet.Distributed Denial of Service (DDoS) attack has become a stimulating problem to the availability of resources in computer networks.With brief or no advance warning, a DDoS attack can easily drain the computing and communication resources of its victim within a s...

UDP traffic has recently been used extensively in flooding-based distributed denial of service (DDoS) attacks, most notably by those launched by the Anonymous group. Despite extensive past research in the general area of DDoS detection/prevention, the industry still lacks effective tools to deal with DDoS attacks leveraging UDP traffic. This paper presents our investigation into the proportiona...

This paper addresses possible Distributed Denial-of-Service (DDoS) attacks toward the wireless Internet including the Wireless Extended Internet, the Wireless Portal Network, and the Wireless Ad Hoc network. We propose a conceptual model for defending against DDoS attacks on the wireless Internet, which incorporates both cooperative technological solutions and economic incentive mechanisms buil...

This paper addresses possible Distributed Denial-of-Service (DDoS) attacks toward the wireless Internet including the Wireless Extended Internet, the Wireless Portal Network, and the Wireless Ad Hoc network. We propose a conceptual model for defending against DDoS attacks on the wireless Internet, which incorporates both cooperative technological solutions and economic incentive mechanisms buil...

Today Distributed Denial of Service (DDoS) attacks are causing major threat to perform online business over the Internet. Recently several schemes have been proposed on how to prevent some of these attacks, but they suffer from a range of problems, some of them being impractical and others not being effective against these attacks. Our previous work proposed an automated model that deals with t...

In the present era Internet has changed the way of traditional essential services such as banking, transportation, power, health, and defence being operated. These operations are being replaced by cheaper, more efficient Internet-based applications. It is all because of rapid growth and success of Internet in every sector. Unfortunately with the growth of Internet, count of attacks on Internet ...