Intro:
In computing, a Denial Of Service Attack is an attempt to make a machine or network resource unavailable to its intended users, such as to temporarily or indefinitely interrupt or suspend services of a host connected to the Internet. A Distributed Denial Of Service (DDoS) is where the attack source is more than one–and often thousands–of unique IP addresses.Criminal perpetrators of DoS attacks often target sites or services hosted on high-profile web servers such as banks, credit card payment gateways; but motives of revenge, blackmail or activism can be behind other attacks.
A Denial Of Service Attack is characterized by an explicit attempt by attackers to prevent legitimate users of a service from using that service. There are two general forms of DoS attacks: those that crash services and those that flood services.
The most serious attacks are divided and in many or most cases the machines can not be replaced easily identify the sender so that the IP address (IP address spoofing) and added to the set, nor filtering based on the source address can be.
Teardrop attacks
A tear on the target machine overlapping, mangled IP fragments with huge payloads that require sending. Because of this, the TCP / IP fragmentation re-assembly code of various operating systems can crash a problem. Windows 3.1x, Windows 95 and Windows NT operating systems, as well as earlier versions of Linux version 2.0.32 and 2.1.63 are vulnerable to this attack.Peer-to-peer attacks
Attackers have found a way to exploit a number of bugs in peer-to-peer servers to initiate DDoS attacks. The most aggressive of these peer-to-peer-DDoS attacks exploits DC++. With peer-to-peer there is no botnet and the attacker does not have to communicate with the clients it subverts. Instead, the attacker acts as a "puppet master," instructing clients of large peer-to-peer file sharing hubs to disconnect from their peer-to-peer network and to connect to the victim's website instead.
By S0ft Hcks!
MR:47{XYBER SHEIKH}
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