DOS Vs DDOS

Welcome to "HACKING begins - An approach to introduce people with the truth of HACKING",In this article I'll tell you difference between DOS & DDOS. A denial-of-service attack (DoS attack) or distributed denial-of-service attack (DDoS attack) is an attempt to make a computer resource unavailable to its intended users.

DOS : Denial Of Service

DDOS : Distributed Denial of Service

What IS DOS Attack? 

 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. Attacks can be directed at any network device, including attacks on routing devices and web, electronic mail, or Domain Name System servers. The point of such a denial of service attack is to overload the targeted server’s bandwidth and other resources.DOS a type of attack on a network that is designed to bring the network to its knees by flooding it with useless traffic. Many DoS attacks, such as the Ping of Death and TeardropTCP/IP protocols. attacks.

What IS DDOS Attack?  

A Distributed Denial of Service (DDoS) attack is a denial of service attack which is mounted from a large number of locations across the network.A distributed denial of service attack (DDoS) occurs when multiple systems flood the bandwidth or resources of a targeted system, usually one or more web servers. These systems are compromised by attackers using a variety of methods. Victims of a DDoS attack consist of both the end targeted system and all systems maliciously used and controlled by the hacker in the distributed attack. DDoS attacks can be very difficult to defend against. DDOS is very difficult to stop because number of systems attacking on a single system and this is very difficult to block thousand of IP's of several system by any firewall.

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Sahil Mahajan.