Distributed Denial-of-Service (DDoS) attack

1. Distributed Denial-of-Service (DDoS) attack

2. What is Distributed Denial-of-Service (DDoS) attack? A Distributed Denial-of-Service (DDoS) attack is a malicious attempt in which the attacker makes it impossible for the services to be delivered. A DoS service makes websites, online services, servers, and other network resources, its target and overfloods them with traffic more than its bearing limit. The intention is, either the server slows down or even crashes and shut down so that the user’s request cannot be completed.

3. How does DDoS attack works? Internet-connected devices generally perform a Distributed Denial-of-Services (DDoS) attacks. The main system which is in direct control to the attacker, find some more vulnerable devices and gain control over them by anyhow hacking it or guessing its passwords, etc. These vulnerable devices which are remotely controlled by the attacker are individually called zombies or bot. Together this whole network is called a botnet. The number of bots in a botnet could be any, ten, hundred, thousand, there is no upper limit for this.

4. Different types of Distributed Denial-of-Service (DDoS) Attacks There are mainly three types of DDoS attacks: 1.Volumetric or Network-centric Attacks This attack uses a huge amount of traffic to flood the resource such as the server or website. This attack generally includes ICMU, UDP, and packet flood attacks. The size of a volumetric or network-centric attack is measured in bits per second (bps). Domain name system amplification attack is an example of this type of attack which uses the target’s IP address to send the DNS request.

5. 2.Protocol Attack This attack sends a very high number of packets to the target network infrastructure. This attack target the transport layer protocol using flaws in those protocols so that the server could get flooded and the request is not completed. It’s one example is the SYN flood attack which sends the target server’s IP address some ïnitial connection requests, which drag out the Transmission Control Protocol which is a never-ending process. The size of the protocol attack is measured in Packets Per Second (PPS).

6. 3. Application layer Attack In this attack, the application layer gets overwhelmed by several application calls. HTTP (HyperText Transfer Protocol) flood attack is the best example of this attack in which many web pages are refreshes over and over simultaneously. The size of this attack is measured in Request Per Second (RPS).

7. How to prevent Distributed Denial-of-Service (DDoS) attacks? While frankly speaking, there is no ultimate way to prevent the Distributed Denial-of-Services attack, but there are few ways that we can follow to reduce the possibility of being attacked. Those are: Get yourself enrolled into a DoS protection service that can detect the abnormal ● flow of traffic and could redirect that traffic away from you if needed. Create a backup plan for successful communication, mitigation, and recovery in case ● if you are attacked by the DoS attackers. Always keep an updated antivirus installed in your system to protect yourself from ● computer scam.

8. You can install Firewall and configure it accordingly so that it can restrict all the traffic ● coming to you as well as leaving your system. Follow good security habits and keep your security up to the required security standards so ● that access to your account is minimized Conclusion DDoS i.e. Distributed Denial-of-Services attack is a malicious attack that can have a severe ● impact on a targeted business or organization. But as there is no solid way to prevent this attack, we need to take precautions to save ourselves from this attack. If we will be more careful while being online, we can surely prevent this attack.